Part A Modified True/False
Indicate whether the sentence or statement is true or false.
If false, change the identified word or phrase to make the sentence
or statement true.
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1. |
An organ is a group of cells.
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2. |
Unicellular organisms are called
micro-organisms.
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3. |
Paramecium is a unicellular protist
that can make its own food.
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4. |
Cells divide when they get
too big.
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Part B Matching
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Match the following organisms/structures with
the statements below.
a. |
bacteria |
c. |
protists |
b. |
fungi |
d. |
viruses |
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5. |
athlete’s foot is caused by
this |
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6. |
only active when inside a living
cell |
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7. |
responsible for food spoilage
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8. |
one type can cause malaria
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Part C Multiple Choice
Identify the letter of the choice that best completes the
statement or answers the question.
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9. |
A substance produced by skin cells
that blocks sunlight is
a. |
melanin |
c. |
ribosome |
b. |
insulin |
d. |
lysosome |
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10. |
Red blood cells are made of
a. |
mucus |
c. |
hemoglobin |
b. |
pus |
d. |
antibodies |
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11. |
Most of the cytoplasm of which of
the following cells is occupied by vacuoles.
a. |
blood cells |
c. |
nerve cells |
b. |
fat cells |
d. |
muscle cells |
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12. |
Which of the following body systems
is responsible for destroying invaders?
a. |
respiratory system |
c. |
excretory system |
b. |
immune system |
d. |
circulatory system |
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13. |
Which type of cells engulf disease
organisms?
a. |
white blood cells |
c. |
nerve cells |
b. |
red blood cells |
d. |
epithelial cells |
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14. |
Plant cells with thin walls are found
in
a. |
leaves, flowers, fruits, and roots |
c. |
flowers, trunks, and branches |
b. |
leaves and trunks |
d. |
seeds, leaves, flowers, and trunks |
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Part D Short Answer
Use sentences to answer the following questions.
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15. |
Explain how tissues, organs and organ
systems are related.
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16. |
How is the function of a plant cell
determined by the thickness of the cell wall?
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17. |
How is the function of nerve tissue
related to its structure?
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18. |
Explain the steps of infection by
a virus in a host cell.
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19. |
Which organelle helps to destroy
pathogens? Describe the process.
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