The enzyme DNA polymerase play in transcription, related to the promoter and terminator sequences on DNA is It knows where to begin transcribing and where to stop.
The correct option is (B).
DNA polymerase is not directly involved in transcription. Instead, it is primarily involved in DNA replication, where it synthesizes a new strand of DNA using a template DNA strand. Transcription, on the other hand, is the process of synthesizing RNA from a DNA template.
During transcription, RNA polymerase is the enzyme responsible for synthesizing RNA from a DNA template. However, DNA polymerase indirectly influences transcription through its interaction with promoter and terminator sequences on DNA.
1. Promoter sequences: DNA polymerase does not directly recognize promoter sequences. Instead, RNA polymerase binds to the promoter region of DNA to initiate transcription. Promoter sequences provide the necessary signals and binding sites for RNA polymerase to recognize and bind to the DNA template, initiating the transcription process. Therefore, DNA polymerase's role in transcription related to promoter sequences is indirect.
2. Terminator sequences: Similarly, DNA polymerase does not directly recognize terminator sequences. Once RNA polymerase reaches the terminator sequence on the DNA template during transcription, it signals the termination of transcription, and the newly synthesized RNA molecule is released. Terminator sequences provide the signal for RNA polymerase to terminate transcription and release the RNA transcript. Again, DNA polymerase's role in transcription related to terminator sequences is indirect.
In summary, while DNA polymerase is not directly involved in transcription, its role indirectly influences transcription through the maintenance of the DNA template and its interaction with promoter and terminator sequences. DNA polymerase ensures the integrity and fidelity of the DNA template, which is essential for the accurate initiation and termination of transcription by RNA polymerase at promoter and terminator sequences, respectively. Therefore, option B is the most accurate description of DNA polymerase's role in transcription related to promoter and terminator sequences on DNA.
For a science experiment. John gradually added a sedium hydroxide (NaOH) solution to warm vegetable oil in a glass test tube. He
observed that combining the two clear liquids resulted in a solution that turned cloudy. Which statement best explains why the
solution became cloudy?
CA The vegetable oil caused the mass of the sodium hydroxide solution to change
8. The sodium hydroxide solution caused the vegetable oil to undergo a physical change
Oc. The sodium hydroxide solution and vegetable oil underwent a chemical change
D. The vegetable at caused the density of the sodium hydroxide solution to change
The sodium hydroxide solution and vegetable oil underwent a chemical change.
Explanation:The reaction between a base and a fat or fatty acid is called as saponification reaction. Here the base dissociates into the cation and hydroxyl ion. The hydrogen from the fatty acid of the oil reacts with the hydroxyl ion to form water which is basically the neutralization reaction. This cation now reacts with the rest of the fatty acid to form a bipolar molecule which is the soap. During the reaction, the solution becomes cloudy but with time, it again goes back to solution. The cloudyness appears because oil isn't soluble in water based solutions and the base is actually made solution in water.
Here the sodium hydroxide reacts with oil to form water and the soap molecule which is a chemical change.
Answer:
The sodium hydroxide solution and vegetable oil underwent a chemicalchange.
Explanation: did it on study islandddd <3
QUICK 50 POINTS
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Which of these is an example of the moral obligations of all Roman citizens during the Republic?
A.
to treat slaves with respect and humanity
B.
to serve as a judge when asked to hear a legal case
C.
to serve in the military in the colonies
D.
to vote in all elections for magistrates
Answer:
B.
to serve as a judge when asked to hear a legal case
hope this helps
Answer:
B
Explanation:
Ms. Timms explains to her class that stars look different in the sky depending on how close they are to Earth. She takes the class into the hallway. She gives a flashlight to Maurice and an identical flashlight to Jessica. Maurice shines his flashlight about one meter away, close to the class. Jessica walks far down the hallway and shines her flashlight about twenty meters from the class. What did the class notice about the two lights? A) The far light was wider. B) The closer light appeared (or looked) brighter C) The lights were the same size. D) The lights were different shapes.
Answer: The closer light was appeared (or looked) brighter
Explanation:
The students notice that the closer flashlight appeared brighter. This perception is due to a physical law known as the Inverse Square Law, which explains that light intensity decreases with distance.
