$$ \mathrm{ATP} + \mathrm{H}_2\mathrm{O} \rightarrow \mathrm{ADP} + \mathrm{P}_i + \text{energy} $$

Question 1

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

Accepted Answer

The body's ability to maintain a stable internal environment despite external changes.

Question 2

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

Accepted Answer

Supine anatomical position

Question 3

Which directional term describes a structure that is closer to the head than another structure?

Accepted Answer

Superior

Question 4

Which organ system is primarily responsible for regulating body temperature, protecting against pathogens, and preventing water loss?

Accepted Answer

Integumentary system

Question 5

A transverse plane divides the body into which sections?

Accepted Answer

Superior and inferior

Question 6

Which of the following is a correct description of the relationship between structure and function?

Accepted Answer

Structure determines function; the shape and composition of a body part allow it to perform its specific role.

Question 7

Which of the following is NOT a component of a feedback loop?

Accepted Answer

Enzyme

Question 8

Which of the following best illustrates a negative feedback mechanism?

Accepted Answer

Regulation of blood glucose levels by insulin

Question 9

Which of the following is a major element found in the human body and is essential for cellular respiration?

Accepted Answer

Oxygen

Question 10

Given an atom with 11 protons, 12 neutrons, and 11 electrons, what is its mass number?

Accepted Answer

23

Question 11

Which equation correctly represents ATP hydrolysis?

Accepted Answer

$$ \mathrm{ATP} + \mathrm{H}_2\mathrm{O} ightarrow \mathrm{ADP} + \mathrm{P}_i + 	ext{energy} $$

Question 12

Which of the following best describes the difference between a molecule and a compound?

Accepted Answer

A molecule is formed when two or more atoms join chemically; a compound is a molecule made of different elements.

Question 13

Which of the following is a property of water that is physiologically important for humans?

Accepted Answer

High heat capacity

Question 14

A solution has a pH of 5. Which statement is correct?

Accepted Answer

The solution is acidic because $$ \mathrm{pH} \u003c 7 $$

Question 15

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

Accepted Answer

Monomers are joined to form polymers by removing a molecule of water.

Question 16

Which of the following is a function of the plasma membrane according to the fluid mosaic model?

Accepted Answer

Regulates the movement of substances into and out of the cell

Question 17

A cell placed in a hypertonic solution will:

Accepted Answer

Lose water and shrink

Question 18

Which of the following best describes the function of ribosomes in protein synthesis?

Accepted Answer

Ribosomes facilitate the translation of mRNA into a polypeptide chain.

Question 19

Which tissue type is characterized by cells that are tightly packed, form continuous sheets, and function in protection, absorption, and secretion?

Accepted Answer

Epithelial tissue

Question 20

Which of the following is a distinguishing feature of cardiac muscle tissue?

Accepted Answer

Presence of intercalated discs

ANP Study Guide: Step-by-Step Guidance for Key Concepts

Study Guide - Practice Questions