$$ICF = \frac{2}{3} \times \text{Total Body Fluid}$$

Question 1

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

Accepted Answer

Production of ATP

Question 2

A patient with a genetic defect in gap junction proteins would most likely experience problems with which cellular process?

Accepted Answer

Movement of ions and electrical signals between cells

Question 3

Which anatomical body cavity contains the heart?

Accepted Answer

Thoracic cavity

Question 4

What is the primary advantage of compartmentalization in the human body?

Accepted Answer

It allows for specialization of cellular functions.

Question 5

Which of the following best describes the structure of a biological membrane at the cellular level?

Accepted Answer

A phospholipid bilayer with embedded proteins

Question 6

If a cell loses its ability to produce integrins, which process would be most directly affected?

Accepted Answer

Anchoring the cell to the extracellular matrix

Question 7

Which of the following is a correct statement about extracellular fluid (ECF) and intracellular fluid (ICF)?

Accepted Answer

ICF is found within all cells of the body.

Question 8

A researcher is studying the movement of vesicles along microtubules in a neuron. Which motor protein is most likely involved?

Accepted Answer

Kinesin

Question 9

Which type of cell junction is primarily responsible for preventing the movement of substances between adjacent epithelial cells?

Accepted Answer

Tight junction

Question 10

Which tissue type is specialized for regulating exchange of materials between the internal and external environments?

Accepted Answer

Epithelial tissue

Question 11

A mutation that disrupts the production of collagen would most directly affect which component of the extracellular matrix?

Accepted Answer

Insoluble protein fibers

Question 12

Which of the following equations correctly represents the proportion of body fluid found in the intracellular compartment?

Accepted Answer

$$ICF = \frac{2}{3} 	imes 	ext{Total Body Fluid}$$

Question 13

Which of the following is a function of the cytoskeleton?

Accepted Answer

Providing a scaffold for cell shape

Question 14

Which type of muscle tissue is under voluntary control and contains minimal extracellular matrix?

Accepted Answer

Skeletal muscle

Question 15

A patient with a disease that degrades the extracellular matrix in lung tissue is most likely to develop which condition?

Accepted Answer

Fibrotic lung disease

Question 16

Which of the following best describes the role of membrane carbohydrates?

Accepted Answer

They serve as a physical barrier and play a role in immune recognition.

Question 17

Which cell junction is the strongest and attaches to intermediate filaments within the cell?

Accepted Answer

Desmosome

Question 18

Which of the following is a correct statement about the relationship between tissue type and extracellular matrix?

Accepted Answer

Connective tissue can be composed of both cells and matrix.

Question 19

Which motor protein is best known for its role in muscle contraction?

Accepted Answer

Myosin

Question 20

A scientist observes that a certain cell type has a high number of tight junctions. What is the most likely function of this cell type?

Accepted Answer

Preventing movement of substances between cells

Compartmentation: Cells and Tissues – Study Notes for Anatomy & Physiology

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