Explanation:In the classroom scenario presented, the students notice that the closer light appears brighter than the light which is farther away. This is because of a known concept in physics called the Inverse Square Law, which states that the intensity of a light (in this case, or radiation) drops significantly as you move further from the source. So, even though both Maurice and Jessica have identical flashlights, the light from Jessica's flashlight appears less bright due to the increased distance.
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in which stage of the cell cycle is this cell?
mitosis
cytokinesis
interphase
The stage of the cell cycle could be mitosis, cytokinesis, or interphase, depending on the cell's current activities and appearance. Mitosis is where the nucleus divides, cytokinesis is where the cytoplasm splits into two new cells, and interphase is a preparatory phase where the cell grows and DNA replicates.
Explanation:The question seems to be asking at which stage of the cell cycle a particular cell is, but without a visual representation or further details, it's impossible to definitively say. However, let's explain what happens in each stage. Mitosis is the part of the cell cycle in which the nucleus of the cell divides. It's generally preceded by interphase and followed by cytokinesis. Cytokinesis is the stage where the cell's cytoplasm splits, creating two separate cells. Meanwhile, interphase is the phase in which a cell prepares and grows before mitosis, and it also is the stage where DNA replication occurs. Hence, a cell could be in any of these phases based on its activities and appearance.
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The cell is in the stage of mitosis.
The correct option is (a).
- Mitosis is the phase of the cell cycle where the cell divides its nucleus into two identical nuclei.
- During mitosis, the chromosomes condense, align at the metaphase plate, separate into two sets, and move to opposite poles of the cell.
- This stage is crucial for growth, repair, and asexual reproduction in organisms.
- Mitosis is followed by cytokinesis, where the cytoplasm divides, resulting in two daughter cells with identical genetic material.
- Interphase, the longest phase of the cell cycle, precedes mitosis, during which the cell prepares for division by growing, replicating DNA, and performing its normal cellular functions.
what is the relationship between chromatin and chromosomes
Answer:
Both chromatin and chromosome structures are nucleoprotein complexes in which chromatin is uncondensed part whereas chromosome is condensed part.
Explanation:
Chromatin, made up of DNA and protein, compactly forms into chromosomes visible during cell division. The structure of chromosomes is a direct result of how chromatin is arranged and packed.
Explanation:The relationship between chromatin and chromosomes is essentially related to their structure and function inside a cell. Chromatin is a substance within a chromosome consisting of DNA and protein. It is the material that makes up the chromosomes when a cell is at rest. Chromosomes, on the other hand, are highly condensed structures formed by chromatin that are visible during cell division. Therefore, the structure of chromosomes is directly derived from the arrangement and packing of chromatin.
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Polaris, also known as the North Star, is about 46 times larger than the Sun. Explain why the Sun appears brighter than Polaris from Earth. A) Polaris is much farther from Earth than the Sun. B) The Sun's temperature is much greater than Polaris's. C) Polaris's light is partially hidden behind other planets. D) The Sun has a much grea
A) Polaris is much farther from Earth than the Sun -is the reason why Polaris although about 46 times larger than the Sun, the Sun appears brighter than Polaris from Earth.
Explanation:
Astronomers define the brightness of a star based on its apparent magnitude and absolute magnitude. The apparent magnitude tells about how bright does a star looks from the Earth. The absolute magnitude of star is its brightness or magnitude at a standard distance of 10 parsecs or 32.6 light-years.
Accordingly,
The apparent magnitude of Sun is 26.74; while that of Polaris is 2.02
The absolute magnitude of Sun is 4.63; while that of Polaris is 3.6
The Sun is at a distance of 0.000015649 light years from the Earth; while the Polaris is 434 light years from the Earth. A star appears brighter from the Earth due to the closeness of the star to the Earth.
All these factors make the Sun appear brighter than the Polaris .
What other system does the circulatory system work with?
Answer:
The respiratory system.
Explanation:
The circulatory system works with the respiratory system. The circulatory system transports oxygen through the body, while the respiratory system supplies the body with that oxygen.
