Question 1

Which of the following best describes the difference between kinetic and potential energy in biological systems?

Accepted Answer

Kinetic energy is the energy of motion, while potential energy is stored energy due to position or structure.

Question 2

Which plane divides the body into anterior and posterior sections?

Accepted Answer

Frontal (coronal) plane

Question 3

A patient is experiencing muscle weakness due to a lack of ATP. Which cellular process is most directly affected?

Accepted Answer

Active transport across the cell membrane

Question 4

Which of the following is a correct complementary base pairing in DNA?

Accepted Answer

Adenine pairs with thymine

Question 5

Which organelle is primarily responsible for producing ATP through cellular respiration?

Accepted Answer

Mitochondrion

Question 6

A solution has a higher concentration of solutes than the cytoplasm of a cell. What type of solution is this?

Accepted Answer

Hypertonic

Question 7

Which of the following best describes facilitated diffusion?

Accepted Answer

Movement of molecules down their concentration gradient with the help of membrane proteins, without energy input

Question 8

During which phase of the cell cycle does DNA replication occur?

Accepted Answer

S phase

Question 9

Which of the following is NOT a function of proteins in the plasma membrane?

Accepted Answer

Storing genetic information

Question 10

A cell placed in a hypotonic solution will:

Accepted Answer

Swell and possibly burst due to water influx

Question 11

Which equation correctly represents the calculation of osmotic pressure ($$\Pi) $$using van't Hoff's law?

Accepted Answer

$$\Pi = iCRT$$

Question 12

Which of the following best describes the function of the Golgi apparatus?

Accepted Answer

Modifies, sorts, and packages proteins and lipids for secretion or delivery to other organelles

Question 13

Which process requires energy input from ATP to move substances across the cell membrane?

Accepted Answer

Active transport

Question 14

Which of the following is a correct description of anabolism?

Accepted Answer

Synthesis of complex molecules from simpler ones, requiring energy

Question 15

Which of the following is a building block of nucleic acids?

Accepted Answer

Nucleotides

Question 16

A patient has a genetic mutation that affects the function of ribosomes. Which cellular process will be most directly impaired?

Accepted Answer

Protein synthesis

Question 17

Which of the following best describes the role of enzymes in biochemical reactions?

Accepted Answer

Enzymes decrease the activation energy, speeding up reactions

Question 18

Which of the following substances can freely diffuse across the phospholipid bilayer?

Accepted Answer

Oxygen

Question 19

Which phase of mitosis is characterized by the alignment of chromosomes along the cell's equator?

Accepted Answer

Metaphase

Question 20

A researcher is studying the effect of substrate concentration on enzyme activity. Which graph best represents the relationship between substrate concentration and reaction rate for an enzyme-catalyzed reaction?

Accepted Answer

A curve that increases rapidly and then levels off as substrate concentration increases

Anatomy & Physiology Study Guide: Basic Principles, Biomolecules, and Cell Structure

Guida di studio - Domande di pratica

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