Question 1

Which of the following best differentiates anatomy from physiology?

Accepted Answer

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

Question 2

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

Accepted Answer

Chemical, cellular, tissue, organ, organ system, organism

Question 3

A patient is unable to sweat due to a malfunction in their eccrine glands. Which homeostatic mechanism is most directly affected?

Accepted Answer

Negative feedback

Question 4

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

Accepted Answer

Release of oxytocin during childbirth to intensify uterine contractions

Question 5

A solution has a pH of 4. What is the hydrogen ion concentration $$[H^+] in $$moles per liter?

Accepted Answer

$$[H^+] = 1 	imes 10$$^{-4}$$

Question 6

Which of the following best describes the role of enzymes in biological reactions?

Accepted Answer

They lower the activation energy required for reactions to proceed.

Question 7

A patient is suffering from dehydration. Which direction will water move if their blood plasma is hypertonic compared to their cells?

Accepted Answer

Water will move out of the cells into the plasma.

Question 8

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

Accepted Answer

Synthesizing proteins for the cell

Question 9

Which organelle is primarily responsible for ATP production in eukaryotic cells?

Accepted Answer

Mitochondrion

Question 10

A tissue sample shows cells with striations and multiple nuclei per cell. Which tissue type is this most likely to be?

Accepted Answer

Skeletal muscle

Question 11

Which of the following statements about diffusion is correct?

Accepted Answer

Diffusion is the movement of molecules from an area of high concentration to an area of low concentration.

Question 12

Which of the following best describes the function of ribosomes?

Accepted Answer

They synthesize proteins by linking amino acids together.

Question 13

A patient has a genetic mutation that prevents the formation of gap junctions. Which tissue function would be most directly affected?

Accepted Answer

Cell-to-cell communication

Question 14

Which of the following is a characteristic of epithelial tissue?

Accepted Answer

It has a high rate of cell division and regeneration.

Question 15

Which pigment is primarily responsible for determining skin color in humans?

Accepted Answer

Melanin

Question 16

A burn patient has damage extending through the epidermis and entire dermis. Which type of burn is this?

Accepted Answer

Third-degree burn

Question 17

Which of the following best describes the function of the sodium-potassium pump ($$Na^+/K^+$$ ATPase) in cells?

Accepted Answer

It moves $$3\ Na^+$$ ions out of the cell and $$2\ K^+$$ ions into the cell using ATP.

Question 18

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

Accepted Answer

Protection against mechanical injury and pathogens

Question 19

Which of the following best describes the difference between simple and stratified epithelial tissue?

Accepted Answer

Simple epithelium has one layer of cells; stratified epithelium has multiple layers.

Question 20

A patient with cystic fibrosis has thick, sticky mucus due to a defect in chloride ion transport. Which membrane transport process is most directly affected?

Accepted Answer

Facilitated diffusion

Anatomy & Physiology Semester 1 Comprehensive Study Guide

Study Guide - Practice Questions

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