I hope this helps. Happy studying. :)
What is the rock cycle
Answer:
The rock cycle is a basic concept in geology that describes transitions through geologic time among the three main rock types: sedimentary, metamorphic, and igneous. Each rock type is altered when it is forced out of its equilibrium conditions. For example, an igneous rock such as basalt may break down and dissolve when exposed to the atmosphere, or melt as it is subducted under a continent. Due to the driving forces of the rock cycle, plate tectonics and the water cycle, rocks do not remain in equilibrium and change as they encounter new environments. The rock cycle explains how the three rock types are related to each other, and how processes change from one type to another over time. This cyclical aspect makes rock change a geologic cycle and, on planets containing life, a biogeochemical cycle.
Answer:
basic concept in geology that describes traditions through geologic time among the three main rock types.
Explanation:
it is formed under extreme pressure and temperature deep inside mountain chains.
how many animals are in the world?
Answer:
8.7 million animals #markasbrainliest
Prompt
Identify and discuss factors that influence ecosystem productivity
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Answer:
Energy in an ecosystem is mainly made by the producers of an ecosystem. The net primary productivity in an ecosystem depends on many factors. Some of them are:
Amount of sunlight: The amount of sunlight that the plants and trees might be has basic influence on the primary productivity. Plants and trees receiving enough sun light will be able to make more food for organisms living in that area as compared to the producers which do not receive enough sun light.Soil texture: The soil texture and the availability of nutrients heavily influence the primary productivity of an ecosystem. An area having a soil texture with not enough nutrients will not be able to grow more plants. As a result, the productivity would decrease.
Final answer:
Ecosystem productivity is mainly influenced by abiotic factors such as temperature and moisture, with net primary productivity being a key measure. Warm, wet climates lead to higher productivity, while extreme conditions result in lower levels. These factors dictate the type and abundance of plant and animal life in various biomes.
Explanation:
Factors that influence ecosystem productivity are primarily determined by abiotic factors like temperature, moisture, and availability of resources. In terrestrial environments, net primary productivity is a critical measure, representing the rate at which plants produce organic matter through photosynthesis minus what is used during cellular respiration. This productivity is largely dependent upon conditions favoring plant growth, such as warm and wet climates that facilitate efficient photosynthesis, enzymatic activity, and minimal water loss through transpiration.
Biomes such as tropical rainforests exhibit high net primary productivity due to optimal growth conditions. In contrast, environments such as deserts or tundra biomes, with extreme temperatures and limited water, display much lower levels of primary productivity. This, in turn, affects the type and abundance of animal life they can support. Consequently, changes in abiotic factors like climate can have significant impacts on the productivity of ecosystems worldwide.
Compare the function of chloroplasts and mitochondria in a cell. In your response, include:
a) The name of the process that occurs in each organelle
b)The products of each process
c)The importance of each process to the cell
Final answer:
Chloroplasts carry out photosynthesis to produce glucose and oxygen, while mitochondria perform cellular respiration to produce ATP. Both organelles are double-membraned and contain their own DNA and ribosomes, but they have different structures like cristae in mitochondria and chlorophyll-containing thylakoids in chloroplasts.
Explanation:
The function of chloroplasts and mitochondria within a cell are crucial for energy production and metabolism. Chloroplasts carry out photosynthesis, a process where carbon dioxide (CO₂), water, and light energy are used to make glucose and oxygen. The products of photosynthesis, glucose and oxygen, are essential for the cell as glucose serves as energy for cellular activities and oxygen is vital for aerobic respiration. Mitochondria, on the other hand, perform cellular respiration where glucose is broken down with oxygen to produce carbon dioxide, water, and ATP (adenosine triphosphate), the energy currency of the cell.
The importance of these processes to the cell lies in their role in energy transformation. Photosynthesis captures light energy and converts it into chemical energy stored in glucose, while cellular respiration converts the chemical energy in glucose into ATP, which can be readily used by the cell for various functions. These organelles have structural similarities, with both encased by a double membrane and having their own DNA, but they also have differences such as the presence of cristae in the mitochondria and thylakoids with chlorophyll pigments in chloroplasts.
