Q: Which equation best represents the sum of all chemical reactions in the body, including both catabolism and anabolism?

$$\text{Metabolism} = \text{Catabolism} + \text{Anabolism}$$

Question 1

Which of the following best describes the principle of complementarity of structure and function?

Accepted Answer

Function always reflects structure; what a structure can do depends on its specific form.

Question 2

A scientist is studying the microscopic structure of the liver to understand how its cells interact. Which subdivision of anatomy is she most likely using?

Accepted Answer

Histology

Question 3

Which of the following is the correct order of structural organization in the human body, from simplest to most complex?

Accepted Answer

Chemical, cell, tissue, organ, organ system, organism

Question 4

Which life function is most directly associated with the breakdown of food into absorbable units?

Accepted Answer

Digestion

Question 5

A patient is unable to sweat, even when overheated. Which necessary life function is most directly impaired?

Accepted Answer

Excretion

Question 6

Which organ system is primarily responsible for transporting nutrients, wastes, and gases throughout the body?

Accepted Answer

Cardiovascular system

Question 7

A person is exposed to a cold environment. Which of the following best describes the homeostatic response?

Accepted Answer

Skeletal muscles begin shivering to generate heat.

Question 8

Which of the following is an example of a positive feedback mechanism?

Accepted Answer

Enhancement of labor contractions by oxytocin

Question 9

If the body’s negative feedback mechanisms become overwhelmed, what is a likely consequence?

Accepted Answer

Destructive positive feedback mechanisms may take over, leading to conditions such as heart failure.

Question 10

Which of the following best explains why oxygen is a survival need for humans?

Accepted Answer

Oxygen is essential for the release of energy from foods during cellular respiration.

Question 11

A break or tear in a blood vessel wall initiates a cascade where platelets adhere and release chemicals that attract more platelets. This process continues until a plug is formed. What type of feedback is this?

Accepted Answer

Positive feedback

Question 12

Which organ system is responsible for synthesizing vitamin D and housing cutaneous receptors?

Accepted Answer

Integumentary system

Question 13

Which of the following best describes the role of the control center in a homeostatic control system?

Accepted Answer

It determines the set point and analyzes input to determine the appropriate response.

Question 14

Which equation best represents the sum of all chemical reactions in the body, including both catabolism and anabolism?

Accepted Answer

$$	ext{Metabolism} = 	ext{Catabolism} + 	ext{Anabolism}$$

Question 15

A patient has a disease that prevents the elimination of nitrogenous wastes. Which organ system is most likely affected?

Accepted Answer

Urinary system

Question 16

Which of the following is a function of the skeletal system?

Accepted Answer

Forms blood cells and stores minerals

Question 17

Which scenario best illustrates the interrelationship between the digestive, respiratory, and cardiovascular systems?

Accepted Answer

Oxygen is absorbed by the lungs, nutrients by the digestive tract, and both are transported by the blood to body cells.

Question 18

Which of the following is NOT a necessary life function?

Accepted Answer

Photosynthesis

Question 19

A person is unable to sense pain due to nerve damage. Which necessary life function is most directly affected?

Accepted Answer

Responsiveness

Question 20

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

Accepted Answer

Picks up fluid leaked from blood vessels and houses white blood cells involved in immunity

Introduction to Anatomy & Physiology: Structure, Function, and Homeostasis

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