$\text{Mass number} = \text{Number of protons} + \text{Number of neutrons}$

Question 1

Which of the following best describes the function of the skeletal system in the human body?

Accepted Answer

It provides support, protects internal organs, produces blood cells, and stores calcium salts.

Question 2

A patient is experiencing difficulty regulating their body temperature and retaining water. Which organ system is most likely affected?

Accepted Answer

Integumentary system

Question 3

Which anatomical plane divides the body into anterior and posterior portions?

Accepted Answer

Frontal (coronal) plane

Question 4

A solution has a pH of 5. Which of the following statements is correct?

Accepted Answer

It is an acidic solution.

Question 5

Which type of chemical bond involves the sharing of electrons between atoms?

Accepted Answer

Covalent bond

Question 6

A cell is placed in a hypertonic solution. What will happen to the cell?

Accepted Answer

Water will leave the cell, causing it to shrink.

Question 7

Which organelle is responsible for producing the bulk of ATP by oxidative catabolism?

Accepted Answer

Mitochondrion

Question 8

Which of the following is a correct sequence for the levels of structural organization in the human body?

Accepted Answer

Chemicals > Cells > Tissues > Organs > Organ systems > Organisms

Question 9

Which of the following best describes a negative feedback loop?

Accepted Answer

The response reverses the change in a regulated variable.

Question 10

A molecule of water is described as:

Accepted Answer

An inorganic compound with a polar covalent bond.

Question 11

Which of the following best explains why hydrogen bonds are important in the human body?

Accepted Answer

They are responsible for the surface tension of water.

Question 12

Which of the following is true regarding isotopes?

Accepted Answer

Isotopes have the same atomic number but different mass numbers.

Question 13

Which process requires energy in the form of ATP to move substances against their concentration gradient?

Accepted Answer

Active transport

Question 14

A patient has a blood pH of 7.2. Which of the following best describes their condition?

Accepted Answer

Their blood is acidic.

Question 15

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

Accepted Answer

$	ext{Mass number} = 	ext{Number of protons} + 	ext{Number of neutrons}$

Question 16

Which of the following best describes the anatomical position?

Accepted Answer

Body standing upright, feet shoulder-width apart, arms at the sides, palms facing forward.

Question 17

Which organ system is primarily responsible for immunity and returning excess fluid to the cardiovascular system?

Accepted Answer

Lymphatic system

Question 18

Which of the following is a function of adipose tissue?

Accepted Answer

Shock absorption and energy storage

Question 19

Which of the following best describes the process of dehydration synthesis?

Accepted Answer

Building polymers from monomers by removing water.

Question 20

A patient is diagnosed with a homeostatic imbalance. Which of the following is a possible consequence if the imbalance is not corrected?

Accepted Answer

The patient may develop disease or die.

Anatomy & Physiology: Essential Concepts and Terminology

Study Guide - Practice Questions