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) Tissue, 2) Organ, 3) Cell, 4) Organism, 5) Organ system.

Accepted Answer

3, 1, 2, 5, 4

Question 3

A patient is lying face up with palms facing forward and feet slightly apart. This position is known as:

Accepted Answer

Anatomical position

Question 4

Which plane divides the body into anterior and posterior sections?

Accepted Answer

Frontal (coronal) plane

Question 5

Which of the following best describes a negative feedback system?

Accepted Answer

A mechanism that reverses a deviation from the set point, such as body temperature regulation.

Question 6

Which of the following statements about chemical bonds is correct?

Accepted Answer

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.

Question 7

A solution has a pH of 5. Which of the following best describes this solution?

Accepted Answer

Acidic

Question 8

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 9

Which organelle is responsible for ATP production through aerobic respiration?

Accepted Answer

Mitochondrion

Question 10

A red blood cell is placed in a hypertonic solution. What will happen to the cell?

Accepted Answer

It will shrink due to water leaving the cell.

Question 11

Which of the following best describes facilitated diffusion?

Accepted Answer

Movement of molecules down their concentration gradient with the help of a membrane protein, without energy input.

Question 12

Which phase of the cell cycle is characterized by DNA replication?

Accepted Answer

S phase

Question 13

Which type of epithelial tissue is best suited for diffusion and filtration, and where is it commonly found?

Accepted Answer

Simple squamous epithelium; found in alveoli of lungs

Question 14

Which connective tissue type is found in tendons and ligaments, and what is its primary structural protein?

Accepted Answer

Dense regular connective tissue; collagen

Question 15

Which bone cell type is responsible for bone resorption during bone remodeling?

Accepted Answer

Osteoclast

Question 16

Which of the following is a function of the subcutaneous layer (hypodermis)?

Accepted Answer

Insulation and energy storage

Question 17

Which of the following best describes the sliding filament theory of muscle contraction?

Accepted Answer

Actin and myosin filaments slide past each other, shortening the sarcomere.

Question 18

Which of the following is true regarding the sodium-potassium ATPase pump?

Accepted Answer

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

Question 19

Which neuroglial cell forms the myelin sheath in the central nervous system?

Accepted Answer

Oligodendrocyte

Question 20

Which cranial nerve is responsible for vision?

Accepted Answer

Optic nerve (Cranial Nerve II)

Anatomy and Physiology I (BIO 250) - Comprehensive Study Guide: Learning Objectives and Key Concepts

Study Guide - Practice Questions