Question 1

Which of the following best describes the process of osmosis in a cell?

Accepted Answer

Movement of water across a semipermeable membrane from an area of low solute concentration to high solute concentration.

Question 2

A patient is diagnosed with dehydration. Which cellular process is most directly affected by this condition?

Accepted Answer

Osmosis

Question 3

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

Accepted Answer

$$\Pi = iMRT$$

Question 4

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

Accepted Answer

Synthesizing proteins for cellular use

Question 5

A cell is placed in a hypertonic solution. What will most likely happen to the cell?

Accepted Answer

It will shrink as water leaves the cell.

Question 6

Which organelle is primarily responsible for ATP production in eukaryotic cells?

Accepted Answer

Mitochondrion

Question 7

Which of the following best describes the process of mitosis?

Accepted Answer

Replication of DNA followed by division of the nucleus resulting in two identical daughter cells

Question 8

Which type of epithelial tissue is best suited for diffusion and filtration, such as in the alveoli of the lungs?

Accepted Answer

Simple squamous epithelium

Question 9

Which connective tissue type is most likely to be found in tendons and ligaments?

Accepted Answer

Dense regular connective tissue

Question 10

A patient presents with brittle nails and hair loss. Which layer of the epidermis is most likely affected?

Accepted Answer

Stratum basale

Question 11

Which function is NOT associated with the integumentary system?

Accepted Answer

Production of red blood cells

Question 12

Which of the following best explains why sweat glands are important for homeostasis?

Accepted Answer

They help regulate body temperature by releasing water and salts.

Question 13

Which of the following is a function of keratinocytes in the epidermis?

Accepted Answer

Forming a waterproof barrier to prevent fluid loss

Question 14

A biopsy reveals a tissue with cells arranged in multiple layers, with the top layer being flat and scale-like. Which tissue type is this?

Accepted Answer

Stratified squamous epithelium

Question 15

Which equation describes the rate of diffusion ($$J) $$across a membrane according to Fick's law?

Accepted Answer

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

Question 16

Which of the following is a function of adipose tissue?

Accepted Answer

Storing energy in the form of triglycerides

Question 17

A patient with jaundice shows yellowing of the skin and nails. Which organ system is most likely involved?

Accepted Answer

Digestive system (liver)

Question 18

Which of the following is NOT a component of the cytoplasm?

Accepted Answer

Nucleus

Question 19

Which process requires energy input from ATP to move substances against their concentration gradient?

Accepted Answer

Active transport

Question 20

Which of the following is a reason why mitosis is important in multicellular organisms?

Accepted Answer

It enables growth and tissue repair.

Cell Biology, Histology, and the Integumentary System: Study Notes

Study Guide - Practice Questions