Question 1

Which of the following best describes the relationship between tissues, organs, and organ systems in the human body?

Accepted Answer

Tissues are groups of similar cells, organs are made of different tissues, and organ systems are groups of organs working together.

Question 2

A patient suffers a tendon injury. Which type of tissue is primarily affected, and what is its main structural protein?

Accepted Answer

Dense fibrous connective tissue; collagen

Question 3

Which of the following is a unique characteristic of epithelial tissue compared to other tissue types?

Accepted Answer

It forms external and internal linings and is often only one cell layer thick.

Question 4

Which tissue type is most likely to become cancerous and why?

Accepted Answer

Epithelial tissue, because it constantly replaces its cells.

Question 5

A person is unable to move their limbs voluntarily but still has involuntary muscle contractions in their digestive tract. Which muscle types are affected?

Accepted Answer

Skeletal muscle is affected; smooth muscle is not.

Question 6

Which of the following best explains why blood is considered a connective tissue?

Accepted Answer

It is composed of cells suspended in a noncellular matrix (plasma) and connects body systems by transporting substances.

Question 7

Which of the following is an example of negative feedback in human physiology?

Accepted Answer

The pancreas secretes insulin when blood sugar is high, lowering blood glucose levels.

Question 8

Which organ system is primarily responsible for the removal of metabolic wastes and regulation of fluid and chemical content in the blood?

Accepted Answer

Urinary system

Question 9

A neuron is damaged and loses its myelin sheath. What is the most likely consequence?

Accepted Answer

Nerve impulses will travel more slowly along the axon.

Question 10

Which of the following best describes the function of the lymphatic system?

Accepted Answer

It absorbs fats from the digestive system and collects excess tissue fluid.

Question 11

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

Accepted Answer

Producing and secreting hormones

Question 12

A patient has a genetic disorder that prevents the production of collagen. Which tissues would be most directly affected?

Accepted Answer

Connective tissues

Question 13

Which of the following best explains why homeostasis is essential for survival?

Accepted Answer

It maintains relatively constant internal conditions despite external fluctuations, ensuring optimal cellular function.

Question 14

Which of the following is a correct pairing of organ system and its primary function?

Accepted Answer

Muscular system – movement of the body

Question 15

Which of the following best describes the role of the control center in a negative feedback loop?

Accepted Answer

It initiates an effect that brings conditions back to normal.

Question 16

Which of the following is a function of platelets in blood?

Accepted Answer

Forming a plug and releasing molecules to help clotting

Question 17

Which of the following is true about the structure of skeletal muscle fibers?

Accepted Answer

They are cylindrical, long, and have multiple nuclei.

Question 18

Which of the following best explains why the respiratory and urinary systems are both essential for homeostasis?

Accepted Answer

Both systems remove metabolic wastes from the body, helping maintain the internal environment.

Question 19

A person has a deficiency in Schwann cells. Which process would be most directly impaired?

Accepted Answer

The speed of nerve impulse conduction

Question 20

Which of the following best describes the main difference between the nervous and endocrine systems in terms of control?

Accepted Answer

The nervous system coordinates rapid, short-term responses, while the endocrine system provides slower, longer-lasting regulation.

Organization of the Animal Body and Homeostasis: Structure and Function of Tissues, Organs, and Organ Systems

Study Guide - Practice Questions

Study Guide - Flashcards