Chapter 9:
Energy in a Cell
Practice Test
1.
The chloroplast molecule that absorbs light energy is __________.
a.
pyruvic acid
b.
chlorophyll
c.
thylakoid
d.
lactic acid
Hint
2.
Where does the citric acid cycle occur in the cell?
a.
inside the endoplasmic reticulum
b.
inside the mitochondria
c.
outside the cell
d.
in the cytoplasm
Hint
3.
Which base is a part of ATP?
a.
adenine
b.
phosphate
c.
alcohol
d.
thymin
Hint
4.
In order for muscles to contract in your body, you need __________.
a.
energy
b.
carbon dioxide
c.
sunlight
d.
heat
Hint
5.
Which of the following represents the most energy to a cell?
a.
ADP
b.
adenine
c.
ATP
d.
AMP
Hint
6.
Which of the following does NOT occur during photosynthesis?
a.
the Calvin cycle yields carbon dioxide
b.
the light reaction generates ATPs
c.
the Calvin cycle utilizes ATPs
d.
the light reaction utilizes chlorophyll
Hint
7.
At the end of glycolysis, what is the amount of ATP?
a.
gain of 4 ATPs
b.
loss of 4 ATPs
c.
loss of 2 ATPs
d.
gain of 2 ATPs
Hint
8.
Why must plants have a constant source of carbon dioxide?
a.
It is utilized in the synthesis of chlorophyll.
b.
It acts as a coenzyme in the process of photosynthesis.
c.
It is the final acceptor at the end of the Calvin cycle.
d.
It is utilized in the process of photosynthesis to make glucose.
Hint
9.
What is the function of nicotinamide dinucleotide phosphate (NADP
+
)?
a.
It is a molecule that adds phosphates to store energy for the cell.
b.
It picks up free hydrogen ions and electrons to carry them into the cell.
c.
It is the source of electrons for photosynthesis.
d.
It releases energy when it is combined with oxygen.
Hint
10.
The equation: C
6
H
12
O
6
+ 6O
2
--> 6CO
2
+ 6H
2
O represents a summary of __________.
a.
anaerobic fermentation
b.
photosynthesis
c.
aerobic respiration
d.
the Krebs cycle
Hint
11.
A red dress appears red because the red portion of the light that strikes it __________.
a.
is completely absorbed
b.
is reflected
c.
is destroyed
d.
is changed into bond energy
Hint
12.
At the end of the electron transport chain, the final electron acceptor is __________.
a.
oxygen
b.
hydrogen
c.
glucose
d.
water
Hint
13.
What are the products of respiration?
a.
carbon dioxide and water
b.
glucose and oxygen
c.
glucose and carbon dioxide
d.
water and oxygen
Hint
14.
Which of the following reactions break down glucose to release energy?
a.
Calvin cycle
b.
light dependent reactions
c.
photolysis
d.
lactic acid fermentation
Hint
15.
Ribose, adenine and two phosphate groups combine to make __________.
a.
adenosine
b.
ADP
c.
sucrose
d.
ATP
Hint
