A student is studying the amino acid sequence of a protein shared by four organisms. The student wants to know which organism is most closely related to organism A. The student has data that shows the number of amino acid differences between organism A and each of the other organisms. Study the data in the chart. OrganismNumber of Difference in Amino Acid Sequence from Organism A B3 C5 D1 Which organism does this data suggest is most closely related to organism A?
Answers
Answer:
Organism D.
Explanation:
Amino acids are the monomers of proteins and are linked together by the peptide bond. The protein is obtained from the RNA molecules by the process known as translation.
The amino acid sequence of the proteins can also be used to study the evolutionary relationship between the organisms and the closeness of teh organisms with each other. In the question it is give that organisms A and D has least difference ( 1 amino acid sequence difference) and more related with each other.
Thus, the answer is organism D.
Answer: organism D.
Explanation: i took the test and got it right !
Related Questions
Which is the strip of brain matter near the front of the parietal lobe that is involved in receiving information from the senses?
Answers
Answer:
Somatosensory cortex strip
Explanation:
The parietal lobe is the lobe of the brain preset just behind the frontal lobe and is involved in the sensory perception.
The sensory perception in parietal lobe takes place in the somatosensory cortex which receives the signals from the senses.
The somatosensory cortex is organised in a similar spatial arrangement in the brain as in the body and forms a strip of the sensory cortex.
Thus, Somatosensory cortex strip is the correct answer.
Isometric exercise strengthens muscles without __________.A.contracting muscle fibersB.changing muscle lengthC.burning caloriesD.conscious effort Please select the best answer from the choices provided.
Answers
Answer:
The correct answer is B.changing muscle length
Explanation:
Isometric exercise involves the contraction of a particular muscle group without changing the length of the muscle and the affected joint does not move in the exercise. Isometric exercise helps in muscle strength because they are done in a single position without any movement.
This allows them to improve the strength of a particular position. Some of the isometric exercises are high plank, self-arm wrestling, forearm plank, low squat, etc. So isometric exercise strengthens muscles without changing the length of the muscle.
What did Wallace conclude from observing that the bones in manatee flippers look similar to the bones in a human arm and hand? What did Wallace conclude from observing that the bones in manatee flippers look similar to the bones in a human arm and hand? Manatee finger bones must have an important function, necessary for the animal’s survival. Manatees were specially created in their current form, including the arm and finger bones inside their flippers. Manatees use their flippers like humans use their hands. Manatees’ arm and finger bones are evidence that manatees share a common ancestor with land mammals.
Answers
Answer:
Manatees' arm and finger bones are evidence that manatees share a common ancestor with land mammals.
Explanation:
Manatees were aquatic mammals while humans are mainly land mammals. However, the presence of body parts or organs having similar structures in manatees and humans suggests that these two species of mammals shared a common ancestor. The arms and finger bones were also present in their common ancestors.
Humans and manatees diverged into different directions to become adapted to terrestrial and aquatic lifestyle respectively. Therefore, the forelimbs developed into flippers in manatees while the same do the function of holding objects in humans. These are called homologous structures.
The correct conclusion that Wallace drew from observing the similarity between the bones in manatee flippers and the bones in a human arm and hand is that manatees' arm and finger bones are evidence that manatees share a common ancestor with land mammals.
The observation of similar bone structures in the flippers of manatees and the arms and hands of humans suggests that these two species have a common evolutionary origin. This is consistent with the theory of evolution, which posits that species evolve over time and that similarities in anatomy can be attributed to shared ancestry. The presence of bones that correspond to fingers within the manatee's flippers indicates that their ancestors may have had limbs adapted for life on land, which over time have been modified to suit an aquatic lifestyle. This kind of structural homology is often used as evidence for the process of natural selection and the descent of species from common ancestors.
The other options provided do not align as closely with the evidence from the observed similarities:
- Manatee finger bones must have an important function, necessary for the animal’s survival: While this statement may be true, it does not directly address the evolutionary implications of the bone structure similarities.
