Q: Which equation best describes the composition of the extracellular matrix (ECM) in connective tissue?

$$ECM = \text{Ground substance} + \text{Fibers}$$

Question 1

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

Accepted Answer

Allows rapid diffusion of gases across the membrane

Question 2

A tissue sample from the lining of the small intestine shows cells with microvilli and goblet cells. Which type of epithelium is most likely present?

Accepted Answer

Simple columnar epithelium

Question 3

Which characteristic distinguishes epithelial tissue from connective tissue?

Accepted Answer

Epithelial tissue is avascular but innervated

Question 4

A gland that releases its product by exocytosis without losing any part of the cell is classified as:

Accepted Answer

Merocrine

Question 5

Which of the following is a function of connective tissue?

Accepted Answer

Binding and support of other tissues

Question 6

A biopsy from the esophagus reveals multiple layers of cells with the surface layer being flat and scale-like. What is the most likely type of epithelium?

Accepted Answer

Stratified squamous epithelium

Question 7

Which cell type in connective tissue is responsible for producing fibers and ground substance?

Accepted Answer

Fibroblast

Question 8

What is the main difference between endocrine and exocrine glands?

Accepted Answer

Exocrine glands secrete products onto body surfaces or into cavities; endocrine glands secrete hormones into the blood

Question 9

Which of the following best describes the basement membrane in epithelial tissue?

Accepted Answer

A non-cellular structure that anchors epithelial cells to underlying connective tissue

Question 10

Which connective tissue fiber type provides the greatest tensile strength?

Accepted Answer

Collagen fibers

Question 11

A patient with a genetic defect in elastin protein would most likely have problems with which connective tissue function?

Accepted Answer

Ability to stretch and recoil

Question 12

Which of the following is TRUE about stratified epithelia?

Accepted Answer

They are more durable and provide protection

Question 13

Which cell type is most likely to initiate a local inflammatory response in connective tissue?

Accepted Answer

Mast cell

Question 14

Which of the following best describes the function of goblet cells in epithelial tissue?

Accepted Answer

Secretion of mucin to form mucus

Question 15

Which equation best represents the relationship between the number of cell layers ($$n) $$and the classification of epithelia?

Accepted Answer

$$n = 1$$ \rightarrow$$ simple epithelium; n$$ \geq 2$$ \rightarrow$$ stratified epithelium

Question 16

Which of the following is NOT a function of epithelial tissue?

Accepted Answer

Transporting oxygen in blood

Question 17

A tissue sample from the trachea shows cells of varying heights, nuclei at different levels, and cilia. Which type of epithelium is most likely present?

Accepted Answer

Pseudostratified columnar epithelium

Question 18

Which equation best describes the composition of the extracellular matrix (ECM) in connective tissue?

Accepted Answer

$$ECM = 	ext{Ground substance} + 	ext{Fibers}$$

Question 19

Which of the following best explains why epithelial tissue is able to regenerate quickly after injury?

Accepted Answer

It has high regenerative capacity due to frequent cell division

Question 20

Which of the following is a real-world example of a holocrine gland?

Accepted Answer

Sebaceous (oil) gland

BIO111 Lecture 7: Tissue Organization and Classification

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