68. A biologist was culturing some muscle cells
from a mouse (an aerobic organism) in a petri
dish. He was interested in measuring the amount
of ATP produced by the muscle cells when the
cells were supplied with glucose. At the beginning
of the experiment, the cells were producing large
quantities of ATP. He then added a substance
called malonic acid to the cell culture, and the
amount of ATP produced fell to near zero.
a) Which organelles in the muscle cells were
most likely affected by the malonic acid?
b) Why did the ATP production fall to near zero
but not actually zero?
c) Propose a testable hypothesis concerning res-
piration in cells treated with malonic acid.
d) Predict the effect of malonic acid on an anaer-
obic organism and explain your prediction.​

Answers

Answer 1

Final answer:

The malonic acid most likely affected the mitochondria in the muscle cells, leading to a decrease in ATP production. The ATP production fell to near zero but not actually zero because other metabolic pathways like glycolysis can still generate small amounts of ATP in the absence of oxygen. A testable hypothesis could be that malonic acid inhibits the enzymes involved in aerobic respiration, leading to a decrease in ATP production. If malonic acid is added to an anaerobic organism, it is unlikely to have a significant effect on ATP production.

Explanation:

The organelles in the muscle cells most likely affected by the malonic acid are the mitochondria. Mitochondria are responsible for producing adenosine triphosphate (ATP), which is the main energy-carrying molecule in cells. The malonic acid likely disrupted the normal functioning of the mitochondria, leading to a decrease in ATP production.

The ATP production fell to near zero but not actually zero because there may have still been a small amount of ATP being produced through other metabolic pathways in the cells, such as glycolysis. Glycolysis is an anaerobic process that can generate small amounts of ATP even in the absence of oxygen.

A testable hypothesis concerning respiration in cells treated with malonic acid could be that the malonic acid inhibits the enzymes involved in aerobic respiration, leading to a decrease in ATP production. This hypothesis could be tested by comparing the ATP production in cells treated with malonic acid to cells not treated with malonic acid.

If malonic acid is added to an anaerobic organism, it is likely to have little to no effect on ATP production. Anaerobic organisms rely primarily on glycolysis for ATP production, which does not require oxygen or functioning mitochondria. Therefore, the malonic acid would not significantly impact ATP production in an anaerobic organism.


Related Questions

Energy ______ takes place within cells

Answers

Answer: Respiration

Explanation:

Respiration is the process of chemical energy stored in food which occurs through various enzyme controlled reactions. Some of the energy generated is stored as adenosine triphosphate (ATP) Hence, chemical energy from food is converted to chemical energy in the cell which the cell stores as ATP

What is the study of thermodynamics?​

Answers

Thermodynamics is the study of heat flow.

a p e x

The study of heat flow. Therefore option A is correct.

Thermodynamics is the scientific study of the relationship between heat and energy transfer within a system.

It explores the principles that govern the conversion of energy and the transfer of heat between different substances.

Thermodynamics delves into how thermal energy flows from a higher-temperature region to a lower-temperature region and how it can be harnessed to perform work.

This field of study is crucial for understanding the behavior of matter and energy, as well as for designing and analyzing various processes and systems, such as engines, power plants, and refrigeration systems.

Thermodynamics is foundational to physics and engineering and has broad applications in numerous scientific and technological areas.

Therefore option A is correct.

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Your question is incomplete, but most probably your full question was.

What is the study of thermodynamics?​

A. The study of heat flow

B. The study of the nucleus

C. The study of electric fields

D. The study of organic matter

Examine the leaves of a palm tree.



Which statement most specifically describes a palm tree?

Palm trees are dicots.
Palm trees are monocots.
Palm trees are angiosperms.
Palm trees are flowering plants.

Answers

Answer:

b

Expla!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer: the correct answer is b.

Explanation: i don’t know how to explain it but i found it in my notes i wrote down

what kind of problems will we face if our body had no muscles ​

Answers

Answer:

musculer system is important part of our body. Muscles hold our bones together and helps them to move.

so if we don’t have muscles in our body, we won’t be able to move. we won’t be able to open and close our mouth. eyes etc. we can’t move our any body part.

no smile, no cry, and even we would not be able to breathe.

