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Cells Ch. 2 A
Test Description: Cells Ch. 2 A
Instructions: Answer all questions to get your test result.
1) What are the products of photosynthesis?
A
carbon dioxide and sugars
B
oxygen and water
C
oxygen and sugars
D
carbon dioxide and water
2) What happens during photosynthesis?
A
The cell uses oxygen to make food.
B
The cell uses the energy in sunlight to make carbon dioxide.
C
The cell uses glucose to make oxygen.
D
The cell uses the energy in sunlight to make food.
3) What happens during respiration?
A
Carbohydrates are released into the bloodstream.
B
Glucose is broken down, releasing energy.
C
Water and carbon dioxide are converted into energy.
D
Oxygen is released into the air.
4) How are photosynthesis and respiration related?
A
They both produce carbon dioxide.
B
They have opposite equations.
C
They have the same equation.
D
They both produce oxygen.
5) Together, respiration and photosynthesis keep the levels of carbon dioxide and oxygen in the atmosphere
A
constantly changing
B
fairly constant
C
constantly decreasing
D
constantly increasing
6) The energy-releasing process that does not require oxygen is called
A
respiration
B
fermentation
C
photosynthesis
D
fertilization
7) Under which of the following conditions is lactic-acid fermentation most likely to occur?
A
a long walk
B
a very fast run
C
playing video games
D
sleeping
8) Mitosis is the stage of the cell cycle during which
A
the cell divides into two new cells.
B
the cell’s cytoplasm divides.
C
the cell’s nucleus divides into two new nuclei.
D
the cell’s DNA is replicated.
9) A DNA molecule is shaped like a
A
spiral staircase
B
straight ladder
C
triple helix
D
long thin rod
10) Cancer is a disease in which cells
A
die before they can mature.
B
grow and divide uncontrollably.
C
stop producing DNA.
D
die during mitosis.
*select an answer for all questions
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