Question 1

Which of the following best illustrates the interrelationship between anatomy and physiology?

Accepted Answer

The structure of alveoli in the lungs increases surface area, allowing efficient gas exchange.

Question 2

Arrange the following levels of organization from simplest to most complex: 1) organ, 2) tissue, 3) cell, 4) organ system, 5) molecule.

Accepted Answer

5, 3, 2, 1, 4

Question 3

A patient is lying face up with their palms facing forward. According to anatomical position, which of the following statements is correct?

Accepted Answer

The thumb is lateral to the little finger.

Question 4

A midsagittal plane divides the body into:

Accepted Answer

Equal right and left halves

Question 5

Which organ is found in the right upper quadrant (RUQ) of the abdominopelvic cavity?

Accepted Answer

Liver

Question 6

Which of the following best describes a negative feedback system?

Accepted Answer

A rise in blood glucose triggers insulin release, which lowers blood glucose back to normal.

Question 7

Which of the following statements about chemical bonds is correct?

Accepted Answer

Ionic bonds involve the transfer of electrons, as seen in sodium chloride ($$\mathrm{NaCl}).$$

Question 8

A solution has a pH of 5. Which of the following is true?

Accepted Answer

It is acidic because $$\mathrm{pH} \u003c 7.$$

Question 9

Which of the following best describes the fluid mosaic model of the plasma membrane?

Accepted Answer

A dynamic structure with proteins embedded in or attached to a phospholipid bilayer.

Question 10

Which organelle is responsible for ATP production through aerobic respiration?

Accepted Answer

Mitochondrion

Question 11

A red blood cell placed in a hypertonic solution will:

Accepted Answer

Shrink due to water leaving the cell.

Question 12

Which of the following best distinguishes facilitated diffusion from active transport?

Accepted Answer

Facilitated diffusion does not require ATP, while active transport does.

Question 13

During which phase of the cell cycle does DNA replication occur?

Accepted Answer

S phase

Question 14

Which of the following is a function of simple squamous epithelium?

Accepted Answer

Facilitates rapid diffusion of gases in the lungs.

Question 15

Which bone cell type is primarily responsible for bone resorption?

Accepted Answer

Osteoclast

Question 16

Which of the following best describes the difference between neurons and glial cells?

Accepted Answer

Neurons transmit electrical impulses, while glial cells support and protect neurons.

Question 17

Which of the following is a characteristic of the dermis but not the epidermis?

Accepted Answer

Contains blood vessels and nerve endings.

Question 18

Which of the following best describes the role of the sodium-potassium ATPase pump in maintaining resting membrane potential ($$\mathrm{RMP}$$)?

Accepted Answer

It actively transports $$3\ \mathrm{Na}^+$$ out and $$2\ \mathrm{K}^+$$ into the cell, maintaining a negative interior.

Question 19

Which of the following is true regarding the difference between somatic and autonomic divisions of the nervous system?

Accepted Answer

The somatic division controls voluntary skeletal muscle movements, while the autonomic division regulates involuntary functions.

Question 20

Which of the following best describes the function of a buffer in biological systems?

Accepted Answer

It minimizes changes in pH by accepting or donating $$\mathrm{H}^+$$ ions.

Comprehensive Study Guide: Learning Objectives for Anatomy and Physiology I (BIO 250)

Study Guide - Practice Questions