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WorksheetsHuman Body Review1
Total questions: 20
Worksheet time: 13mins
Name
Class
Date
1.
Which best describes the purpose of the respiratory system?
a)
to supply oxygen to cells
b)
to supply protection to organs
c)
to supply food and nutrients to the body
d)
to supply blood to the brain and muscles
2.
Which best describes a single-celled organism?
a)
a small group of organisms
b)
a small organism with a variety of parts
c)
an organism that relies on other organisms to survive
d)
an organism that is able to carry out all its life processes
3.
A single-cell organism can do everything a cell from a multicellular organism can do EXCEPT
a)
specialize
b)
reproduce
c)
use energy
d)
make protein
4.
Which best describes the purpose of the cardiovascular system?
a)
It delivers blood to the body’s tissues.
b)
It supplies stability to the skeleton.
c)
It delivers food to power the body.
d)
It supplies oxygen to the body.
5.
In which system does the heart work to move blood throughout the body?
a)
digestive system
b)
muscular system
c)
respiratory system
d)
cardiovascular system
6.
Why do humans require many different types of cells to survive?
a)
Human cells are identical and work together to perform the same function.
b)
Human cells are specialized and work together to perform the same function.
c)
Human cells are identical and work independently to perform different functions.
d)
Human cells are specialized and work independently to perform different functions.
7.
If you read about an organism with a respiratory system, digestive system, skeletal system, and muscular system. Which can you most likely conclude about this organism?
a)
The organism is unicellular.
b)
This organism is microscopic.
c)
The organism is multicellular.
d)
The organism does not have any cells.
8.
Is it possible for an organism to survive with only one cell?
a)
no, because organisms need many cells to be able to perform functions for life
b)
yes, as long as the organisms can perform all functions needed for life in that one cell
c)
no, because organisms cannot complete all necessary functions for life in such a small space
d)
yes, as long as the organism has multiple specialized parts with each performing a specific function
9.
Which best describes the role of a cell in a complex organism?
a)
Each cell has one specialized function and is independent of other cells.
b)
Each cell is able to carry out all the functions necessary for life, without other cells.
c)
Every cell has the same function, and cells work together to allow the organism to survive.
d)
Each cell has one specialized function, and cells work together to allow the organism to survive.
10.
The circulatory system transports waste through the bloodstream. Which is the best example of another system working to remove waste from the body?
a)
The respiratory system releases carbon dioxide.
b)
The skeletal system produces new red blood cells.
c)
The digestive system breaks down food into nutrients.
d)
The nervous system send signals from the brain to the muscles.
11.
Which statement would most likely be found in an article about multicelled organisms like plants?
a)
Plants have a simple structure.
b)
Plants contain only one cell that performs all functions.
c)
Plants do not need to eat, remove waste, or reproduce.
d)
Plants contain many specialized cells that perform different functions.
12.
Which best explains why single-celled organisms like bacteria never perform complex tasks like walking?
a)
Bacteria lack the energy to perform complex tasks.
b)
Bacteria grow too slowly to perform complex tasks.
c)
Bacteria lack the specialized cells necessary to perform complex tasks.
d)
Bacteria do not grow large enough to be able to perform complex tasks.
13.
Which best describes the purpose of the muscular system?
a)
The muscular system carries messages from the brain to the bones to move the body.
b)
The muscular system keeps the bones strong and protects them from being broken.
c)
The muscular system produces energy the body needs to be able to move.
d)
The muscular system allows movement of bones and helps maintain posture.
14.
Which body system carries signals to and from the brain?
a)
respiratory
b)
circulatory
c)
nervous
d)
skeletal
15.
Which system removes waste produced by cells from the respiratory system?
a)
nervous
b)
skeletal
c)
circulatory
d)
cardiovascular
16.
Which system of the human body provides protection to most of the major organs?
a)
skeletal system
b)
circulatory system
c)
respiratory system
d)
muscular system
17.
How does the skeletal system benefit the nervous system?
a)
It protects the lungs.
b)
It protects the heart.
c)
It protects the brain and spinal cord.
d)
It protects the esophagus and stomach.
18.
How does the muscular system help the digestive system?
a)
It provides oxygen to the blood.
b)
It provides carbon dioxide to the blood.
c)
It provides movement and flexibility by contracting and relaxing.
d)
It provides protection from the environment
19.
Which two systems work together to help a person stand erect?
a)
skeletal and muscular
b)
skeletal and digestive
c)
skeletal and respiratory
d)
skeletal and cardiovascular
20.
Which two systems work to move oxygen?
a)
circulatory and respiratory
b)
respiratory and muscular
c)
skeletal and digestive
d)
muscular and skeletal
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