$$\text{Atomic mass} = \text{Number of protons} + \text{Number of neutrons}$$

Question 1

Which of the following best describes the difference between anatomy and physiology?

Accepted Answer

Anatomy focuses on the structure of body parts, while physiology focuses on how those parts work.

Question 2

Which directional term would best describe the position of the heart relative to the lungs?

Accepted Answer

The heart is medial to the lungs.

Question 3

A patient has a stab wound that penetrates the abdominal cavity. Which serous membrane is most likely to be affected?

Accepted Answer

Peritoneum

Question 4

Which of the following best describes a transverse (horizontal) plane?

Accepted Answer

It divides the body into superior and inferior portions.

Question 5

Which organ system is responsible for transporting nutrients, gases, and wastes throughout the body?

Accepted Answer

Circulatory system

Question 6

Which of the following is a correct example of a positive feedback mechanism?

Accepted Answer

Blood clotting after injury

Question 7

Which of the following is NOT a major class of organic macromolecules?

Accepted Answer

Salts

Question 8

Which type of chemical bond involves the sharing of electron pairs between atoms?

Accepted Answer

Covalent bond

Question 9

A solution with a pH of 3 is considered:

Accepted Answer

Acidic

Question 10

Which of the following best describes the hydrophobic property of molecules?

Accepted Answer

They repel water and do not dissolve in it.

Question 11

Which of the following is a polymer made up of nucleotide monomers?

Accepted Answer

Nucleic acid

Question 12

Which of the following best describes the function of ATP in cells?

Accepted Answer

It provides energy for cellular processes.

Question 13

Which of the following is a correct formula for calculating the atomic mass of an atom?

Accepted Answer

$$	ext{Atomic mass} = 	ext{Number of protons} + 	ext{Number of neutrons}$$

Question 14

A patient is experiencing difficulty breathing due to inflammation of the pleural membranes. Which cavity is most directly affected?

Accepted Answer

Thoracic cavity

Question 15

Which of the following is a correct example of a covalent bond?

Accepted Answer

H2O (water)

Question 16

Which of the following best describes the difference between hydrophilic and hydrophobic molecules?

Accepted Answer

Hydrophilic molecules dissolve in water, while hydrophobic molecules do not.

Question 17

Which of the following is a correct example of a monomer and its corresponding polymer?

Accepted Answer

Nucleotide – nucleic acid

Question 18

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

Accepted Answer

They speed up chemical reactions by lowering activation energy.

Question 19

A patient is diagnosed with metabolic acidosis. Which of the following pH values would most likely be observed in their blood?

Accepted Answer

$$pH = 7.0$$

Question 20

Which of the following is a correct example of a negative feedback mechanism in the human body?

Accepted Answer

Regulation of blood glucose levels by insulin

Anatomy & Physiology: Study Guide for Chapters 1 & 2

Study Guide - Practice Questions