- Manatees were specially created in their current form, including the arm and finger bones inside their flippers: This conclusion aligns with creationist views rather than scientific evidence of evolution.
- Manatees use their flippers like humans use their hands: This statement is not necessarily true and does not explain the reason for the bone structure similarities from an evolutionary perspective.
Therefore, the most scientifically supported conclusion is that the similar bones in manatee flippers and human arms and hands are evidence of a common ancestor, reflecting the process of evolutionary adaptation and divergence from a shared lineage.
Cell diffusion is not particularly limited by molecular distribution. The rate considers the external temperature, distance to travel, time, solute’s mass, solvent’s density, and possible imperfections to the membrane. Although the investigation will involve passive transport, it is important to note, within a cell, there are various forms of selectivity. The plasma membrane’s interior, exterior, protein channels, and amphiphilic nature all limit what molecules would enter the cell and how much. Understanding both active and passive transport occur simultaneously enforces molecular transportation to be complex.
Answers
Movement of molecules across the cell membrane occurs by diffusion, active or passive transport.
Explanation:
Cell membrane are specifically penetrable, controlling which substances can go through, just as the amount of every substance can enter or exit at a given time. Specific permeability is fundamental to cells' capacity to get supplements, take out wastes, and keep up a steady inside condition unique in relation to that of the environment (homeostasis). Passive transport doesn't require the cell to consume any ATP and includes a substance diffusing down its concentration gradient across its membrane. In active transport, molecules cross the membrane using ATP.
describe the 4 major subtypes of beta lactam antibiotics.
Answers
Answer
Better lactam antibiotics are antibiotics used in treatment of of severe infection caused by Bacteria.
Beta lactam antibiotics contain beta lactam ring in their molecular structure.
The major subtypes of Beta lactam antibiotics include : Penicillin, cephalosporins, monobactams and carbapenems.
Explanation:
Penicillin : 1) Bind to Penicillin binding sites (PBS)
2) they are vulnerable to The enzyme penicillinase and other b-lactamase
3 ) Penicillin occurs naturally and can also be synthesized
Cephalosporins : 1) they also bind to Penicillin binding sites too
2) just like penicillin, they are vulnerable to B-LACTAMASE, unlike penicillin, they are not vulnerable to penicillinase
Monobactams:
1) binds only to PBP3 but binds weakly to other BPPs
2) is resistant to B-LACTAMASE but is inactivated by ESBLs (Extended spectrum Beta lactamASE ).
Carbapenems :
1) They bind PBPs of most bacteria
2) they are resistant to most B- Lactamase
A coastline on Earth experiences two high and two low tides of about the same height each day. What type of tide is cycling in this location?
Diurnal tides
Mixed dinural tides
Mixed semidiurnal tides
Semidiurnal tides
Answers
Semidiurnal tides occur when a coastline on Earth experiences two high and two low tides of about the same height each day.
Explanation:
If the earth did not have continental, then the predominantly tides would be diurnal tides. This means there would be one high and low tide at a point in the ocean. However, the presence of continents causes the tides to vary across coastal regions of different continents -mixed. This is because the ocean waters are not free-flowing with the moon’s and sun’s gravitational pull. The blockage by continentals to this flow causes mixed diurnal and mixed semi-diurnal tides. Mixed semi-diurnal tides have two high and low tides of unequal amplitudes on a lunar day.
Learn More:
For more on tides check out;
https://brainly.com/question/11442054
https://brainly.com/question/11691712
#LearnWithBrainly
Answer:
D. Semidiurnal tides
Explanation:
During an evening hike, you see a shooting star just like the one pictured here. In which layer of the atmosphere does this shooting star occur? troposphere stratosphere mesosphere thermosphere
The answer is mesosphere
Answers
Answer:
Some people call them shooting stars. Those meteors are burning up in the mesosphere. The meteors make it through the exosphere and thermosphere without much trouble because those layers don't have much air. But when they hit the mesosphere, there are enough gases to cause friction and create heat.
In the mesosphere layer of the atmosphere, this shooting star occurs.