Explanation:

the cause of the phases of the moon is a cycle that is close to blank long

Answers

28 days

It takes our Moon about 28 days to complete one cycle of phases (from new Moon to new Moon).

Answer:

28 days

Explanation:

Question: What is the effect of day length on plant
growth?
Hypothesis: Plants will grow more when the day is
longer
Describe the experiment you would use to test the
hypothesis. Be sure to include variables as well as
experimental and control groups.

Answers

Answer:

The experiment can be done as follows:

Some plants can be grown in conditions where they are given maximum amount of day light. Others might be kept in the day time for a period of few hours and then be places inside a room where no light can come. The plants which receive medium amount of light will be the control group of this experiment. In the end, the growth of the plants in the experimental group shall be compared with the control group to compare the results.

The Earth's rotation shapes the direction that wind blows. This is known as
the coriolis effect
convection
PER
FEDERABERLER
ERREFERENT
FEST
the doldrums
revolution

Answers

Earth's rotation shapes the direction that winds blow is called as Coriolis effect

Explanation:

Coriolis effect is a kind of force that acts on a mass by using a inertial force.When earth rotates in its axis, the air that covers the earth also flows in a direction which is mainly caused by Coriolis effect.When the difference between pressure increases,wind flow becomes strong.This force acts at right angle of direction to pressure gradient force,which causes movement of wind in northern hemisphere and left in southern direction.During low pressure, the wind flows in a clock wise manner and during high pressure, it moves in anti clock wise manner.

Part of stratosphere contains a gas that blocks about 99% of the dangerous ultraviolet rays that reach the Earth from the Sun.


Image courtesy of the U.S. EPA

This portion of the stratosphere if known as the _______.
A.
tropopause
B.
mesosphere
C.
thermosphere
D.
ozone layer

Answers

Ozone layer is the correct answer

Which statement best describes the energy in this
system?

A.The potential energy in the system is greatest at X.
B.The kinetic energy in the system is greatest at X.
C.Total energy in the system decreases as the ball moves from X to Y.
D.Total energy in the system increases as the ball moves from X to Y.

Answers

Answer:

A-The potential energy in the system is greatest at X.

Explanation:

The potential energy in the system is greatest at X.

Answer:

A-The potential energy in the system is greatest at X.

explain

The potential energy in the system is greatest at X.

Gel electrophoresis is often used in forensics. Look at the gel on the right. From the evidence DNA, which individual matches the DNA evidence left at the crime scene?

Answers

Answer:

Suspect #2 matches the evidence.

Explanation:

Gel Electrophoresis can be described as a molecular biology technique which is used to separate DNA, RNA and proteins based on their molecular sizes. Usually the different samples of the DNA are compared to a standard sample to see which of the suspected samples matches with the standard one.

In the diagram above, the bands from the gel electrophoresis show that the suspect 2 has the most similarities with the standard DNA sequence taken from the crime scene. Hence, he might be the culprit.

Final answer:

Gel electrophoresis is a technique used in forensic science to compare DNA samples by separating DNA fragments according to size. DNA is loaded into an agarose gel and subjected to an electric field, allowing smaller fragments to move faster towards the positive electrode. Stained bands showing DNA fragments are compared to identify matching DNA profiles.

Explanation:

Gel electrophoresis is a powerful technique in forensic science for analyzing DNA samples. When a DNA sample from a crime scene is compared to samples from individuals, the process involves several steps. First, DNA is extracted from bodily fluids such as blood, semen, or saliva. The extracted DNA is treated with restriction enzymes and amplified using the Polymerase Chain Reaction (PCR). This mixture of DNA fragments and restriction enzymes is loaded into wells on an agarose gel, and an electric current is applied. The DNA moves towards the positive side of the gel since DNA molecules are negatively charged due to their phosphate backbone. Smaller DNA fragments move more rapidly through the gel matrix and will be located further towards the positive electrode, while larger fragments will migrate more slowly and be closer to the wells.

After electrophoresis, bands are stained using a DNA-specific dye like ethidium bromide to visualize the DNA segments. The pattern of bands is what constitutes a DNA fingerprint, with each band representing DNA fragments of varying sizes. The individual whose DNA pattern matches that of the evidence left at the crime scene is considered to have a matching DNA profile. The DNA patterns are analyzed by comparing the position and size of bands. Typically, a DNA ladder containing fragments of known sizes is used as a reference to determine the size of the DNA fragments present in the sample.

