Question 1

Which of the following best describes the process of osmosis?

Accepted Answer

Movement of water molecules from an area of low solute concentration to an area of high solute concentration across a selectively permeable membrane.

Question 2

A red blood cell placed in a hypertonic solution will undergo which of the following processes?

Accepted Answer

Crenation

Question 3

Which equation best represents the rate of simple diffusion across a membrane?

Accepted Answer

$$ J = -D \frac{dC}{dx} $$

Question 4

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

Accepted Answer

Contains abundant extracellular matrix

Question 5

A patient with severe dehydration is given an intravenous solution. Which type of solution should be administered to avoid hemolysis of red blood cells?

Accepted Answer

Isotonic

Question 6

Which of the following best describes facilitated diffusion?

Accepted Answer

Movement of molecules across a membrane via specific carrier proteins, down their concentration gradient, without energy input.

Question 7

Which epithelial tissue is specialized for rapid diffusion and can be found lining the alveoli of the lungs?

Accepted Answer

Simple squamous epithelium

Question 8

Which of the following is a function of transitional epithelium?

Accepted Answer

Allows stretching and recoiling in organs such as the urinary bladder

Question 9

A cell is placed in a solution where the solute concentration outside the cell is lower than inside. What will happen to the cell?

Accepted Answer

It will swell and may undergo cytolysis.

Question 10

Which process involves the engulfment of large particles by the cell membrane to form a vesicle?

Accepted Answer

Phagocytosis

Question 11

Which of the following best describes the function of goblet cells in pseudostratified ciliated columnar epithelium?

Accepted Answer

Secretion of mucus to trap particles and protect underlying tissues

Question 12

Which term describes the movement of water across a selectively permeable membrane due to hydrostatic pressure?

Accepted Answer

Filtration

Question 13

Which equation represents the osmotic pressure ($$\Pi) of a $$solution?

Accepted Answer

$$ \Pi = iMRT $$

Question 14

Which of the following is true about active transport?

Accepted Answer

It requires energy, usually in the form of ATP, to move substances against their concentration gradient.

Question 15

Which type of epithelial tissue lines the kidney tubules and is specialized for secretion and absorption?

Accepted Answer

Simple cuboidal epithelium

Question 16

Which process is used by cells to expel waste or secretory products via vesicles fusing with the plasma membrane?

Accepted Answer

Exocytosis

Question 17

A patient is diagnosed with diabetes mellitus. Which laboratory test involving Benedict’s solution would help confirm the presence of glucose in urine?

Accepted Answer

A color change from blue to orange after heating indicates glucose is present.

Question 18

Which of the following best describes selective permeability?

Accepted Answer

The ability of a membrane to allow some substances to pass while restricting others.

Question 19

Which term describes the shrinkage of a plant cell due to water loss in a hypertonic environment?

Accepted Answer

Plasmolysis

Question 20

Which of the following is a distinguishing feature of pseudostratified ciliated columnar epithelium?

Accepted Answer

All cells touch the basement membrane, but not all reach the apical surface.

Cell Transport, Permeability, and Epithelial Tissue: Study Guide for ANP Lab

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