Where do capturing stars occur?A capturing famous person is sincerely a small piece of rock or dust that hits Earth's atmosphere from the area. It moves so fast that it heats up and glows as it moves thru the surroundings. taking pictures of stars is absolutely what astronomers name meteors. maximum meteors deplete inside the atmosphere earlier than they reach the floor.
What's within the mesosphere?The mesosphere's ecosystem is low density and made of oxygen, carbon dioxide, and nitrogen. even though a maximum of the meteors that reach the mesosphere are burned up, some of their fabric hangs round afterward, along with iron and other steel atoms.
Temperature decreases with height for the duration of the mesosphere. The coldest temperatures in Earth's surroundings, approximately -ninety° C. are found near the top of this sediment. The boundary among the mesosphere and the thermosphere is referred to as the mesopause.
The mesosphere could be very essential for earth's protection. The mesosphere burns up most meteors and asteroids earlier than they may be capable of attain the earth's floor
Learn more about mesosphere here: https://brainly.com/question/24925283
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The process by which cells secrete cellular products into the extracellular environment is ________.
Answers
Answer:
Exocytosis.
Hope this helps.
Meiosis results in independent assortment of maternal and paternal chromosomes. If n=3n=3 for a given organism, and there is no crossing over, what is the chance that a gamete will receive only paternal chromosomes?
Answers
Answer:
1/8
Explanation:
In genetics as a whole there are few topics that impinge on human affairs quite so directly as this one. Foremost is the fact that a large proportion of genetically determined ill health in humans is caused by abnormal chromosome numbers. Additionally, manipulation of chromosome number is routinely used by breeders to improve agriculturally important species.
Which is often more predictive of the client's success than the characteristics of his or her illness?
Answers
Answer:
Living environment.
Explanation:
The illness may be defined as any kind of disease or sickness that affects the normal body condition. Bacteria, virus and other disease causing organisms can cause illness.
Both the external and internal environmental factors might responsible for the illness. The positive and healthy living environment is important to keep the individual's healthy and free from any illness. The internal living environment represents the physiological condition of the body and the external living environment represents the physical condition like proper sanitation, proper hygiene is important for the client success.
Thus, the answer is living environment.
A - DNA as the inheritance materials B - RNA as the inheritance materials C - The formation of organic molecules, e.g. nucleic acids, from inorganic precursors
Answers
EXPLANATION:
There are 2 types of nucleic acids: DNA(deoxyribonucleic acid) and RNA(ribonucleic acid).
Living organisms have their genetic material in their DNA. Viruses use RNA as their genetic material but are usually called non-living things( because they can't reproduce without help from a host).
The function of nucleic acids has a progression from DNA to RNA to proteins. This is called the central dogma of molecular biology.
Nucleic acids are formed by a linkage of polynucleotide chains with phosphodiester bonds. These polynucleotide chains are formed from monomers called NUCLEOTIDES.
A nucleotide is made up of 3 parts:
i) a nitrogenous base
ii) a five-carbon sugar
iii) at least one phosphate group.
Answer and Explanation:
DNA as the inheritance materials
Alfred Hershey and Martha Chase state the DNA as genetic material. DNA, or deoxyribonucleic acid, is the natural substance in humans and all other organisms. Every cell in a person's body contains the same DNA. Chromosomes are made up of nucleic acids and proteins and are called hereditary vehicles. ... DNA (deoxyribose nucleic acid) has been found to contain genetic material in all organisms.
RNA as the inheritance materials
• Wandell Stanley, in 1935 proved RNA as genetic material. RNA in humans does not act as genetic material but plays various other roles such as adapters, enzymes, helps in protein synthesis, etc. RNA functions as a messenger for the information to be transferred. The genetic material of organisms and many viruses is DNA. However, some viruses use an alternative type of nucleic acid, ribonucleic acid (RNA), as genetic material. ... RNA has excellent abilities as a genetic molecule; once has to continue the process of hereditary itself.
