Question 1

Which of the following best describes the process of osmosis in a cell?

Accepted Answer

Movement of water from regions of lower concentration of solute to regions of higher concentration of solute across a selectively permeable membrane.

Question 2

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

Accepted Answer

It will swell and may burst due to water entering the cell.

Question 3

Which equation correctly represents the relationship between osmotic pressure and solute concentration?

Accepted Answer

$$\Pi = iCRT$$

Question 4

Which anatomical position is described as 'lying face up'?

Accepted Answer

Supine

Question 5

Which of the following is a function of the integumentary system?

Accepted Answer

Acts as a barrier against pathogens, abrasions, fluid loss, and chemical attacks.

Question 6

A patient has a blood pH of 7.1. Which term best describes their condition?

Accepted Answer

Acidosis

Question 7

Which of the following best describes facilitated diffusion?

Accepted Answer

Carrier-mediated membrane passage that does not require energy.

Question 8

Which organ system is primarily responsible for the synthesis of vitamin D3?

Accepted Answer

Integumentary system

Question 9

Which of the following is NOT a function of the skeletal system?

Accepted Answer

Regulation of blood glucose levels

Question 10

A patient is experiencing muscle weakness due to low calcium levels. Which system is most directly involved in maintaining calcium homeostasis?

Accepted Answer

Endocrine system

Question 11

Which of the following best describes the role of the nervous system in homeostasis?

Accepted Answer

It detects changes in the environment and initiates appropriate responses.

Question 12

Which of the following is a correct example of active transport?

Accepted Answer

Sodium-potassium pump moving ions against their concentration gradient using ATP.

Question 13

Which equation best represents the calculation of concentration in a solution?

Accepted Answer

$$C = \frac{m}{V}$$

Question 14

Which of the following is a function of the lymphatic system?

Accepted Answer

Defending the body against infection and maintaining fluid balance.

Question 15

Which of the following best describes homeostasis?

Accepted Answer

The maintenance of a stable internal environment regardless of external conditions.

Question 16

Which of the following is a correct anatomical position?

Accepted Answer

Standing upright, facing forward, arms at sides, palms forward, feet shoulder-width apart.

Question 17

Which of the following is a function of the muscular system?

Accepted Answer

Facilitating movement and maintaining body structure.

Question 18

Which of the following is true about filtration in the body?

Accepted Answer

It involves the movement of smaller molecules through porous membranes, such as capillary walls.

Question 19

Which of the following is a correct example of simple diffusion?

Accepted Answer

Oxygen moving from the alveoli into the blood.

Question 20

A cell is placed in an isotonic solution. What will happen to the cell?

Accepted Answer

There will be no net movement of water, and the cell will remain unchanged.

Core Concepts in Anatomy & Physiology: Structure, Function, and Major Body Systems

Study Guide - Practice Questions