Transcript NC Practice EOC Exam

NC Practice EOC Exam
1. Which of the following is a characteristic
found only in living things?
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A. requires energy
B. is able to grow
C. composed of cells
D. responds to the environment
The correct answer is….
 C
2. A saltwater fish is placed into a freshwater
lake will die soon afterwards. Why does this
happen?
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A. The saltwater fish is unable to adapt to changes
in temperature.
B. The saltwater fish is unable to adapt to changes
in pH.
C. The saltwater fish is unable to adapt to changes
in salinity.
D. The saltwater fish is unable to adapt to changes
in nutrient concentration.
The correct answer is….
C
3. What will happen to a freshwater fish place in
saltwater?
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A. The fish will dehydrate.
B. The fish will gain water.
C. The fish will neither gain nor lose water.
D. The fish will gain water at first and then
lose it.
The correct answer is….
A
4. Why will a lizard bask in the sun?
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A. to absorb ultraviolet radiation?
B. to attract members of the opposite sex
C. to avoid predators by camouflage
D. to help the lizard maintain homeostasis.
The correct answer is…..
D
5. The following reaction occurs during the light
reactions of photosynthesis. What does this
equation represent?
Waterhydrogen+ oxygen
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A. making bonds, storing energy
B. making bonds, releasing energy
C. breaking bonds, storing energy
D. breaking bonds, releasing energy
The correct answer is…
D
6. During cellular respiration, a great deal of
energy is released into the cell. What form does
that energy take?
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A. ATP
B. glucose
C. heat
D. light
The correct answer is…..
A
7. The complementary strands of DNA are held
together by what type of bond?
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A. ionic
B. covalent
C. hydrogen
D. nonpolar
The correct answer is……
C
8. Water striders, a type of aquatic insect, are
able to walk on top of water. What
characteristics of water enables them to do this?
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A. Water is the universal solvent.
B. Hydrogen bonds help water molecules to
stick to each other.
C. Ice is less dense that liquid water.
D. Water boils at 100C and freezes at 0C.
The correct answer is….
B
9.Which of the following is a subunit of a lipid?
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A. amino acids
B. fatty acids
C. glucose
D. steroid
The correct answer is…..
B
10. Which of the following is a subunit of a
carbohydrate?
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A. cellulose
B. glucose
C. glycogen
D. starch
The correct answer is…
B
11. Which of the following is a subunit of a
protein?
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A. amino acid
B. fatty acid
C. glucose
D. glyercol
The correct answer is…
A
12. DNA and RNA are made up of subunits.
What would one of these subunits be called?
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A. chromosome
B. nucleic acid
C. nucleosome
D. nucleotide
The correct answer is…
D
13.Which of the following statements most
closely represents what an organic compound is?
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A. usually contains carbon and associated with nonliving things
B. usually contains water and associated with living
things
C. usually contains carbon and associated with living
things
D. usually contains water and associated with non-living
things.
The correct answer is…
C
14. In humans, where does the majority of our
energy come from?
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A. carbohydrates
B. lipids
C. nucleic acids
D. protein
The correct answer is…
A
15. What food group supplies the necessary
materials for growth and repair of living cells?
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A. carbohydrates
B. lipids
C. proteins
D. water
The correct answer is…
C
16. Long term energy storage is provided by
what group of organic molecules?
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A. carbohydrates
B. lipids
C. proteins
D. water
The correct answer is…
B
17. Which of the following would be considered
an inorganic molecule?
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A. carbohydrates
B. lipids
C. proteins
D. water
The correct answer is …
D
18. Which of the following pairs of cell organelles
is correctly matched with its function?
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A. nucleus – reproduction
B.mitochondria – protein synthesis
C. ribosomes – storage
D. vacoules – photosynthesis
The correct answer is…
A
19. Cells lacking a cell wall would also lack which
other organelle?
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A. nucleus
B. cell membrane
C. chloroplast
D. ribosomes
The correct answer is…
C
20. Which part of the compound microscope
controls the amount of light that reaches the
specimen?
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A. condenser
B. diaphragm
C. objective lens
D. ocular
The correct answer is…
B