Question 1

Which of the following best describes the relationship between structure and function in anatomy and physiology?

Accepted Answer

Structure determines function; the physical form of a body part enables its role.

Question 2

A patient is unable to maintain a stable internal body temperature after suffering a head injury. Which concept is most directly affected?

Accepted Answer

Homeostasis

Question 3

Which of the following is an example of negative feedback in homeostatic regulation?

Accepted Answer

Shivering to increase body temperature when cold

Question 4

Which of the following best explains why water is considered a 'universal solvent' in biological systems?

Accepted Answer

Water forms hydrogen bonds with polar molecules, allowing many substances to dissolve.

Question 5

A solution has a pH of 6. What is the concentration of hydrogen ions ($$[H^+]) $$compared to a solution with a pH of 8?

Accepted Answer

$$[H^+] is 100 $$times higher

Question 6

Which organelle is primarily responsible for ATP production in the presence of oxygen?

Accepted Answer

Mitochondrion

Question 7

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

Accepted Answer

Enzymes lower the activation energy and are not altered by the reaction.

Question 8

A red blood cell is placed in a hypotonic solution. What will most likely happen to the cell?

Accepted Answer

It will swell and possibly burst due to water gain (hemolysis).

Question 9

Which of the following is a property of phospholipids that is essential for cell membrane structure?

Accepted Answer

They have hydrophilic heads and hydrophobic tails.

Question 10

Which process describes the movement of water across a selectively permeable membrane from an area of high water concentration to low water concentration?

Accepted Answer

Osmosis

Question 11

Which of the following best describes the primary function of the rough endoplasmic reticulum (RER)?

Accepted Answer

Protein synthesis and modification

Question 12

Which tissue type is specialized for contraction and movement?

Accepted Answer

Muscle tissue

Question 13

Which of the following is a function of the Golgi apparatus?

Accepted Answer

Protein folding and packaging for export

Question 14

Which of the following best describes the difference between anabolism and catabolism?

Accepted Answer

Anabolism builds molecules; catabolism breaks down molecules.

Question 15

Which of the following is true about DNA and RNA?

Accepted Answer

DNA is double-stranded and contains thymine; RNA is single-stranded and contains uracil.

Question 16

Which of the following best explains why proteins denature at high temperatures?

Accepted Answer

High temperatures disrupt hydrogen bonds and other interactions, altering protein shape.

Question 17

A patient is given intravenous fluids that are not isotonic to their blood plasma. What is a possible consequence?

Accepted Answer

Red blood cells may shrink or swell, disrupting oxygen transport.

Question 18

Which of the following is a function of nervous tissue?

Accepted Answer

Transmission of electrical impulses

Question 19

Which of the following best describes the role of buffers in the human body?

Accepted Answer

Buffers stabilize pH by removing or replacing hydrogen ions ($$H^+).$$

Question 20

Which of the following is a correct sequence of levels of organization in the human body, from simplest to most complex?

Accepted Answer

Chemical, cell, tissue, organ, organ system, organism

Anatomy & Physiology I: Foundations, Chemistry, Cells, and Tissues

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