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