Question 1

Which of the following best describes the principle of complementarity in Anatomy & Physiology?

Accepted Answer

Anatomical structure always reflects its function; what a structure can do depends on its specific form.

Question 2

According to the cell theory, which statement is correct?

Accepted Answer

Cells are the basic structural and functional units of living organisms.

Question 3

A patient is diagnosed with anemia due to a lack of red blood cells. Which cell function is most directly impaired?

Accepted Answer

Transport of oxygen

Question 4

Which of the following is NOT one of the four chemical concepts of physiology?

Accepted Answer

Cells are the basic unit of life

Question 5

A macrophage is a type of cell that specializes in which function?

Accepted Answer

Phagocytosis of pathogens

Question 6

Which equation best represents the relationship between surface area and volume in cells, explaining why cells are small?

Accepted Answer

$$SA = 6a^2$, V$$ = $$a^3$$ for a cube$

Question 7

Which of the following best explains why phospholipids are critical to cell membrane structure?

Accepted Answer

Their amphipathic nature allows formation of bilayers with hydrophobic and hydrophilic regions.

Question 8

A nerve cell transmits an impulse to a muscle cell, causing contraction. Which concept does this scenario best illustrate?

Accepted Answer

Cell specialization and communication

Question 9

Which of the following is a function of plasma membrane proteins?

Accepted Answer

Acting as receptors for signaling molecules

Question 10

A cell is observed to secrete insulin in response to increased blood glucose. Which process is this an example of?

Accepted Answer

Exocytosis

Question 11

Which of the following best describes homeostasis?

Accepted Answer

The maintenance of a stable internal environment despite external changes.

Question 12

Which cell type is primarily responsible for immune defense by producing antibodies?

Accepted Answer

B lymphocyte

Question 13

Which of the following is a direct consequence of the cell theory?

Accepted Answer

All living things are composed of cells.

Question 14

A patient with a genetic mutation affecting membrane proteins is likely to experience problems with which cellular function?

Accepted Answer

Cell signaling and transport

Question 15

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

Accepted Answer

Synthesizing proteins

Question 16

Which feedback mechanism is most likely involved when blood glucose levels rise and insulin is released to lower them?

Accepted Answer

Negative feedback

Question 17

Which of the following best describes the role of cholesterol in the plasma membrane?

Accepted Answer

It increases membrane fluidity and stability.

Question 18

A scientist observes that a cell can divide and produce two identical daughter cells. Which concept does this illustrate?

Accepted Answer

Cell reproduction

Question 19

Which of the following is a direct function of the cytoskeleton in a cell?

Accepted Answer

Maintaining cell shape and enabling movement

Question 20

A cell is exposed to a toxin that disrupts its phospholipid bilayer. What is the most likely immediate effect?

Accepted Answer

Loss of selective permeability, leading to uncontrolled movement of substances in and out of the cell.

Cell Theory and Cellular Diversity: Foundations of Anatomy & Physiology

Study Guide - Practice Questions