Question 1

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

Accepted Answer

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

Question 2

A patient is experiencing a rapid drop in blood pressure. Which homeostatic mechanism is most likely to restore normal blood pressure?

Accepted Answer

A negative feedback loop that triggers mechanisms to raise blood pressure.

Question 3

Which of the following correctly lists the levels of structural organization in the human body from simplest to most complex?

Accepted Answer

Chemical, cell, tissue, organ, organ system, organism

Question 4

A solution contains 0.1 mol of NaCl dissolved in 1 L of water. What is the osmolarity of this solution?

Accepted Answer

$$0.2\ \mathrm{osmoles/L}$$

Question 5

Which of the following best explains why water is an excellent solvent for biological reactions?

Accepted Answer

Water is a polar molecule, allowing it to surround and separate ions and polar molecules.

Question 6

A patient is given a solution with a pH of 3. Which of the following best describes this solution?

Accepted Answer

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

Question 7

Which of the following best describes the role of the sodium-potassium pump in maintaining resting membrane potential?

Accepted Answer

It moves 3 $$\mathrm{Na^+}$$ ions out of the cell and 2 $$\mathrm{K^+}$$ ions into the cell using active transport.

Question 8

Which of the following is a correct example of a dehydration synthesis reaction?

Accepted Answer

Combining two monosaccharides to form a disaccharide and water.

Question 9

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 10

Which of the following best describes the primary function of ribosomes?

Accepted Answer

Protein synthesis

Question 11

A tissue sample is prepared for microscopic examination. Which of the following steps is essential before viewing the tissue under a microscope?

Accepted Answer

The tissue must be fixed, sectioned, and stained.

Question 12

Which of the following is a characteristic unique to cardiac muscle tissue?

Accepted Answer

It is striated and contains intercalated discs.

Question 13

Which of the following best describes the function of the Golgi apparatus?

Accepted Answer

Modifies, sorts, and packages proteins and lipids for secretion or delivery to other organelles.

Question 14

A burn that destroys both the epidermis and the entire dermis is classified as which degree of burn?

Accepted Answer

Third-degree burn

Question 15

Which of the following best explains why saturated fats are solid at room temperature while unsaturated fats are liquid?

Accepted Answer

Saturated fats have no double bonds, allowing their fatty acid chains to pack tightly together.

Question 16

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

Accepted Answer

Protection against mechanical injury, pathogens, and dehydration

Question 17

Which of the following best describes the mechanism of enzyme action?

Accepted Answer

Enzymes lower activation energy, allowing reactions to proceed more rapidly.

Question 18

A patient with a genetic defect cannot produce collagen fibers. Which tissue type would be most affected?

Accepted Answer

Connective tissue

Question 19

Which of the following best describes the pairing of nitrogenous bases in DNA?

Accepted Answer

Adenine pairs with thymine, guanine pairs with cytosine.

Question 20

Which of the following is a correct sequence of events in protein synthesis?

Accepted Answer

Transcription occurs in the nucleus, followed by translation in the cytoplasm.

A&P1 Study Guide: Introduction, Chemistry, Cells, Tissues, and Integumentary System

Study Guide - Practice Questions