Docsity
Log inSign up
Docsity
Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity

Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan

Guidelines and tips
Guidelines and tips
Sell on Docsity
Sell on Docsity
Log inSign up

Prepare for your exams

Study with the several resources on Docsity

Find documents

Prepare for your exams with the study notes shared by other students like you on Docsity

Search Store documents

The best documents sold by students who completed their studies

Search through all study resources
Docsity AINEW

Summarize your documents, ask them questions, convert them into quizzes and concept maps

Explore questions

Clear up your doubts by reading the answers to questions asked by your fellow students

Earn points to download

Earn points by helping other students or get them with a premium plan

Share documents
download point icon20 Points

For each uploaded document

Answer questions
download point icon5 Points

For each given answer (max 1 per day)

All the ways to get free points
Get points immediately

Choose a premium plan with all the points you need

Study Opportunities

Choose your next study program

Get in touch with the best universities in the world. Search through thousands of universities and official partners

Community

Ask the community

Ask the community for help and clear up your study doubts

University Rankings

Discover the best universities in your country according to Docsity users

Free resources

Our save-the-student-ebooks!

Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors

From our blog

Exams and Study
Go to the blog

AAMC EXAM 2023/2024 WITH 100% CORRECT ANSWERS, Exams of Biology

Athens State UniversityBiology
Prof. Salvy Yanchy

Le Chatelier's Principle - correct answer States that if a stress is applied to a system at equilibrium, the system shifts in the direction that relieves the stress. Bose-Einstein Principle - correct answer states that a collection of atoms cooled close to absolute zero will coalesce into a single quantum state Heisenberg uncertainty principle - correct answer States that one cannot known both the momentum and position of an object with absolute certainty Pauli Exclusion Principle - correct answer States that two or more identical fermions, e.g. electrons, cannot occupy the same quantum state The reaction between NADH and ubiquinone is exergonic, but the reaction, when catalyzed by Na+-NQR, does not generate much heat in vivo. What factor accounts for this difference? - correct answer The movement of a charged particle against its concentration gradient is energetically costly. Coupling the two processes: the redox reaction between NADH and ubiquinone and the movement of

Typology: Exams

2023/2024

Available from 12/26/2023

YANCHY
YANCHY 🇺🇸

3 documents

1 / 8

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
AAMC EXAM 2023/2024 WITH 100%
CORRECT ANSWERS
Le Chatelier's Principle - correct answer States that if a stress is applied to a system at equilibrium, the
system shifts in the direction that relieves the stress.
Bose-Einstein Principle - correct answer states that a collection of atoms cooled close to absolute zero
will coalesce into a single quantum state
Heisenberg uncertainty principle - correct answer States that one cannot known both the momentum
and position of an object with absolute certainty
Pauli Exclusion Principle - correct answer States that two or more identical fermions, e.g. electrons,
cannot occupy the same quantum state
The reaction between NADH and ubiquinone is exergonic, but the reaction, when catalyzed by Na+-NQR,
does not generate much heat in vivo. What factor accounts for this difference? - correct answer The
movement of a charged particle against its concentration gradient is energetically costly. Coupling the
two processes: the redox reaction between NADH and ubiquinone and the movement of Na+ up a
concentration gradient makes the overall process less exothermic.
If all else is held constant, which of the following changes would NOT double the volume of a gas -
correct answer Based on Boyle's Law, P is inversely proportional to volume, thus, doubling the pressure
of a gas sample will decrease, not increase, the volume.
What is the molecular formula of the heterocyclic aromatic compound pyrrole? - correct answer
C4H5N
How many Liters are in 1 mol of gas? - correct answer 22.4 L
How does fluorescence occur? - correct answer Fluorescence can occur when the absorbed radiation
has a photon energy larger than the photon energy of the radiation emitted through fluorescence.
pf3
pf4
pf5
pf8

Partial preview of the text

Download AAMC EXAM 2023/2024 WITH 100% CORRECT ANSWERS and more Exams Biology in PDF only on Docsity!

