Question 1

Which of the following best describes the main advantage of multicellularity over unicellularity in organisms?

Accepted Answer

Multicellular organisms can specialize their cells for different functions, increasing overall efficiency and survival.

Question 2

Which type of epithelial tissue is best adapted for diffusion across cell barriers, and where is it commonly found?

Accepted Answer

Simple squamous epithelium; found lining blood vessels and air sacs of lungs

Question 3

A patient suffers a burn that destroys the epidermis but leaves the dermis intact. Which of the following structures is most likely to remain functional?

Accepted Answer

Sweat glands

Question 4

Which of the following best explains why cartilage heals slowly after injury?

Accepted Answer

Cartilage lacks blood vessels, so nutrients and cells required for repair arrive slowly.

Question 5

Which of the following is a correct pairing of a connective tissue type and its primary function?

Accepted Answer

Adipose tissue: insulation and energy storage

Question 6

A scientist is studying a tissue sample with cells that are long, thin, multinucleated, and arranged in parallel bundles. Which tissue is she most likely observing?

Accepted Answer

Skeletal muscle

Question 7

Which of the following best describes the function of gap junctions in cardiac muscle tissue?

Accepted Answer

They allow direct electrical connections between cells, enabling coordinated contraction.

Question 8

Which of the following is NOT a function of the integumentary system?

Accepted Answer

Production of red blood cells

Question 9

A person is experiencing difficulty with voluntary movement. Which tissue type is most likely affected?

Accepted Answer

Skeletal muscle

Question 10

Which of the following best describes the role of the basement membrane in epithelial tissues?

Accepted Answer

It provides structural support and attaches the epithelial layer to underlying connective tissue.

Question 11

Which of the following scenarios best illustrates negative feedback in homeostasis?

Accepted Answer

When body temperature rises, sweat glands are activated to cool the body, returning temperature to normal.

Question 12

Which of the following is a correct description of the function of glial cells in nervous tissue?

Accepted Answer

They surround, protect, and provide nutrients to neurons.

Question 13

A tissue sample is found to contain many elastic fibers and surrounds the bladder. Which type of connective tissue is this?

Accepted Answer

Elastic connective tissue

Question 14

Which of the following best explains why weight loss reduces the size of adipose cells but not their number?

Accepted Answer

Adipocytes store less fat in their vacuoles, but the cells themselves are not destroyed.

Question 15

Which of the following best describes the function of serous membranes?

Accepted Answer

They line and lubricate internal body cavities, reducing friction between organs.

Question 16

A patient has a disorder affecting the reticular connective tissue. Which organ system is most likely to be impacted?

Accepted Answer

Lymphatic system

Question 17

Which of the following best describes the function of adhesion junctions (spot desmosomes) in epithelial tissue?

Accepted Answer

They permit some movement between cells, allowing tissues to stretch and bend.

Question 18

Which of the following is a correct description of the organization of the human body from smallest to largest?

Accepted Answer

Cell → Tissue → Organ → Organ System

Question 19

A patient is diagnosed with a disease that impairs the function of their basement membrane. Which of the following consequences is most likely?

Accepted Answer

Epithelial tissues may detach from underlying connective tissue, compromising structural integrity.

Question 20

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

Accepted Answer

Exocrine glands secrete products into ducts or hollow organs, while endocrine glands secrete hormones directly into the blood.

From Cells to Organ Systems: Structure and Function in Human Biology

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