Which statement best describes the crust?

Answers

Answer:

Outermost layer of the Earth

Explanation:

The crust is Earth's outermost layer, comprised of continental and oceanic types, with varying densities and compositions. It is the site of earthquakes due to its brittle nature and contains valuable mineral resources and fossil fuels.

The crust is the outermost layer of Earth, characterized by its low density and higher concentrations of lighter elements like silicon, aluminum, calcium, sodium, and potassium. It forms only about 1 percent of Earth's mass and 2 percent of its volume. There are two primary types of crust: the continental crust, which is thicker, less dense, and similar in composition to granite; and the oceanic crust, which is thinner, denser, and similar in composition to basalt. The crust is where we find the majority of earthquakes, which generally occur in the uppermost, more brittle layers.

The lithosphere includes the crust and the uppermost part of the mantle, with the crust itself being broken up into tectonic plates that float on the mantle and move a few centimetres per year. This motion can create new crust at mid-ocean ridges and recycle old crust back into the mantle at subduction zones. The crust is where we find all of our mineral resources and fossil fuels, making it of great interest for human activities.

A cruise ship makes its way from one island to another. The ship is in motion compared with which reference point

Answers

Answer:

Light house

Explanation:

When a cruise ship makes its way from one island to another. The ship is in motion is always compared with the a light house on a near by island as it serves as a guiding hand and acts as a reference point for ships coming from different island.

What are some facts about the marine ecosystem?

Answers

Answer:

The Marine Ecosystem is the Largest Ecosystem on Earth

The oceans alone cover about 70% of the Earth's surface or 140,000,000 square miles. The average ocean depth is about 12,000 feet and the deepest point is the Mariana Trench in the Pacific Ocean with a depth of about 32,800 feet.

Explanation:

What are nucleobases?
A.harmful substances found in the environment
B.nitrogen molecules that create the DNA sequence
C.special and unique enzymes used in DNA replication
D.genetic information that is passed down to offspring

Answers

Answer:

B

Explanation:

Nucleobases, also known as nitrogenous bases or often simply bases, are nitrogen-containing biological compounds that form nucleosides, which in turn are components of nucleotides, with all of these monomers constituting the basic building blocks of nucleic acids.

Remy is smoking too closely to a building that manufactures fertilizer. When he puts out his cigarette near the hazardous waste, it sparks a fire because the fertilizer is flammable. What kind of hazard did the chemical waste cause?

Answers

The chemical waste from the fertilizer manufacturing plant caused a fire hazard in this scenario.

Flammability: The fact that the chemical waste from the fertilizer manufacturing plant caught fire when Remy put out his cigarette indicates that the waste is flammable. Flammable materials are substances that can easily ignite and sustain combustion when exposed to a heat source or open flame.

Ignition Source: Remy's cigarette butt, acting as an ignition source, was sufficient to trigger a fire in the presence of the flammable chemical waste.

Fire Hazard: The term "fire hazard" refers to the potential for a fire to occur due to the presence of materials that can easily catch fire or support combustion. In this case, the chemical waste from the fertilizer plant posed a fire hazard, and its ignition led to a fire.

It's important to handle and dispose of flammable materials and chemical waste in a safe and regulated manner to prevent such incidents and minimize the risk of fires.

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Regardless of an object's position in space, its _______ remains constant.

mass

weight

Answers

It’s mass stays constant .weight changes depending on gravitational force

Answer:

Mass

Explanation:

on usatestprep

In the natural carbon cycle, the ocean influences climate by controlling CO2 levels primarily through ________________ and _______________.

Answers

Answer:

In the natural carbon cycle, the ocean influences climate by controlling CO2 levels primarily through biological activity and massive geological events.

Explanation:

Carbon flows in an interchange across each reservoir called the carbon cycle, which has gradual and rapid components. Any cycle shift which moves carbon from one reservoir places more carbon in another reservoirs.Changes that bring carbon dioxide into the environment contribute to higher Earth temperatures.

The carbon cycle appears to keep the balance over the long term that prohibits all Earth's carbon from atmospheric entry or being deposited entirely in rocks. That equilibrium helps to keep the temperature on Earth fairly stable, just like a thermostat.



