Question 1

Which of the following best describes the relationship between anatomy and physiology?

Accepted Answer

Anatomy studies the structure of body parts, while physiology studies how those parts function.

Question 2

Arrange the following levels of organization from simplest to most complex: cell, organ, tissue, organ system.

Accepted Answer

Cell → tissue → organ → organ system

Question 3

A patient is standing facing forward with palms forward. This position is known as:

Accepted Answer

Anatomical position

Question 4

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

Accepted Answer

Superior

Question 5

Which type of chemical bond involves the sharing of electron pairs between atoms?

Accepted Answer

Covalent bond

Question 6

Given the chemical reaction: $$ \mathrm{C_6H_{12}O_6$} + 6\mathrm{O_2$} ightarrow 6\mathrm{CO_2$} + 6\mathrm{H_2O} + 	ext{energy} $$, what type of reaction is this?

Accepted Answer

Catabolic reaction

Question 7

Which of the following best explains why negative feedback is the most common mechanism used to maintain homeostasis?

Accepted Answer

It reverses the direction of the stimulus, keeping variables within a normal range.

Question 8

A solution has a pH of 3. Which of the following best describes this solution?

Accepted Answer

It is acidic and has a high concentration of $$ \mathrm{H^+} $$ ions.

Question 9

Which of the following statements about water is correct?

Accepted Answer

Water has a high heat capacity and is an excellent solvent due to its polarity.

Question 10

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

Accepted Answer

A molecule consists of two or more atoms bonded together, while a compound consists of two or more different elements bonded together.

Question 11

Which of the following is an example of a positive feedback mechanism in the human body?

Accepted Answer

Blood clotting after injury

Question 12

Which of the following best describes the function of enzymes in chemical reactions?

Accepted Answer

Enzymes act as biological catalysts, speeding up reactions by lowering activation energy.

Question 13

A patient is experiencing muscle weakness due to a lack of ATP. Which cellular process is most directly affected?

Accepted Answer

Cellular respiration

Question 14

Which of the following best describes the role of valence electrons in chemical bonding?

Accepted Answer

Valence electrons are shared or transferred between atoms to form chemical bonds.

Question 15

Which of the following is a property of polar covalent bonds?

Accepted Answer

Electrons are shared unequally, resulting in partial charges on atoms.

Question 16

Which of the following best explains why buffers are important in biological systems?

Accepted Answer

Buffers maintain pH stability by neutralizing excess acids or bases.

Question 17

Which of the following is a correct example of an exchange reaction?

Accepted Answer

$$ \mathrm{AB} + \mathrm{CD} \rightarrow \mathrm{AD} + \mathrm{CB} $$

Question 18

Which of the following statements about free radicals is correct?

Accepted Answer

Free radicals are atoms or molecules with unpaired electrons and can cause cellular damage.

Question 19

Which of the following best describes the difference between hydrophilic and hydrophobic molecules?

Accepted Answer

Hydrophilic molecules dissolve easily in water, while hydrophobic molecules do not.

Question 20

A patient is given a medication that increases the rate of hydrolysis reactions in the body. What is the most likely effect?

Accepted Answer

Increased breakdown of complex molecules into simpler ones by adding water.

Foundations of Anatomy, Physiology, and Chemistry: Study Guide

Study Guide - Practice Questions

Study Guide - Flashcards