Question 1

Which of the following best describes the principle of homeostasis in the human body?

Accepted Answer

The maintenance of a stable internal environment despite changes in the external environment.

Question 2

A patient is lying face up with their arms at their sides and palms facing forward. Which anatomical position is this?

Accepted Answer

Supine anatomical position

Question 3

Which of the following best explains why water is considered a polar molecule?

Accepted Answer

Because the electrons are shared unequally between hydrogen and oxygen, creating partial charges.

Question 4

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

Accepted Answer

Cardiovascular system

Question 5

A solution has a pH of 4. Which of the following statements is correct?

Accepted Answer

The solution is acidic and has a higher concentration of $$\mathrm{H^+}$$ ions than a neutral solution.

Question 6

Which of the following best describes the difference between facilitated diffusion and primary active transport across the plasma membrane?

Accepted Answer

Facilitated diffusion does not require energy, while primary active transport requires ATP.

Question 7

A patient is diagnosed with a burn that affects the epidermis and the entire dermis, resulting in blisters and severe pain. According to burn classification, this is a:

Accepted Answer

Second-degree (partial-thickness) burn

Question 8

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

Accepted Answer

Buffers minimize changes in pH by binding or releasing hydrogen ions ($$\mathrm{H^+}).$$

Question 9

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

Accepted Answer

Atom $$\rightarrow$$ Molecule $$\rightarrow$$ Cell $$\rightarrow$$ Tissue $$\rightarrow$$ Organ $$\rightarrow$$ Organ system $$\rightarrow$$ Organism

Question 10

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

Accepted Answer

The cell will shrink because water moves out of the cell by osmosis.

Question 11

Which of the following best explains why proteins must maintain their specific three-dimensional shape?

Accepted Answer

The shape determines the protein's function by allowing it to interact with specific molecules.

Question 12

Which of the following is a function of the serous membranes lining the body cavities?

Accepted Answer

They reduce friction between moving organs by secreting serous fluid.

Question 13

Which of the following best describes the process of transcription?

Accepted Answer

The synthesis of mRNA from a DNA template.

Question 14

A patient presents with yellowing of the skin and sclera (jaundice). Which pigment is most likely responsible for this coloration, and what does it indicate?

Accepted Answer

Bilirubin; it may indicate liver dysfunction.

Question 15

Which of the following best describes the difference between an element and an atom?

Accepted Answer

An element is a substance made of only one type of atom, while an atom is the smallest unit of an element.

Question 16

Which of the following is a correct description of the role of ATP in the cell?

Accepted Answer

ATP provides energy for cellular processes by releasing a phosphate group during hydrolysis: $$\mathrm{ATP + H_2O \rightarrow ADP + P_i + energy}$$

Question 17

Which of the following best describes the function of neuroglial cells in nervous tissue?

Accepted Answer

They support, protect, and nourish neurons.

Question 18

Which of the following best explains why lipids are hydrophobic?

Accepted Answer

Lipids are nonpolar molecules and do not interact favorably with water, which is polar.

Question 19

A tissue sample shows cells with striations, multiple nuclei, and voluntary control. Which type of tissue is this?

Accepted Answer

Skeletal muscle tissue

Question 20

A patient is unable to sweat due to a genetic disorder affecting their sweat glands. Which organ system is primarily affected, and what is a likely consequence?

Accepted Answer

Integumentary system; impaired thermoregulation leading to risk of overheating.

Step-by-Step Study Guidance for ANP College Course Modules 1–5

Study Guide - Practice Questions

Study Guide - Flashcards