Pictured above is the brain viewed at midline at 3 months of age. Differentiate between the functions of the thalamus and the pons of a human brain.
A) The pons plays a key role in sleep and dreaming. The thalamus assists with the storage of long term memories.
B) The pons controls our reactions out of fear and how we react to certain stimuli. The thalamus helps us maintain a constant body temperature.
C) The pons is responsible for relaying messages between the two hemispheres of the brain.
The thalamus plays a role in consciousness and sleep.
D) The pons helps relay messages between the cortex and the cerebellum. The thalamus directs different sensory information to the different parts and lobes of the cortex.

Answers

Answer:

The correct statement is Option D) The pons helps relay messages between the cortex and the cerebellum. The thalamus directs different sensory information to the different parts and lobes of the cortex.

Explanation:

The thalamus is a part of brain which is present between two parts of the brain i. e. cerebral cortex and the midbrain. The function of thalamus is to carry relay motor signals to cerebral cortex while pons is a part of hind brain that carry relay signals from the forebrain to the cerebellum.

Answer:

I think option D) is the answer just took the test on usa test prep.

How far could you speed walk in 10 minutes based on your speed for the 10 m trial show your work?

Answers

I walk very fast so across the school

• What do homeobox genes code for in animals?

Answers

Homeobox genes contain a particular DNA sequence that provides instructions for making a string of 60 protein building blocks (amino acids) known as the homeodomain. Most homeodomain-containing proteins act as transcription factors, which means they bind to and control the activity of other genes.

During cellular respiration, the bonds of food molecules are broken, so energy can be released to fuel other cellular processes. In order for this to occur, which of the following statements must be true?
A.
The new compounds that are formed must be more complex than the food molecules that were broken down.
B.
New compounds with lower-energy bonds must be formed when the high-energy bonds in food molecules are broken.
C.
New compounds with higher-energy bonds must be formed when the low-energy bonds in food molecules are broken.
D.
The energy in the new compounds that are formed must be equal to the energy in the bonds of the food molecules.

Answers

Answer:

Chemical potential energy is stored in glucose's carbohydrate bonds, and these bonds can be broken to fuel the production of ATP. Energy in ATP can then be used to perform cellular work.

Explanation:

Letter:B

Final answer:

During cellular respiration, high-energy bonds in food molecules are broken to form new compounds with lower-energy bonds, like ATP. The energy released during this process powers various cell functions. The correct option is B.

Explanation:

In the process of cellular respiration, the correct option is B: New compounds with lower-energy bonds must be formed when the high-energy bonds in food molecules are broken. This is because energy is released when high-energy bonds in glucose or other food molecules are broken during cellular respiration. The energy that is released is then used to synthesize ATP, a molecule with lower-energy bonds. ATP can then be used by the cell for energy-demanding processes. ATP serves as the 'energy currency' of the cell, providing a ready source of energy that powers numerous cellular functions.

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If short is recessive to tall, provide the symbol representation and the phenotype for each of the genotype for this trait.

Answers

Answer:

Genotype can be described as the genetic constitution present in an organism. Phenotype can be described as the physical characteristics which appear in an organism.

The following symbol representation and phenotypes might arise as a result of these genotypes:

A) homozygous dominant:  The symbol representation will be TT, the phenotype will be tall plants.

B) Heterozygous: The symbol representation will be Tt, the phenotype will be tall plants.

C) Homozygous recessive: The symbol representation will be tt, the phenotype will be short plants.

100 points and brainliest
Name and Describe the 3 Classifications of Protists and What are three different ways that you can describe a protist?

Answers

Answer:

Protists are classified into three categories on the basis of their mode nutrition. They are as under.

1) Algae : Algae is made up of single cell having true nucleus. They are found in those places where water is present. They make their own food like plants.

2) Protozoa : Protozoa is also made of one cell and have true nucleus. They feed on another animals.

3) Fungus like protists : It is a type of protists which feeds on dead bodies of plants and animals.

1) Protists are organisms which are made up of single cell.

2) Protists are eukaryotes i. e. having true nucleus.

3) Protist have some characteristics of animals, plants and fungus.