Nucleic acids
• First, nucleotide are activated, nucleic acid precursors. As such, they are needed for genome replication and transcription of genetic information into RNA. Second, the adenine nucleotide, ATP, is a universal energy currency. Nucleic acids are formed when nucleotide combine through phosphodiester bonds between 5 'and 3' carbon atoms.
Help, earth science!!!
Which of these affect Earth’s climate over a shorter period of time?
A): changes in solar output
B): changes in Earth’s tilt
C): changes in orbital shape
D): changes in ocean currents
Answers
Changes in ocean currents
Explanation:
Ocean currents are a continuous and directional flow of ocean water. This is caused by the forces that act on the water like variations in temperature, the waves breaking, salinity, the wind or even the Coriolis effect. Ocean currents travel thousands of miles, thereby establishing a conveyor belt globally which brings out the different climatic conditions across the world. The ocean acts either above the surface of the ocean or below the surface of the ocean and moves horizontally or vertically.As horizontal currents move towards south or northwards, they carry the warm or cool water over an extended distance. These ocean currents are displaced water that affects the air, by warming or chilling it, and transfers the same effect to the land surface which it blows.Imagine you want to learn more about Mike Smith’s osteosarcoma. How could you use microarray technology to determine which genes have been affected in his tumor cells? What does it tell us if two genes show the same levels of expression in cancer cells and normal cells? What does it tell us if there are some genes that are highly expressed in normal cells but not expressed in cancer cells? What can a DNA microarray teach us about oncogenes and tumor suppressor genes? Use the information you learned from the DNA microarray to write an argument to convince smokers to stop smoking. Be sure to reference any differences you saw in gene expression in smokers and nonsmokers studied in the experiment.
Answers
Explanation:
DNA microarrays exploit the capacity of correlative strands of nucleic acids to base-pair with one another and bind. For instance, ATATGCGC will tie to its supplement (TATACGCG) with a specific liking. This strategy was first utilized by Sol Spiegelman to quantify the homology (closeness) of two different nucleic acids; Spiegelman called the technique "hybridization" of nucleic acids. Afterward, the designers of the DNA microarray specked a variety of DNA duplicates (cDNAs) relating to an enormous number of various mRNAs of known succession onto a glass slide. Since this exhibit was so minor, it was named a microarray We could utilize the microarray technology to see which genes his malignant growth cells have expanded, reduced, turned on, or killed. DNA microarrays can show us what befalls the oncogenes and tumor silencer genes to cause cancer in cells.The ____ relies upon the unique magnetic properties of oxygen in the blood to form representations of the brain.
Answers
Answer: fMRI
Explanation:
fMRI stands for Functional Magnetic Resonance Imaging. It is an imaging scan that helps to evaluate the activities of the brain through changes that occurs in line with the flow of blood, and this is because there is a connection between neuronal activation and blood flow in the cerebral. It must be noted that the rate of blood flow in a particular area of the brain increase when such part is under use.
When asked to remember life events, vivid memories from which age range are most likely to be reported?
Answers
Answer:
Ages that come five years from the age the person is now.
Explanation:
Ages that come five years from the age the person is now have more vivid memories in people.
For example, if the person has 20 years, he would remeber more cleary from when he was 15 years old to his current age.
This is because the brain retains more information from the previews experiences, having all that memories more vivid.
This happens in any age.
Answer:
10 to 30 years
Explanation:
Studies have shown that adults, the period from 10 to 30 years of age produces reminder of the most accounts of life, the clear and intense memories, and the most important memories.
You begin your investigation by examining the chromosomes of the two athletes with a karyotype analysis (a procedure that isolates an entire set of chromosomes when they are condensed for mitosis). the results are shown below, along with control samples from a normal female and a normal male.
Answers
The barr bodies will be present in only female control, and absent in all the rest. While SRY gene will be absent in only the female control and present in all rest.
Explanation:The Barr bodies are the dark bodies that are seen inside the nucleus of WBCs in females. These are actually the condensed X chromosomes which is seen in females as they have 2 X chromosomes and one of them remain silent and is seen as Barr bodies.