Structural and Functional Similarities and Differences
Both chloroplasts and mitochondria are double-membraned organelles that produce ATP.Mitochondria have a matrix and inner folds called cristae; chloroplasts contain thylakoids with chlorophyll.Both have their own DNA and ribosomes.Chloroplasts carry out photosynthesis, while mitochondria conduct cellular respiration.What is the phenotype ratio for this cross ?
The phenotype ratio for a cross between a white-eyed male and a female heterozygous for red eye color is 1:1:1:1, consisting of equal parts red-eyed females, white-eyed females, red-eyed males, and white-eyed males.
Explanation:The phenotype ratio for a cross between a white-eyed male and a female that is heterozygous for red eye color in fruit flies can be determined using Mendelian genetics. The white-eye mutation is often found on the X chromosome and is recessive. Assuming the female has one red (dominant) and one white (recessive) allele (XWXw), and the male has only the white allele (XwY), their offspring's phenotypes depend on the alleles they inherit.
Half of the male offspring will receive the Xw allele from their mother and a Y chromosome from their father, resulting in white eyes (XwY). The other half will receive the XW allele and a Y from their father, resulting in red eyes (XWY). Female offspring will receive one X chromosome from each parent. Half of the females will be red-eyed (XWXw), and half will be white-eyed (XwXw). This yields a phenotype ratio of 1 red-eyed female: 1 white-eyed female: 1 red-eyed male: 1 white-eyed male, or simply 1:1:1:1.
Considering an Aa x Aa cross for a different scenario, the phenotype ratio is typically 3:1 for the dominant versus recessive trait. A dihybrid cross like AABb x Aabb yields a 9:3:3:1 phenotype ratio when both traits are considered, but if we consider only one trait at a time, we observe a 3:1 monohybrid cross ratio. When you cross AAbb with aabb, all offspring will display the recessive phenotype, resulting in a 1:0 ratio. For pea plants, a cross between a YY and yy individual yields all yellow offspring (1:0), while a Yy x Yy cross gives a 3:1 yellow to green ratio. When crossing guinea pigs, an SS x ss yields all smooth coat offspring (1:0) and a Ss x ss cross results in a 1:1 ratio of smooth to rough coats.
Legal medications can have riska or side effects even when they are used
properly.
A. True
B. False
Which of these best describes a transgenic organism?
A)DNA from one or organism is put into another
B) delete part of the original DNA
C) humans choose which organisms should mate for favorable characteristics
A transgenic organism is one which has had DNA from one organism incorporated into another, enabling a new trait or function. This does not remove any part of the original DNA, nor does it involve selective breeding. The correct option is A.
Explanation:A transgenic organism is best described by option A. In this case, DNA from one organism is incorporated into another, creating a new genetically modified organism. The organism receiving the DNA now has a new trait or function that it didn't originally have, depending on the DNA that was introduced. This process is extensively used in modern biotechnology, for instance in introducing herbicide resistance in plants, or producing insulin in bacteria. It's essential to note that this process doesn't remove or delete any part of the original DNA, it adds to it. Furthermore, it's also distinct from option C, which describes selective breeding, not transgenic modification.
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A transgenic organism is best described by option A: DNA from one or more organisms is put into another. This involves the use of biotechnology to introduce foreign DNA into an organism. This process is widely used in research, agriculture, and medicine.
This is because transgenic organisms are those that contain foreign DNA which has been introduced using biotechnology. This foreign DNA can come from another species or can be recombinant DNA that has been manipulated in the lab and then reintroduced into the organism. The process of creating transgenic organisms involves genetic engineering and is widely used in research, agriculture, and medicine. For example, genetically modified crops such as corn and soybeans are transgenic organisms that contain specific genes introduced to enhance resistance to pests or herbicides.What are the possible blood types of a child that had parents that were both heterozygous for "B" blood.
Answer:
B
Explanation:
why is there infinite variety in the living world ?
Infinite variety in the living world, known as biological diversity, is a result of evolutionary processes and mutations that allow organisms to adapt to different environments. These adaptations lead to a range of species that can survive under various conditions, thus contributing to the vast diversity of life on Earth.
