Question 1

Which of the following is NOT a function of the cell membrane?

Accepted Answer

Production of ATP for cellular energy

Question 2

A patient with cystic fibrosis has a mutation in the CFTR protein. What is the primary consequence of this mutation at the cellular level?

Accepted Answer

Defective chloride channel causing thick mucus in passageways

Question 3

Which type of cell junction allows direct cytoplasmic communication between adjacent cells?

Accepted Answer

Gap junctions

Question 4

Which of the following best describes the structure of the cell membrane according to the fluid mosaic model?

Accepted Answer

A double layer of phospholipids with embedded proteins

Question 5

Which organelle is responsible for assembling tubulin monomers into microtubules?

Accepted Answer

Centrosome

Question 6

A tissue sample shows cells with many mitochondria, tight junctions, and a distinct apical membrane. What type of epithelium is most likely present?

Accepted Answer

Transporting epithelium

Question 7

Which connective tissue type is characterized by a calcified extracellular matrix?

Accepted Answer

Bone

Question 8

Which of the following cell adhesion molecules (CAMs) is primarily found in cell-matrix junctions and also functions in cell signaling?

Accepted Answer

Integrins

Question 9

Which process describes programmed cell death that is essential for tissue remodeling?

Accepted Answer

Apoptosis

Question 10

A researcher observes a tissue with cells that are flat and thin, forming a single layer lining blood vessels. What is the correct classification for this epithelium?

Accepted Answer

Simple squamous epithelium

Question 11

Which of the following is a function of the cytoskeleton?

Accepted Answer

Assembly of cells into tissues

Question 12

Which type of connective tissue provides support for small glands and is found under the skin?

Accepted Answer

Loose connective tissue

Question 13

Which of the following best describes the role of desmosomes?

Accepted Answer

Anchor cells together to resist mechanical stress

Question 14

Which organelle is responsible for controlling the synthesis of ribosomal RNA?

Accepted Answer

Nucleolus

Question 15

A patient has a genetic disorder affecting keratin production. Which cellular structure is most likely disrupted?

Accepted Answer

Intermediate filaments

Question 16

Which of the following equations correctly represents the calculation of total body water (TBW) in liters for an adult weighing $$W kg$$, assuming $$60\% of $$body weight is water?

Accepted Answer

$$TBW = W 	imes 0.6$$

Question 17

Which of the following is TRUE regarding cartilage?

Accepted Answer

It lacks a blood supply and heals slowly

Question 18

Which type of epithelium is specialized for moving fluid and particles, such as in the respiratory tract?

Accepted Answer

Ciliated epithelium

Question 19

Which of the following best describes the difference between exocrine and endocrine glands?

Accepted Answer

Exocrine glands release products to the external environment through ducts; endocrine glands release hormones into the extracellular compartment

Question 20

A muscle cell is observed to have disrupted dystrophin, leading to muscular dystrophy. Which cellular structure is most directly affected?

Accepted Answer

Cytoskeleton

Compartmentalization in Cells and Tissues: Structure and Function (Chapter 3 Study Notes)

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