AAMC EXAM 2023/2024 WITH 100%

CORRECT ANSWERS

Le Chatelier's Principle - correct answer States that if a stress is applied to a system at equilibrium, the system shifts in the direction that relieves the stress. Bose-Einstein Principle - correct answer states that a collection of atoms cooled close to absolute zero will coalesce into a single quantum state Heisenberg uncertainty principle - correct answer States that one cannot known both the momentum and position of an object with absolute certainty Pauli Exclusion Principle - correct answer States that two or more identical fermions, e.g. electrons, cannot occupy the same quantum state The reaction between NADH and ubiquinone is exergonic, but the reaction, when catalyzed by Na+-NQR, does not generate much heat in vivo. What factor accounts for this difference? - correct answer The movement of a charged particle against its concentration gradient is energetically costly. Coupling the two processes: the redox reaction between NADH and ubiquinone and the movement of Na+ up a concentration gradient makes the overall process less exothermic. If all else is held constant, which of the following changes would NOT double the volume of a gas - correct answer Based on Boyle's Law, P is inversely proportional to volume, thus, doubling the pressure of a gas sample will decrease, not increase, the volume. What is the molecular formula of the heterocyclic aromatic compound pyrrole? - correct answer C4H5N How many Liters are in 1 mol of gas? - correct answer 22.4 L How does fluorescence occur? - correct answer Fluorescence can occur when the absorbed radiation has a photon energy larger than the photon energy of the radiation emitted through fluorescence.

A major obstacle to obtaining useful energy from a nuclear fusion reactor is containment of the fuel at the very high temperatures required for fusion. The reason such high temperatures are required is to: - correct answer enable reactants to approach within range of the strong nuclear force. Enantiomers can exhibit a difference in which chemical or physical property - correct answer Enantiomers have the same physical and chemical properties. They differ only in their three dimensional arrangement of atoms and their interactions with other chiral molecules. They can differ in their smell due to interacting differently with chiral odorant receptors. Blood Flow Speed - correct answer V= Q/A A= Pi*r^ Which of the following species has an electron configuration equivalent to that of a noble gas A. Ca2+ B. Cu2+ C.O D.H - correct answer Ca2+ has lost its valence electrons and thus attains the electronic configuration of the previous noble gas (Ar). Copper has 11 outer electrons. Loss of 2 electrons. positive cooperativity - correct answer the first substrate changes the shape of the enzyme allowing other substrates to bind more easily A 2 kg mass and a 5 kg mass are connected by a massless cord suspended over a massless and frictionless pulley. If the acceleration due to gravity is g, what will be the acceleration of the masses after they are released from rest? - correct answer According to Newton's second law, the net force acting on the 5-kg mass is given by the expression Fnet= 5 kg × a1 = 5 kg × g - T, where a1 is the acceleration after the release and T is the tension in the cord. The net force acting on the 2-kg mass is given by the expression Fnet= 2 kg × a2 = 2 kg × g - T. Because the two masses move simultaneously but in opposite directions after they are released, a1 = -a2 = a. Substituting the expression T = 5 kg × (g - a) into the equation of motion of the 2-kg mass yields -2 kg × a = 2 kg × g - 5 kg × (g - a) = -3 kg × g + 5 kg × a. Then 7 kg × a = 3 kg × g, hence a = 3g/7.

adaptive immunity - correct answer the ability to recognize and remember specific antigens and mount an attack on them e.x., T and B cells Which metabolic process are GI tract bacteria directly involved? - correct answer Conversion of PS into short chain fatty acids Which amino acid exhibits a beta-branched side chain? - correct answer Isoleucine contains a branched side chain In contrast to chemical messengers in classical endocrine signaling systems, chemical messengers in paracrine and autocrine signaling systems are: - correct answer not transported by blood vessels. Which membrane transporter is electrogenic and translocates a net charge across the membrane? A. Na+− H+ exchanger B. Na+−C- cotransporter C. Na+−glucose cotransporter D. GLUT2 facilitative glucose transporter - correct answer The Na+-glucose cotransporter transports Na+ cations and glucose into the cell. This process is electrogenic, as it results in the net movement of positively charged molecules into the cell. Which type of cells have a plasma membrane, lack a nucleus, lack most organelles, and are shaped like a flat disc with a concave center? - correct answer Erythrocytes G protein-coupled receptor - correct answer A signal receptor protein in the plasma membrane that responds to the binding of a signaling molecule by activating a G protein. gel filtration chromatography - correct answer separates proteins based on size Ion exchange chromatography - correct answer molecules separated based on net surface charge