The question 'why is there infinite variety in the living world?' touches on the concept of biological diversity, which refers to the multitude of different species of plants, animals, and microorganisms that exist on Earth, as well as the complexity of ecosystems they form. There are over a million known species, and scientists estimate that this is just a fraction of the total number that exists. The vast variety of life is attributed to evolution and the concept of mutation, where random changes in genetic material create new traits that can be advantageous for survival. Organisms that are better suited to their environment tend to have greater reproductive success, as per the principles of natural selection. Over time, as environments change, the process of natural selection favors the survival of organisms that have beneficial mutations, leading to a rich diversity of species adapted to a wide range of environments.
Environmental changes can be both gradual and sudden, such as natural disasters, which also play a role in shaping the diversity of life. Species diversity ensures that at least some life forms can survive and thrive amidst various environmental shifts. The biodiversity we observe today is a snapshot of a dynamic, ongoing process of species adaptation and evolution.
What effect did the simulated acid rain have on the marble chip?
Answer:
When acid rain falls on the marble stone, it dissolve calcium when the acid present in the rain water react with the calcium of the marble stone.
Explanation:
Acid rain is formed when gases such as carbondioxode and sulfur dioxide etc that is emitted from vehicles and industries goes to the atmosphere and react with the water present in the form of clouds and formed the water acidic. When this water comes down to the earth, it damage many materials due to acid present in it.
Which best summarizes the process of protein synthesis?
ORNA instructs DNA to make proteins.
DNA unzips, resulting in the formation of two protein molecules.
RNA moves the DNA code to the ribosomes for protein synthesis
O DNA makes proteins in the nucleus.
Answer:
RNA moves the DNA code to the ribosomes for protein synthesis
Explanation:
Translation is the process by which mRNA is decoded and translated to produce a polypeptide sequence, otherwise known as a protein. This method of synthesizing proteins is directed by the mRNA and accomplished with the help of a ribosome, a large complex of ribosomal RNAs (rRNAs) and proteins. In translation, a cell decodes the mRNA genetic message and assembles the brand-new polypeptide chain. tRNA, translates the sequence of codons on the mRNA strand. The main function of tRNA is to transfer a free amino acid from the cytoplasm to a ribosome, where it is attached to the growing polypeptide chain. tRNAs continue to add amino acids to the growing end of the polypeptide chain until they reach a stop codon on the mRNA. The ribosome then releases the completed protein into the cell.
Answer:
RNA moves the DNA code to the ribosomes for protein synthesis
Explanation
Which of these technologies allows scientists to follow the movements of animals after placing electronic collars on them?
Answer:
The Global Positioning System (GPS) works in conjuction with electronic collars to enable scientists to track endangered animals.
Explanation:
Answer:
Which of these technologies allows scientists to follow the movements of animals after placing electronic collars on them?
hidden camera being placed on animals or strategic location of this camera has greatly helped in monitoring movement although the usage of drones has taken over the use of helicopter in monitoring of animal movement
Explanation:
A scientist wants to study how 10 million liters of leaked crude oil would
affect the Gulf of Mexico. Which of these is the most ethical reason for using
a simulation rather than an experiment with crude oil in the Gulf of Mexico?
O
A. A simulation could be repeated more times than an experiment.
O
B. The ecosystems affected would have to be observed for a long
time.
O
C. It would cost too much to buy that much crude oil for an
experiment.
0
D. The effects of pollution can be studied without harming an
ecosystem.
Answer:
D.
Explanation:
In terms of being ethical or unethical, it would be unethical to purposely dump 10 million liters of crude oil into the Gulf of Mexico because of the damage it would do to the organisms living there including plants, animals, and people.
Which of the following organs is NOT a part of the immune system?
Appendix
Tonsils
Peyer's patch
Thymus
Answer:
Peyer's patch
Explanation:
Which process results in recombination of genetic material?
The process of recombination, or crossover, happens during meiosis. It results in the exchange of genetic material between homologous chromosomes, leading to unique combinations of maternal and paternal genes. This process contributes significantly to genetic diversity.
