Question 1

Which of the following best describes the function of the glycocalyx on the plasma membrane of animal cells?

Accepted Answer

It facilitates cell recognition, adhesion, and protection from mechanical and chemical damage.

Question 2

A red blood cell is placed in a solution and begins to swell and eventually bursts. Which term best describes the solution?

Accepted Answer

Hypotonic

Question 3

Which organelle is primarily responsible for the synthesis of lipids and detoxification of drugs in the cell?

Accepted Answer

Smooth endoplasmic reticulum

Question 4

During which phase of the cell cycle does DNA replication occur?

Accepted Answer

S phase

Question 5

Which of the following best describes the difference between integral and peripheral proteins in the plasma membrane?

Accepted Answer

Integral proteins are embedded within the lipid bilayer, while peripheral proteins are attached to the membrane surface.

Question 6

A patient is given an intravenous solution that is hypertonic compared to their blood plasma. What is the most likely effect on their red blood cells?

Accepted Answer

The cells will shrink due to water loss.

Question 7

Which of the following organelles is classified as non-membranous?

Accepted Answer

Ribosome

Question 8

Which process involves the movement of water across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration?

Accepted Answer

Osmosis

Question 9

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

Accepted Answer

Increase surface area for absorption of nutrients

Question 10

Which organelle is responsible for packaging and modifying proteins for secretion?

Accepted Answer

Golgi complex

Question 11

Which of the following is a correct description of facilitated diffusion?

Accepted Answer

Movement of molecules down their concentration gradient with the help of membrane proteins

Question 12

Which of the following best describes the process of phagocytosis?

Accepted Answer

The cell engulfs large particles or microorganisms by extending pseudopodia and enclosing them in a vesicle.

Question 13

Which of the following equations correctly represents the relationship between osmotic pressure ($$\Pi$$), solute concentration ($$C$$), gas constant ($$R$$), and temperature ($$T$$)?

Accepted Answer

$$\Pi = CRT$$

Question 14

A cell uses a symport carrier to transport glucose and sodium ions into the cell. Which statement best describes this process?

Accepted Answer

Glucose and sodium ions are transported together in the same direction.

Question 15

Which stage of mitosis is characterized by the alignment of chromosomes along the center of the cell?

Accepted Answer

Metaphase

Question 16

Which of the following is an example of an inclusion rather than an organelle?

Accepted Answer

Glycogen granule

Question 17

Which of the following best describes the difference between cytosol and extracellular fluid?

Accepted Answer

Cytosol is the fluid portion of the cytoplasm inside the cell, while extracellular fluid is found outside the cell.

Question 18

Which of the following processes requires energy in the form of ATP to move substances across the plasma membrane?

Accepted Answer

Active transport

Question 19

Which organelle contains enzymes that break down hydrogen peroxide into water and oxygen?

Accepted Answer

Peroxisome

Question 20

A cell is observed to have numerous cilia on its surface. What is the most likely function of these cilia?

Accepted Answer

Move substances across the cell surface

Cellular Level of Organization: Human Anatomy & Physiology Study Notes

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