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TEST NAME: Body Systems PreTest
TEST ID: 645471
GRADE: 07
SUBJECT: Life and Physical Sciences
TEST CATEGORY: School Assessment
Body Systems PreTest
Page 1 of 9
Student: Class:
Date:
1. Which is one reason why the heart pumps faster during exercise?
A.
the need for increased digestion to provide fuel
B.
the elevated demand for fuel and oxygen in the muscles
C.
the decreased demand for blood flow to central nervous system
D.
the contraction of blood vessels to muscles, increasing blood pressure
2. Cells need nutrients for energy. Which system is responsible for breaking down food to provide cellular
energy?
A.
digestive
B.
excretory
C.
circulatory
D.
respiratory
3. Which of the following results when a person’s hand is near an open flame?
A.
Motor neurons activating the muscles of the hand cause the hand to move.
B.
Sensory neurons process incoming information and determine a response.
C.
The brain is required to integrate incoming and outgoing information.
D.
Interneurons detect the change in temperature of the environment.
4. Which of these is a function of T­lymphocytes?
A.
release antibodies to immobilize antigens
B.
destroy pathogens through phagocytosis
C.
release chemicals to cause the death of an infected cell
D.
provide a barrier to prevent pathogens from entering the body’s tissues
Body Systems PreTest
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5. The diagram shows an organ in the human body.
This organ is most responsible for filtering which substance from the blood?
A.
carbon dioxide gas
B.
wastes that form urine
C.
calcium to be used for repairing bones
D.
nutrients from food needed by other cells
6. Look at the diagram.
What does the diagram model?
A.
a virus
B.
a bacterium
C.
a plant cell
D.
an animal cell
Body Systems PreTest
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7. Which of these is the basic building block of complex organisms?
A.
a cell
B.
a tissue
C.
an organ
D.
an organ system
8. Which of the following indicates the correct representation of the levels of organization in living systems?
A.
ecosystems → organs → organisms → tissues → cells → organ systems
B.
tissues → cells → organ systems → organisms → organs → ecosystems
C.
organisms → tissues → organ systems → cells → organs → ecosystems
D.
cells → tissues → organs → organ systems → organisms → ecosystems
9. Which of the following allows materials to enter and leave a cell?
A.
cell wall
B.
mitochondria
C.
vacuole
D.
cell membrane
10. The diagram shows several structures in the human body.
When each structure works together to perform a function, they make up what level of organization?
A.
cellular
B.
organ
C.
system
D.
tissue
11. Agnes learned that the brain, spinal cord, and nerves work together. What do they combine to form?
A.
a cell
B.
a tissue
C.
an organ
D.
a system
Body Systems PreTest
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12. The human body temperature is normally 98.6°F. As a person exercises, the body temperature starts to
increase. As a result of the increased body temperature, the perspiration process begins to cool the body.
Which best describes what the body is doing when it perspires?
A.
increasing osmosis
B.
reducing transpiration
C.
controlling metabolism
D.
maintaining homeostasis
13. While running, leg muscles work to move leg bones, and the skin helps to
A.
regulate body temperature.
B.
sense small changes in the heart rate.
C.
transport nutrients to muscles.
D.
maintain oxygen levels in the blood.
14. Which of these systems functions to protect and support vital organs?
A.
digestive
B.
skeletal
C.
nervous
D.
excretory
15. Which statement describes a function of bones in mammals such as dogs and horses?
A.
Bones provide protection for organs in the body.
B.
Bones send messages to the brain to move the muscles.
C.
Bones carry oxygen­rich blood throughout the body.
D.
Bones connect the brain and the spinal cord.
16. Which statement best describes the primary role of perspiration in humans?
A.
Perspiration rids the body of excess water.
B.
Perspiration eliminates bacteria from the skin.
C.
Perspiration opens skin pores to absorb more oxygen.
D.
Perspiration helps to maintain a stable body temperature.
17. Which cells help to destroy pathogens such as bacteria that enter the human body?
A.
red blood cells
B.
liver cells
C.
white blood cells
D.
brain cells
18. Which human body systems are most directly involved when a person is walking?
A.
muscular and nervous
B.
excretory and respiratory
C.
circulatory and endocrine
D.
digestive and reproductive
Body Systems PreTest
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19. What is the role of the kidneys in the excretory system?
A.
to digest food
B.
to remove toxins
C.
to produce bile
D.
to oxygenate blood
20. When a soccer player kicks a ball, which two systems work directly with the muscular system?
A.
immune and excretory
B.
digestive and respiratory
C.
nervous and skeletal
D.
circulatory and integumentary
21. Oxygen­poor blood flows out of the heart and into the lungs. Nutrients and oxygen are sent to other cells and
parts of the body. The blood then returns to the heart to begin the process again. Which of the body’s
systems is the above process describing?