Explanation:The process that results in recombination of genetic material is known as crossover, or recombination. It takes place during meiosis when two homologous chromosomes align and exchange parts of their genetic material.
This process results in the creation of recombinant chromosomes which contain a mix of maternal and paternal genes that did not exist before the crossover. Multiple crossovers can occur, each generating a unique combination of genes. This recombination adds to genetic diversity among gametes and is a vital component of evolution.
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What’s the oxidation state of Se in H2SeO3
Answer: (+1) for each H and (-2) for each O, (+4) for Se
Explanation:
dog excrement is carried by rain into bodies of water, where it causes algae to grow rapidly and crowd out other organisms in the ecosystem. what is this process called?
answer asap
Answer:
When dog excrement reach the bodies of water transported by rainwater, producing the rapid growth of algae, this process is called eutrophication, and involves the crowd out other organisms in the ecosystem.
Explanation:
The dog's excrement contains nitrogen and phosphorus, which produces the enrichment of the body of water, and allows the development of algae in them.
Eutrophication consists of the process by which a water source acquires nutrients, especially nitrogen and phosphorus, which promote the growth of algae, in addition to the increase of other life forms, altering the existing ecosystem.
This process usually occurs with agricultural runoff, where fertilizer residues reach the water and produce its enrichment. It's also possible to observe eutrophication when excrement or other natural waste, rich in nitrogen and phosphorus, reaches a water source.
Eutrophication is also called hypertrophication.
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in order for natural selection to occur Charles Darwin stated we must begin with a population for organisms that has genetic
Answer:
D. variation.
Explanation:
In order for natural selection to occur, Charles Darwin stated we must begin with a population that has genetic variation. The genetic variation allows some members of the population to have traits, like a certain color, that helps them to survive. If an organism survives, it reproduces, and then passes those traits on to the offspring.
For natural selection to occur as defined by Charles Darwin, there needs to be genetic variation within a population of organisms. When a certain trait provides a survival advantage, it becomes more common over generations through the process of natural selection.
Explanation:In order for natural selection to occur, Charles Darwin indeed stated that we must begin with a population of organisms that possesses diverse genetic variation. This genetic variability within a population is vital for natural selection, as it represents different adaptations of the organisms to their environment. When a certain trait gives an organism an advantage in survival and reproduction in a particular environment, this trait would increase its frequency in the population over generations through the process of natural selection. For instance, if a species of birds exists where some have short beaks and others long, and if long beaks turn out to be more advantageous in obtaining food, then the long-beaked birds will have a higher survival rate and thus more offspring. Over generations, the prevalence of long beak will increase in the population thus illustrating natural selection.
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Is Rhinoceros and Paraceratherium similar in size?
However both Rhinoceros and Paraceratherium belong to the same kind species, they have some differences in some aspects.
Explanation:
1. The accurate size of Paraceratherium is undiscovered because of the incompleteness of the specimens. but some analyses show that Paraceratherium is larger than rhinoceros.
2.No, their facial composition differs because Rhinoceros have a large horn in its front but Paraceratherium doesn't have.
3.paraceratherium had large, tusk-like teeth and The legs were long and pillar-like. rhinocerous have a strong, cylindrical body with a large head, almost short legs, and a tiny tail.
4.yes they have overall related developments in their edifice and behaviors.
5.Image
How would students go about getting into these careers?
Answer:
Career counselling is one of the best methods which can help students to develop a career in their field of interest. While choosing a career, the students should keep in mind that they should chose the option in which they are interested. The students should spend time in exploring different careers in their field of interest and choose accordingly.
EXPERIMENT: PHOTOSYNTHESIS REACTIONS
There are two life sustaining reactions photosynthesis which converts energy from the sun into a usable form of energy for living things and cellular respiration which converts the energy that is stored in the product of photosynthesis into a usable form of energy for the cell. The equation for photosynthesis is 6H2O + 6CO2 -➔ C6H12O6 + 6O2. Oxygen gas is a waste product for the plant and is released into the atmosphere. In this lab you will look at several things that can affect the rate of the reaction by looking at the amount of oxygen gas produced.
OBJECTIVES
Determine factors that affect the rate of the photosynthesis reaction.