The SRY gene is actually the TDF gene or Testis Determining factor which secretes a protein called the Sex determining Region Y protein. Its present in the Y chromosome of males and one of the very few functional genes of Y chromosome.
In the given Karyotype of the 2 athletes, we can see that both the athletes are males as they are having one X chromosome and one Y chromosome. So they are males. And hence, both of them will be having the SRY gene and in both of them, Bare bodies will be absent.
Without making any swimming movements, what percentage of the human body would be above the surface in the Dead Sea (a body of water with a density of about 1230 kg/m3) in each of these cases?
Answers
Question complete statement:
The average human has a density of 945 kg/m3 after inhaling and 1020 kg/m3 after exhaling. Without making any swimming movements, what percentage of the human body would be above the surface in the Dead Sea (a body of water with a density of about 1230 kg/m3) in each of these cases?
Answer:
P(in) = 23.17 %
P(ex) = 17%
Explanation:
Given data:
Density after inhaling = 945 kg/m3
Density after exhaling = 1020 kg/m3
Density of water body = 1230 kg/m3
% of human body above the surface in the dead sea = ?
Formula:
The buoyant force is equal to the weight of the body.
P (f) x g x V(f) = P(o) x g x V(o)
Volume of the fluid displaced corresponds to volume of the object beneath the fluid level.
For inhaling:
[tex]\frac{V(DS)}{V(in)}[/tex] = [tex]\frac{P(in)}{P(DS)}[/tex]
V(in) = P(in) / P(DS) x V(DS)
= 945 / 1230 x V(DS)
V(in) = 0.7683 x V(DS)
Calculate what percentage of the human body would be above the surface in the dead sea.
P(in) = (1 - 0.7683) x 100
= 0.2317 x 100
P(in) = 23.17 %
For exhaling:
V(ex) = P(ex) / P(DS) x V(DS)
= 1020 / 1230 x V(DS)
= 0.8292 x V(DS)
Calculate what percentage of the human body would be above the surface in the dead sea
P(ex) = (1 - 0.8292) x 100
= 0.17 x 100
P(ex) = 17%
A biologist ground up some plant leaf cells and then centrifuged the mixture to fractionate the organelles. Organelles in one of the heavier fractions could produce ATP in the light, while organelles in the lighter fraction could produce ATP in the dark. The heavier and lighter fractions are most likely to contain, respectively
Answers
Answer:
Chloroplast and mitochondria respectively
Explanation:
The chloroplast is the organelle wherein ATP is produced by the process of photophosphorylation during the light-dependent phase of photosynthesis. The transfer of electrons from PSII to PSI via electron transport chain generates a proton concentration gradient across the thylakoid membrane which in turn drives the process of ATP synthesis.
Mitochondria can produce ATP in the absence of light by the process of oxidative phosphorylation. Oxidation of NADH and FADH2 via electron transport chain generates a proton concentration gradient across the inner membrane of mitochondria which in turn drives the process of ATP synthesis
If a solution is hypotonic, it will cause the cell to swell.a. No, the ions will evenly distribute themselves between the surrounding solution and the inside of the cell. b. Yes, the solution is hypotonic, causing the cell to burst. c. No, the solution is isotonic. d. Yes, the solution is hypertonic, causing the cell to swell.
Answers
Answer: Option B) Yes, the solution is hypotonic, causing the cell to burst.
Explanation:
Because a hypotonic solution is of lower concentration to its surrounding, a cell placed in such solution absorbs the content of the solution, swells and then burst due to the uncontrolled inflow of the solution through its cell membrane.
Thus, the answer is Yes, the solution is hypotonic and cause the cell to burst.
Dentinogenesis imperfecta is a rare, autosomal, dominantly inherited disease of the teeth that occurs in about one in 8000 people (Witkop, 1957). The teeth are somewhat brown in color, and the crowns wear down rapidly. Assume that a male with dentinogenesis imperfecta and no family history of the disease marries a woman with normal teeth. What is the probability that: a.their first child will be a girl with dentinogenesis imperfecta?