Which type of reaction has a Keq > 1 and is kinetically fast? A.Endergonic with high activation energy level B.Endergonic with low activation energy level C.Exergonic with high activation energy level D.Exergonic with low activation energy level - correct answer D. Exergonic with low activation energy level. A reaction that has a Keq > 1 is exergonic and a low activation energy results in fast reaction kinetics Insulin - correct answer Insulin is secreted in response to high blood glucose levels by pancreatic beta cells Glucagon - correct answer Glucagon is secreted in response to low blood glucose levels from pancreatic alpha cells. Contraction of the diaphragm results in: - correct answer decreased intrathoracic pressure and inhalation. In an enzyme-catalyzed reaction where enzyme concentration is held constant and substrate concentration is relatively low, which kinetic parameter will increase with the addition of more substrate? - correct answer V0. V0 is the initial velocity of an enzymatic reaction. At low concentrations of substrate and constant enzyme concentration, adding more substrate will increase V0 until the maximal velocity is reached. Km - correct answer Substrate concentration at 1/2 Vmax Kcat - correct answer turnover number (molecules catalyzed per second in optimal conditions) Vmax / [E] Vmax - correct answer maximum initial velocity or rate of an enzyme-catalysed reaction.

Cones - correct answer Cones are the photoceptors responsible for color vision, and are mainly located in the fovea of the eye. Rods - correct answer retinal receptors that detect black, white, and gray; necessary for peripheral and twilight vision, when cones don't respond. They are located at the periphery of the eye. Horizontal mobility - correct answer Horizontal mobility would represent an individual's change of role within the same social class Vertical mobility - correct answer Vertical mobility indicates a change in someone's socioeconomic status Intergenerational mobility - correct answer Intergenerational mobility refers to generational change in socioeconomic status across different generations. Structural mobility - correct answer Structural mobility refers to social mobility as a result of macro- social changes, generally impacting a significant part of the population. Medicalization - correct answer Medicalization refers to the recategorization of a condition as a medical problem that requires diagnosis and treatment by medical experts. Social facilitation - correct answer Social facilitation occurs when the presence of an audience improves performance on a well-practiced task. Looking-glass self - correct answer Looking-glass self refers to an individual basing their sense of self on how they think others perceive them. Stimulus generalization - correct answer Stimulus generalization refers to a stimulus-controlled behavior occurring in response to stimuli that physically resemble the original controlling stimulus. stimulus discrimination - correct answer Stimulus discrimination refers to a stimulus-controlled behavior occurring in response specifically to the original controlling stimulus without being elicited by stimuli that resemble the original stimulus.

Secondary reinforcement - correct answer Secondary reinforcers are stimuli that have acquired reinforcing qualities by being associated with primary reinforcers. In operant conditioning, partial reinforcement, rather than continuous reinforcement, leads to a response that is: - correct answer Slower to acquire and more resistant to extinction. scapegoat - correct answer Scapegoating refers to erroneously assigning blame to an identifiable source, often when the real cause is abstract, such as globalization. The categorization aspect of the cognitive functioning assessment involves which type of memory? - correct answer Semantic memory is memory for facts and knowledge. This is the memory system used for a categorization task which requires participants to use pre-existing knowledge to sort the items. The morphological changes associated with elevated stress or exercise are examples of: - correct answer neural plasticity Neural plasticity - correct answer Neural plasticity refers to the ability of the nervous system to modify itself, functionally and structurally, in response to experience or injury. Hawthorne effect - correct answer The Hawthorne effect refers to the change in the participants' behavior when they know their behavior is being observed, including via self-report