Online lab
This animation will demonstrate one factor that affects the rate of the photosynthesis reaction. You will be observing a water plant, elodea undergo photosynthesis. The solution that the elodea is in is a solution of sodium bicarbonate (baking soda) and water. The sodium bicarbonate provides the carbon dioxide needed for the photosynthesis reaction, this factor will remain constant in this animation. The factor that will be tested is the light intensity. The light intensity will be varied by changing the wattage of the light bulbs. For each trial, you will count the bubbles released by the elodea undergoing photosynthesis. Be sure to record your observations and data to use to complete the assignment.
This experiment will show the effect of light intensity on the rate of photosynthesis.
For each trial, you will be counting the number of bubbles the elodea plant releases.
Remember to record you data and any observations on your data sheet.
In trial one, the light is from a sixty watt bulb and is 20 cm from the beaker containing the elodea set up.
Once the time starts, count the number of bubbles the elodea releases for 3 minutes.
Start the timer and count the number of bubbles released in 3 minutes. Record your data at the end of the trial.
For trial 2, the light will still be twenty centimeters from the beaker, but the bulb has been replaced with a one hundred watt bulb.
Start the timer and count the number of bubbles released for 3 minutes. Remember to record your data at the end of the trial.
Again, for trial three, the light will be twenty centimeters from the beaker. This time the light bulb is a one hundred fifty watt bulb.
Start the timer one more time and count the bubbles for 3 minutes. Record your data.
Now use the data you collected to complete the assignment.
In complete sentences, answer these questions in the essay box below. Be sure to use the data and observations you collected if needed.
1) What are the bubbles that the elodea released made of?
2) What conclusions can you draw about the relationship between light intensity and the rate of photosynthesis? Be sure to refer to your data and justify your response.
3) What is another way that the intensity of the light could be tested? Describe your procedure.
4) Look at the photosynthesis reaction 6H2O + 6CO2 -➔ C6H12O6 + 6O2. What do you think might be other factors that can affect the rate of this reaction?
5) Make a hypothesis about your answer to question 4.
6) Design an experiment to test your hypothesis in question 5.
What grade is this,i did not get a chance to see
The bubbles released by the elodea plant during photosynthesis are oxygen. With increase in light intensity, the rate of photosynthesis increases. Other factors like CO2 concentration, water availability, and temperature could impact the rate of photosynthesis and experiments can be designed to test these.
Explanation:1) The bubbles that the elodea released are made of oxygen. This is a byproduct of photosynthesis.
2) Based on the data collected, we can conclude that as light intensity increases, so does the rate of photosynthesis. This is represented by the increasing number of bubbles (oxygen) being produced with each increase in light intensity.
3) Another way to test the light intensity could be by changing the distance of the light from the plant. The procedure would involve keeping the light of same wattage and varying the distance from the plant for each trial, and counting the number of bubbles released.
4) Other potential factors that might affect the rate of photosynthesis include carbon dioxide concentration, water availability, and temperature.
5) Hypothesis: If the carbon dioxide concentration were increased, then the rate of photosynthesis would increase.
6) To test this hypothesis, an experiment could be designed where the Elodea plant is exposed to environments with different carbon dioxide concentrations while keeping all other factors constant. The number of bubbles released would then be counted over the time of exposure to each concentration, to compare the rate of photosynthesis.
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explain why a heavy rainfall on a fruit orchard in the spring (when it is flowering) might result in a poor fruit yield in the fall.
A homozygous type B woman marries a heterozygous type A man. Show punnett square genotypes and phenotype
Phenotype is Type A: Type B
Genotype is 1:1
Explanation:
It is given that type B woman is homozygous.
Thus the genotype of the woman can be BB or bb
The man is of type A and heterozygous.
Thus the genotype of the man is Bb
We see that when the genotype is heterozygous Bb then the gene expresses type A condition
So, when the alleles are in homozygous dominant condition then the gene BB will also express in type A condition.
But we know that the women is type B. So, the genotype of the women is bb.
Cross between bb X Bb is shown in the punnett square attached
Thus,
Phenotype is Type A: Type B
Genotype is 1:1