ABO blood grouping of humans is an example of co-dominance. Homozygotes (IAIA and 1815) express either the A or the B
phenotype. Heterozygotes (1215) express both phenotypes equally and the IAB individual has blood type AB. Blood type O is
the result of the genotype 1°1°: this blood type is considered the recessive trait and is the recessive allele for blood type.
Consider the genetic cross for blood type of these two parents. The father is type A and the mother is type B. Both have the
recessive allele for blood type 0. What is the probability that these parents will have offspring with type A blood?
red flowered plant and white flouvared lant is an ayamole

Answers

Answer:

In ABO blood grouping of humans, when the genotype that determines the type of blood contains the recessive O gene in the parents, a father with a blood type A and a mother with a type B will have a 25% chance of having a offspring with type A blood.

Explanation:

Blood type is determined by the presence or absence of surface antigens A and B.

Type A contains antigen A and its genotype can be A | A or A | O. Type B contains the B antigen, whose genotype can be B | B or B | O. Blood type AB contains both antigens and a single genotypic expression A | B Type O blood lacks surface antigens.

In the case raised, the parents, type A (A | O) and B (B | O) will have an offspring:

Alleles      A         O

B            A|B        B|O

O           A|A        O|O

This shows that the chances of having a offspring with a blood type A is 25%.

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Answer:

25%

Explanation:

i jus know

plants can’t walk and animals can’t use the sun to make energy. agree/disagree? why?

Answers

Answer:

Agree, because plants cannot walk and have roots in the dirt to help them grow as well as photosynthsis. Animals can't do photosynthsis like plants can, animals have to eat to gain energy as well as sleeping.

Explanation:

UIZ
Similarities Among Organisms
Reading Off
Which statement is accurate about the number of genes in different species of living things?
O The more complex a living thing the more chromosomes it is likely to have
The more complex a living thing the fewer chromosomes it is likely to have
O Amouse and a human have about the same number of genes.
O All living things have about the same number of genes.
Please help. I will give brainliest.

Answers

Answer:

The correct option is C) A mouse and a human have about the same number of genes.

Explanation:

The technique of genetic sequencing has enable us to learn and compare thee genomes of different organisms. Genome sequencing proves that the genome of the humans and mice are about 99 percent similar. The number of genes in the mouse genome and the genome of humans is almost equal.

Other options, like option A, cannot be true because many complex organisms have fewer chromosomes than other organisms. For example, there are many simple plants which have more number of chromosomes than the complex humans.  

When too much water has accumulated

Answers

Answer:

Too much water accumulation leads to a condition called as water intoxication.

Explanation:

Drinking too much water leads to a condition called water intoxication or water poisoning. This happens because the concentration of water becomes such abundant in a person's body that it dilutes the concentration of electrolytes like sodium in the blood. This causes a disruption in the functioning of the brain hence leading to the death of the person. Various such scenarios have been observed in athletes drinking too much water.

Why is it necessary for the genetic material in a cell to exist in chromatin form during normal cellular activity, and not in chromosome form?

Answers

Answer/ Explanation:

Chromosomes are highly condensed and compact structures. This means the chromatin (protein plus DNA complex) is hierarchically organised into tight structures through progressive folding of chromatin.

However, this is only the case during cell division. When the cell is in interphase and performing its normal duties, it is in a much more decondensed structure. This is because in order for transcription to occur, the cell needs to be able to access the information in the DNA. For example, transcription factors need to bind at their gene promoters to promote transcription.

When the DNA is folded into chromosomes, cellular factors do not have access to the genetic information due to the physical constraints of the chromatin structure.

will an object denser than water float or sink

Answers

The density of an object determines whether it will float or sink in another substance. An object will float if it is less dense than the liquid it is placed in. An object will sink if it is more dense than the liquid it is placed in.

So an object denser than water will sink

Answer: An object denser than water will sink in water.

Explanation: The ability of an object to float or sink in water depends on its density. An object that is denser or heavier than water will sink in water while an object that is less dense or lighter than water will float in water. For example a piece of stone will sink in water because it is denser than water while a plastic container will float in water because it is less dense than water.

How long does it take minerals to form

Answers

Answer:

I don't think there is any way to know :/ but they can take seconds to years.

If the cooling process is rapid (minutes, hours, days, or years), the components of the minerals will not have time to become ordered and only small crystals can form before the rock becomes solid. The resulting rock will be fine-grained (i.e., crystals less than 1 mm).
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