BIOL 250 A&P Quizzes with Answers- American Public University

Quiz 1
Question 1 of 25 4.0/ 4.0 Points
What are the tiny functioning units found within the cytoplasm called?
A. Organisms
B. Organelles
C. Organ systems
D. Organs

Question 2 of 25 4.0/ 4.0 Points
What is human physiology?
A. The scientific study of the body's conditions.
B. The scientific study of the body's purposes.
C. The scientific study of the body's functions.
D. The scientific study of the body's structures.

Question 3 of 25 4.0/ 4.0 Points
What percentage of atmospheric air is composed of oxygen?
A. 30
B. 50
C. 20
D. 40

Question 4 of 25 4.0/ 4.0 Points
A group of many similar cells that work together to perform a specific function is referred to
as this level of organization.
A. Chemical
B. Organ
C. Cellular
D. Tissue

Question 5 of 25 4.0/ 4.0 Points
Which organ system is responsible for removing carbon dioxide from the body and delivering
oxygen to blood?
A. Lymphatic system
B. Respiratory system
C. Cardiovascular system
D. Muscular system

,Question 6 of 25 4.0/ 4.0 Points
Which organ system is responsible for detecting and processing sensory information and
activating bodily responses?
A. Endocrine system
B. Reproductive system
C. Integumentary system
D. Nervous system

Question 7 of 25 4.0/ 4.0 Points
Which organ system is responsible for processing food used by the body and removing waste
from undigested food?
A. Digestive system
B. Urinary system
C. Respiratory system
D. Reproductive system

Question 8 of 25 4.0/ 4.0 Points
Water makes up approximately what percentage of an adult's body mass?
A. 85
B. 70
C. 50
D. 25

Question 9 of 25 4.0/ 4.0 Points
The state of steady internal conditions maintained by living things is called this.
A. Homostasis
B. Homeostatic
C. Homosapien
D. Homeostasis

Question 10 of 25 4.0/ 4.0 Points
How many "functions" of human life are there?
A. 6
B. 5
C. 4
D. 3

Question 11 of 25 4.0/ 4.0 Points
What is the smallest independently functioning unit of a living organism?
A. Element
B. Organ
C. Atom
D. Cell

,Question 12 of 25 4.0/ 4.0 Points
What is the metabolic process whereby smaller, simpler molecules are combined into larger,
more complex substances?
A. Differentiation
B. Anabolism
C. Organization
D. Catabolism

Question 13 of 25 4.0/ 4.0 Points
Which organ system is responsible for returning fluid to blood and defending against
pathogens?
A. Cardiovascular system
B. Lymphatic system
C. Respiratory system
D. Digestive system

Question 14 of 25 4.0/ 4.0 Points
What is the most critical nutrient for the human body?
A. Lipids
B. Proteins
C. Carbohydrates
D. Water

Question 15 of 25 4.0/ 4.0 Points
Which organ system is responsible for enabling movement and helping to maintain body
temperature?
A. Muscular system
B. Skeletal system
C. Cardiovascular system
D. Nervous system

Question 16 of 25 4.0/ 4.0 Points
Which organ system is responsible for enclosing internal body structures and is the site of
many sensory receptors?
A. Skeletal system
B. Nervous system
C. Muscular system
D. Integumentary system

, Question 17 of 25 4.0/ 4.0 Points
What is the study of the larger structures of the body, visible WITHOUT the aid of
magnification?
A. Regional anatomy
B. Systemic anatomy
C. Gross anatomy
D. Microscopic anatomy

Question 18 of 25 4.0/ 4.0 Points
The body system responsible for structural support and movement is the ________.
A. endocrine system
B. gastrointestinal system
C. muscular system
D. skeletal system
E. cardiovascular system

A collection of similar tissues that performs a specific function is an ________.
A. organ
B. specific tissue
C. organ system
D. organelle
E. organism

Question 20 of 25 4.0/ 4.0 Points
Which of the following statement(s) is(are) correct?
A. Anabolism is a process in which complex structures or molecules are broken down into
much simpler ones.
B. Catabolism is a process in which simple molecules can be combined to form more
complex molecules or tissues.
C. Metabolism is the sum of all anabolic and catabolic reactions that take place in the body.
D. A waste product of all the reactions that take place in a cell is the molecule ATP.
E. All of the above statements are correct.

Question 21 of 25 4.0/ 4.0 Points
The smallest independently functioning unit of a living organism is a(an):
A. organ
B. cell
C. tissue
D. molecule
E. atom