Answers
Answer:
The answer is 25%.
Explanation:
Let's say that x represents the gene for the disease. Dentinogenesis Imperfecta is an autosomal dominant disease which means one must possess either a genotype of Xx, one dominant and one recessive, or XX, two dominant genes for the disease to be observed.
Since the individual has no history of the said disease, we can say that his genotype regarding the disease must be Xx which means it has a 50% chance of affecting the child.
The probability of their first child being a girl is 50% and the probability of the child inheriting the disease is also 50% so we can calculate that the probability of both of these conditions being true at the same time is 25%.
I hope this answer helps.
A researcher tests whether dosage level of some drug (low, high) causes significant differences in health. What is this type of study?
Answers
Answer:
If a researcher is studying on the dosage level of some drugs, He is doing a PHARMACOLOGICAL studies
Explanation:
Pharmacology is simply the study of how drugs interact with the body and how the body responds to the drugs. It is simply the study of what drugs does to a body and what a body does to the same drug. Pharmacology is divided into two parts ; Pharmacodynamic and Pharmacokinetics
Cellular signaling follows a cascade of events and has multiple points of regulation. Which of the following could be a reason(s) why a signalling cascade is interrupted, or turned 'off', once it has been turned 'on'?
A. The ligand is prevented from reaching the binding site.
B. A chemical modification occurred on serine, threonine, or tyrosine side chains to turn on/off proteins.
C. A protein gets tagged with an ubiqutin group and gets degraded.
D. A G-binding protein binds to a GTP molecule.
E. A, B and C only.
F. A and B only.
G. All of the above.
Answers
Answer:
A,B and c only
Explanation:
Cell signalling is the transfer of information from one cell to another.
It is important for growth, development and immunity.
An error can lead to serious problems such as diabetes and cancer.
Therefore this process is highly regulated. A signal in the cascade can be interrupted or turned off when;
The ligand is prevented from reaching the binding sitesA chemical modification occurred on serine, threonine, or tyrosine side chains to turn on/off proteins. A protein gets tagged with an ubiqutin group and gets degraded.Increasing muscle mass and decreasing fat content in your body can increase ones use of energy. Why is this?
Answers
Explanation:
Muscle tissue is metabolically more dynamic and burn a larger number of calories than fat tissue. The more muscles you have, the greater your resting energy expenditure, which implies that your body burns more calories while sitting idle
PCR (select one):
a. Is used to transcribe specific genes.
b. Amplifies specific DNA sequences.
c. None of these are correct.
d. Uses a DNA polymerase that denatures at 55 degrees Celsius.
e. Uses primers that are added only to one of the two template strands.
Answers
Answer: Option B) Amplifies specific DNA sequences.
Explanation:
Polymerase chain reaction (PCR) refers to the selective and repetitive duplication of a specific DNA sequence. It involves the following: heat, an enzyme called thermos aquaticus and annealing.
During winter, tree sap can sometimes freeze and cavitation (the formation of an air pocket) may occur. Which one of the following mechanisms of sap transport would you expect to be most immediately affected by cavitation? 1. symplast function
2. pressure flow (mass flow)
3. cohesion transpiration
4. root pressure
5. active transport
Answers
Answer:
Option 3. cohesion transpiration is the correct answer.
Explanation:
Plants release water through transpiration while cohesion is responsible for moving more water throughout the xylem. When the water evaporate through the stomata, more water is pulled from roots into stem and eventually reach the leaf this process is called transpiration-cohesion theory. (More explanation in attached Picture)
All strains of human papillomavirus (HPV) are capable of integrating their double-stranded DNA viral genome into host basal cells while waiting for keratinocyte differentiation before initiating viral replication for virion shedding. As a consequence of the integrated genome, HPV strains that more readily transform host cells are more likely to cause an increased expression of viral ________.a. tumor suppressor genes.
b. oncogenes.
c. lytic genes.
d. lysogeny genes.
