Question 1

Which of the following best describes the primary function of the sodium-potassium pump in a typical animal cell?

Accepted Answer

It actively transports sodium ions out of the cell and potassium ions into the cell, maintaining electrochemical gradients.

Question 2

Which process does NOT require ATP for the movement of substances across the cell membrane?

Accepted Answer

Simple diffusion

Question 3

A cell engulfs a bacterium by wrapping its membrane around it and internalizing it. Which process is this?

Accepted Answer

Phagocytosis

Question 4

Which of the following is a function of microvilli in epithelial cells?

Accepted Answer

Increase surface area for absorption

Question 5

Which statement correctly distinguishes between simple, stratified, and pseudostratified epithelial cells?

Accepted Answer

Simple epithelium has one layer, stratified has multiple layers, and pseudostratified appears layered but all cells touch the basement membrane.

Question 6

Which of the following is NOT a function of the skin?

Accepted Answer

Production of red blood cells

Question 7

What is the role of cilia in respiratory epithelial cells?

Accepted Answer

Movement of mucus and trapped particles out of the airways

Question 8

Which layer of the skin contains the majority of sensory receptors and blood vessels?

Accepted Answer

Dermis

Question 9

Which equation best represents the physiological function of the sodium-potassium pump?

Accepted Answer

$$3\ \mathrm{Na}^+_{in} + 2\ \mathrm{K}^+_{out} + \mathrm{ATP} \rightarrow 3\ \mathrm{Na}^+_{out} + 2\ \mathrm{K}^+_{in} + \mathrm{ADP} + \mathrm{P}_i$$

Question 10

A patient suffers a burn that destroys the epidermis and part of the dermis. Which type of tissue is primarily affected?

Accepted Answer

Epithelial tissue and connective tissue

Question 11

Which of the following glands are associated with sweat and differ from other skin glands by their role in thermoregulation?

Accepted Answer

Eccrine glands

Question 12

Which connective tissue type stores energy and provides insulation?

Accepted Answer

Adipose tissue

Question 13

Which of the following is a correct sequence of tissue healing after injury?

Accepted Answer

Inflammation, proliferation, remodeling

Question 14

Which layer of the epidermis is only found in thick skin, such as the palms and soles?

Accepted Answer

Stratum lucidum

Question 15

Which of the following best describes the extracellular matrix of connective tissue?

Accepted Answer

It consists of ground substance and protein fibers such as collagen and elastin.

Question 16

Which equation represents the rate of diffusion ($$J) $$across a membrane according to Fick's law?

Accepted Answer

$$J = D \frac{(C_1$ - C_2$)}{d}$$

Question 17

Which of the following is a function of exocrine glands found in the skin?

Accepted Answer

Production of sweat and sebum onto the skin surface

Question 18

Which tissue type is responsible for voluntary movement and is characterized by striations?

Accepted Answer

Skeletal muscle tissue

Question 19

Which of the following best describes the function of tight junctions in epithelial tissue?

Accepted Answer

They prevent leakage of substances between cells.

Question 20

Which of the following is a correct description of the two layers of the skin?

Accepted Answer

The epidermis is the superficial layer composed of epithelial cells, and the dermis is the deeper layer composed of connective tissue.

Study Guide: Cells, Tissues, and the Integumentary System

Study Guide - Practice Questions

Study Guide - Flashcards