$$\text{mass flow (amt x/min)} = \text{amount} \times \text{vol} \times \text{volume flow}$$

Question 1

Which of the following best describes an emergent property in physiology?

Accepted Answer

A property that arises from the interaction of individual components, not present in the components themselves.

Question 2

Which organ system is primarily responsible for distributing materials by pumping blood through vessels?

Accepted Answer

Circulatory (cardiovascular) system

Question 3

A scientist is studying the effect of a new drug on blood glucose levels. Which variable should be placed on the Y-axis of a graph?

Accepted Answer

Blood glucose level (dependent variable)

Question 4

Which equation correctly represents mass flow in the body?

Accepted Answer

$$	ext{mass flow (amt x/min)} = 	ext{amount} 	imes 	ext{vol} 	imes 	ext{volume flow}$$

Question 5

Which of the following statements about homeostasis is correct?

Accepted Answer

Homeostasis maintains a dynamic steady state, not equilibrium.

Question 6

A patient with diabetes mellitus has abnormally high blood glucose. This is an example of:

Accepted Answer

Failure to maintain homeostasis

Question 7

Which of the following is a correct sequence in a simple control system?

Accepted Answer

Input signal → Integrating center → Output signal → Response

Question 8

Which feedback loop is homeostatic and stabilizes a variable?

Accepted Answer

Negative feedback loop

Question 9

During childbirth, uterine contractions cause the release of oxytocin, which intensifies contractions. This is an example of:

Accepted Answer

Positive feedback

Question 10

Which fluid serves as a buffer zone between the outside world and the intracellular fluid?

Accepted Answer

Extracellular fluid (ECF)

Question 11

A researcher wants to compare the effect of three different diets on food intake in canaries. Which type of graph should be used?

Accepted Answer

Bar graph

Question 12

Which of the following best describes a crossover study?

Accepted Answer

Each individual serves as both the experimental subject and the control.

Question 13

Which organ system is responsible for removing water and waste material from the body?

Accepted Answer

Urinary (renal) system

Question 14

Which approach explains the 'why' of a physiological process?

Accepted Answer

Teleological approach

Question 15

Which of the following is NOT a theme in physiology?

Accepted Answer

All body compartments must be in equilibrium

Question 16

A scientist designs an experiment to test the effect of temperature on enzyme activity. What is the independent variable?

Accepted Answer

Temperature

Question 17

Which of the following best describes acclimatization?

Accepted Answer

Adaptation to environmental conditions occurring naturally

Question 18

Which of the following is a correct statement about compartmentation in physiology?

Accepted Answer

Compartmentation allows specialized functions to occur in different regions of the body.

Question 19

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

Accepted Answer

Coordinates body functions using hormones

Question 20

Which type of study analyzes data from multiple previous studies to draw a broader conclusion?

Accepted Answer

Meta-analysis

Introduction to Human Physiology: Principles, Organization, and Homeostasis

Study Guide - Practice Questions