Answers
Answer:
Option B, Oncogenes
Explanation:
Human papillomavirus (HPV) is a virus that has double stranded DNA and it also has a tendency of entering into the cytoplasm of the host cell without un-coating itself. Since it is a virus, it replicates with in the nucleus of the host DNA polymerase until the basal cells differentiate into keratinocytes. Keratinocytes are keratin producing epidermal cells which hinders the transmission of HPV hence its shedding its essential for transmission of HPV into new host. Over-shedding leads to abnormal expression of HPV due to change in normal expression pattern.
Hence, option B is correct
The proposal that the global environment has been profoundly changed since life appeared on Earth, and that the presence of living organism's changes the environment to improve living conditions is associated with _________.
Answers
Answer: Gaia hypothesis
Explanation: Gaia hypothesis conceived by a chemist James E. Lovelock and biologist Lynn Margulis was introduced in the early 1970s.
They hypothesis states that Earth and its biological systems behave as a huge single entity and that this entity has closely controlled self-regulatory negative feedback loops that keep the conditions on the planet within boundaries that are favorable to life.
This hypothesis has it that living organisms interact with their inorganic environment to form a working and self-regulating, complex system which makes life and conditions for life on earth to continue favourably and perpetually
The Hardy-Weinberg principle is written as an equation: p2 + 2pq +q2 = 1. What does the q represent?
A.
frequency of the dominant allele
B.
the size of the gene pool
C.
frequency of the recessive allele
D.
the size of the population
Answers
Answer:
I think its D
Explanation:
A biological theorist studies a psychological disorder through the interconnectivity of an entire network of brain structures. This shows the recent belief that the key to psychological disorders lies in:
Answers
Answer:
Hormonal Imbalances generated by irregular stimulus or impulses of brain
Explanation:
According to the recent research, most of the patients with serious psychological disorders have severe imbalances of hormones in their body. Most of them also have a history of trauma to head and spine. When a part of brain gets damaged, it may become dead (under-active) or may become overactive and hormonal instability have serious psychological complications.
The biological perspective suggests psychological disorders are rooted in biological phenomena such as neurotransmitter imbalances and genetic factors. The bio-psycho-social model complements this by considering psychological stressors and social factors in the development of mental illnesses, highlighting an integrated approach to understanding and treating these conditions.
Explanation:The biological theorist's approach to studying psychological disorders through brain structure interconnectivity aligns with current beliefs in the biological perspective of psychological disorders. This perspective posits that conditions like depression and schizophrenia are associated with neurotransmitter imbalances and genetic factors, along with abnormalities in brain structure and function. This emphasizes the importance of biological bases in understanding psychological disorders. Furthermore, the bio-psycho-social model complements this by suggesting an integrated approach, acknowledging that while biological factors set the stage for disorders, psychological stressors and social factors also play vital roles in triggering and shaping these conditions. This comprehensive model encompasses genetic predispositions, stress responses, negative thinking patterns, hormones, neurotransmitter function, and sociocultural influences, thereby providing a more holistic understanding of mental illness.
To cite an example, schizophrenia's etiology includes genetic vulnerability paired with environmental and psychosocial stresses. Other mood and anxiety disorders also arise from a complex interplay between biological predispositions such as hormones, individual thought processes, and social interactions. Thus, the bio-psycho-social model serves as a framework for assessing the causes and treatments of disorders, illustrating the intricate network of factors that contribute to mental health conditions.
The first-pass effect occurs with orally administered drugs because a. their absorption is slowed by food. b. drug absorbed into the bloodstream from the stomach goes to the liver on the way to the general circulation. c. a drug must first survive the acidic environment of the stomach. d. salivary enzymes in the mouth begin the process of metabolism.
Answers
Answer: Option B
Explanation:
The first -pass effect occurs with the orally passed drugs. The drugs that are taken orally moves to different parts of the body.
The drug administered inside the body is reduced in concentration before it reaches the systematic circulation of the body.
It can be defined as the loss of fraction of drug during the process of absorption which is related to liver and gut wall.
Hence, the correct answer is option B