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

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 patient is unable to sweat due to a genetic disorder. Which necessary life function is most directly impaired?

Accepted Answer

Excretion

Question 3

Which level of structural organization is correctly matched with its description?

Accepted Answer

Organ level: Organs are made up of different types of tissues.

Question 4

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

Accepted Answer

Cardiovascular system

Question 5

A person is exposed to a cold environment. Which of the following best describes the negative feedback response that maintains homeostasis?

Accepted Answer

Body temperature falls, receptors detect the change, the control center activates effectors (muscles) to shiver, and body temperature rises.

Question 6

Which of the following is an example of positive feedback in the human body?

Accepted Answer

Enhancement of labor contractions by oxytocin

Question 7

Which component of a homeostatic control mechanism determines the set point and analyzes input from the receptor?

Accepted Answer

Control center

Question 8

A person with kidney failure cannot efficiently remove urea from the blood. Which necessary life function is most directly affected?

Accepted Answer

Excretion

Question 9

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

Accepted Answer

Oxygen is essential for energy release (ATP production) during cellular respiration.

Question 10

If the negative feedback mechanisms become overwhelmed and destructive positive feedback mechanisms take over, what is a likely consequence?

Accepted Answer

Increased risk of disease and possible organ failure

Question 11

Which of the following is NOT a necessary life function?

Accepted Answer

Respiration

Question 12

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

Accepted Answer

Integumentary system

Question 13

A scientist is studying the microscopic structure of liver tissue. Which subdivision of anatomy is she using?

Accepted Answer

Histology

Question 14

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

Accepted Answer

Disposes of debris, returns leaked fluid to blood, and houses immune cells.

Question 15

Which of the following is an example of a multi-step homeostatic control mechanism?

Accepted Answer

Stimulus → Receptor → Control Center → Effector → Response

Question 16

Which of the following equations best represents the relationship between catabolism and anabolism in metabolism?

Accepted Answer

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

Question 17

Which of the following best illustrates the interdependence of body cells?

Accepted Answer

All cells depend on organ systems to meet their survival needs.

Question 18

A patient has a blood clotting disorder where clots form uncontrollably. Which feedback mechanism is likely malfunctioning?

Accepted Answer

Positive feedback

Question 19

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

Accepted Answer

Chemical → Cellular → Tissue → Organ → Organ System → Organismal

Question 20

Which of the following survival needs is most directly affected by a decrease in atmospheric pressure?

Accepted Answer

Oxygen exchange in the lungs

Chapter 1: The Human Body – An Orientation (Anatomy & Physiology Study Notes)

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