Question 1

Which of the following best describes the primary function of simple squamous epithelium in the alveoli of the lungs?

Accepted Answer

Absorption and diffusion of gases

Question 2

A patient has a genetic defect affecting the production of chondroitin sulfate. Which tissue is most likely to be directly affected?

Accepted Answer

Cartilage

Question 3

Which of the following cell junctions allows for the rapid passage of ions and electrical signals between cardiac muscle cells?

Accepted Answer

Gap junctions

Question 4

A biopsy of a gland reveals ducts that branch repeatedly and end in sac-like secretory portions. Which type of gland is this most likely to be?

Accepted Answer

Compound alveolar

Question 5

Which of the following best explains why dense regular connective tissue is well-suited for forming tendons?

Accepted Answer

It has tightly packed, parallel collagen fibers that resist force in one direction.

Question 6

A patient with a burn injury to the skin is unable to regenerate the damaged area. Which property of epithelial tissue is most likely impaired?

Accepted Answer

Continuous division of stem cells

Question 7

Which of the following is a function of the ground substance in connective tissue?

Accepted Answer

Filling spaces between cells and slowing pathogen movement

Question 8

A researcher observes a tissue with multiple layers of cells, with the apical layer being flat and thin. Which type of epithelium is this?

Accepted Answer

Stratified squamous epithelium

Question 9

Which of the following best describes the function of microvilli on the apical surface of epithelial cells in the small intestine?

Accepted Answer

Increase absorption by expanding surface area

Question 10

A patient is diagnosed with a disease that destroys the reticular fibers in the spleen. Which of the following consequences is most likely?

Accepted Answer

Disruption of the three-dimensional support network for functional cells

Question 11

Which of the following best explains why cartilage heals poorly after injury?

Accepted Answer

It is avascular, so nutrients and cells required for repair are limited.

Question 12

Which of the following is a characteristic of merocrine secretion?

Accepted Answer

Secretory vesicles release product by exocytosis

Question 13

A patient with a genetic defect in cell adhesion molecules (CAMs) would most likely have problems with which of the following?

Accepted Answer

Attachment of epithelial cells to each other and to the basement membrane

Question 14

Which of the following best describes the role of mast cells in connective tissue?

Accepted Answer

Stimulate inflammation by releasing histamine and heparin

Question 15

A tissue sample shows cells that secrete hormones directly into the bloodstream without ducts. Which type of gland is this?

Accepted Answer

Endocrine gland

Question 16

Which of the following best explains why transitional epithelium is found in the urinary bladder?

Accepted Answer

It allows repeated cycles of stretching and recoiling without damage.

Question 17

A patient with a mutation affecting the production of keratin would most likely have problems with which tissue?

Accepted Answer

Stratified squamous epithelium of the skin

Question 18

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

Accepted Answer

Prevent passage of water and solutes between cells

Question 19

A patient with a deficiency in fibroblasts would most likely experience which of the following problems?

Accepted Answer

Reduced production of collagen and ground substance in connective tissue

Question 20

Which of the following equations best represents the relationship between the volume of ground substance ($$V_{gs}$$), the total volume of connective tissue ($$V_{ct}$$), and the volume of fibers ($$V_{f}) $$and cells ($$V_{c}) in a $$sample, assuming no overlap?

Accepted Answer

$$V_{ct} = V_{gs} + V_{f} + V_{c}$$

Tissues: Structure, Function, and Classification in Anatomy & Physiology

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