A.
the skeletal system
B.
the digestive system
C.
the respiratory system
D.
the circulatory system
22. Rheumatoid arthritis is a disease that occurs when the body attacks its own tissues. Which body
system becomes disordered first?
A.
immune
B.
nervous
C.
digestive
D.
circulatory
23. Which body system is responsible for breaking down food into molecules that it absorbs?
A.
digestive
B.
circulatory
C.
respiratory
D.
lymphatic
24. What part of the body receives information from the senses?
A.
heart
B.
brain
C.
lungs
D.
stomach
25. Which two systems are involved when waste and water are removed from blood as it flows through the
kidneys?
A.
respiratory and circulatory
B.
digestive and respiratory
C.
digestive and urinary
D.
urinary and circulatory
Body Systems PreTest
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26. Heart disease can result in a reduced amount of oxygen moving properly through the body. Which body
system does heart disease most directly affect?
A.
skeletal
B.
excretory
C.
circulatory
D.
nervous
27. Which type of tissue functions to move the bones?
A.
skin
B.
blood
C.
muscle
D.
brain
28. The circulatory system is composed of blood vessels that travel from the heart to the rest of the body and
back to the heart. Why does blood make a complete loop throughout the body?
A.
so blood can fill all internal organs
B.
so blood can distribute fat to all of the arteries
C.
to carry nutrients throughout the body and remove wastes
D.
so carbon dioxide and wastes can be circulated throughout the entire body
29. On a class field trip, Zach took a walk through the woods using his senses. Zach made observations on the
different sights, smells, and sounds in the woods. What system transferred the observations from his
senses to his brain?
A.
nervous system
B.
digestive system
C.
circulatory system
D.
respiratory system
30. The heart is the major organ of the circulatory system. Which part of the body is responsible for delivering
de­oxygenated blood to the heart?
A.
arteries
B.
capillaries
C.
valves
D.
veins
31. One system of the human body works along with the skeletal system by assisting movement and
maintaining posture. Which system is being described?
A.
respiratory
B.
circulatory
C.
muscular
D.
digestive
32. Why does the brain of mammals keep track of the temperature of the skin and the blood?
A.
to control the activity level of the animal
B.
to guide the animal to warmer or colder locations
C.
to maintain a stable body temperature regardless of air temperature
D.
to regulate breathing rate and heart rate in extreme temperature conditions
Body Systems PreTest
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33. Arteries and veins are two important parts of the circulatory system. What is the relationship between
arteries and veins?
A.
They work together to exchange gases.
B.
They work together to transport nutrients.
C.
They work independently to remove wastes.
D.
They work independently to relay messages.
34. Cells perform many different processes that an organism needs to survive and grow. Which is the main
function of the process of cellular respiration?
A.
the production of sugar
B.
the release of energy
C.
the formation of new proteins for the cell
D.
the removal of waste products from the cell
35. An athlete is running a race. The athlete’s body needs energy. Which organelle(s) in the athlete’s cells
supply the energy for cellular functions?
A.
Golgi apparatus
B.
mitochondrion
C.
ribosome
D.
nucleus
36. A paramecium and an amoeba are shown below.
An amoeba eats by surrounding its food with its body. How does a paramecium eat differently than an
amoeba?
A.
A paramecium captures food with a vacuole.
B.
A paramecium sweeps food into its oral groove.
C.
A paramecium makes its food using photosynthesis.
D.
A paramecium secretes enzymes to break food down.
37. Dominic is observing a volvox colony and a paramecium under a microscope. He makes a note in his journal
that the volvox colony and the paramecium are similar because they have many organelles for movement.
What would Dominic most likely notice about the movement of a volvox colony and a paramecium?
A.
They both move at the same rate.
B.
They both move away from light.
C.
They both move in the same direction.
D.
They both move toward an energy source.
Body Systems PreTest
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38. Which characteristic does a euglena share with an amoeba?
A.
They reproduce by mitosis.
B.
They eat by phagocytosis.
C.
They respond to light stimuli.
D.
They move by changing shape.
39. Which protist is a bi­flagellate autotroph?
A.
amoeba
B.
euglena
C.
paramecium
D.
volvox
40. Which characteristic can an amoeba change that a paramecium cannot change?
A.
sex
B.
shape
C.
color
D.
position
Body Systems PreTest
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