$$D = k \times A \times (C_1$ - C_2$)$$

Question 1

Which of the following best describes the composition of the body's extracellular environment?

Accepted Answer

It is composed primarily of water, dissolved solutes, and the extracellular matrix.

Question 2

Cells adhere to each other and to the extracellular matrix using which of the following mechanisms?

Accepted Answer

Cell junctions such as tight junctions, desmosomes, and gap junctions.

Question 3

Which process allows body cells to communicate over long distances using electrical signals?

Accepted Answer

Electrical signaling via action potentials.

Question 4

Which of the following is NOT one of the four main categories of tissues in the human body?

Accepted Answer

Nervous tissue.

Question 5

Simple squamous epithelium is best suited for which function?

Accepted Answer

Rapid diffusion and filtration.

Question 6

Which of the following equations correctly represents the rate of diffusion across a membrane?

Accepted Answer

$$D = k 	imes A 	imes (C_1$ - C_2$)$$

Question 7

A patient has damage to their dense regular connective tissue. Which function is most likely to be impaired?

Accepted Answer

Attachment of muscles to bones (tendons) and bones to bones (ligaments).

Question 8

Which of the following best differentiates exocrine glands from endocrine glands?

Accepted Answer

Exocrine glands secrete products onto epithelial surfaces; endocrine glands secrete hormones into the bloodstream.

Question 9

Which of the following is a passive process for membrane transport?

Accepted Answer

Facilitated diffusion.

Question 10

Which cellular structure is responsible for synthesizing proteins?

Accepted Answer

Ribosome.

Question 11

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

Accepted Answer

Interphase (S phase).

Question 12

Which of the following best describes the function of the plasma membrane?

Accepted Answer

It regulates the movement of substances into and out of the cell.

Question 13

Which type of epithelial tissue is specialized for absorption and secretion in the digestive tract?

Accepted Answer

Simple columnar epithelium.

Question 14

Which connective tissue type provides flexible support and is found in the external ear?

Accepted Answer

Elastic cartilage.

Question 15

Which of the following is a correct sequence of events in mitosis?

Accepted Answer

Prophase, metaphase, anaphase, telophase.

Question 16

Which equation best represents the osmotic pressure ($$\Pi) $$across a semipermeable membrane?

Accepted Answer

$$\Pi = iMRT$$

Question 17

A patient with chronic inflammation is likely to experience which phase of tissue repair most extensively?

Accepted Answer

Inflammation.

Question 18

Which of the following best describes the difference between serous and mucous membranes?

Accepted Answer

Serous membranes secrete watery fluid; mucous membranes secrete mucus.

Question 19

Which cell structure is responsible for packaging and modifying proteins for secretion?

Accepted Answer

Golgi apparatus.

Question 20

Which of the following is a function of microtubules in the cell?

Accepted Answer

Providing structural support and facilitating movement of organelles.

Study Guide: Tissues, Cellular Structure, and Membrane Transport in Anatomy & Physiology

Study Guide - Practice Questions