Name: 
 

Chapter 9 Study Questions



Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 

The main energy-trapping molecule in plants is _____.
a.
chloroplast
c.
stroma
b.
chlorophyll
d.
carotenoids
 

 2. 

Chlorophyll traps _____ from sunlight.
a.
oxygen
c.
hydrogen
b.
energy
d.
glucose
 

 3. 

A green pigment that traps energy from sunlight is _____.
a.
carotenoid
c.
chlorophyll
b.
ATP
d.
thylakoid membranes
 

 4. 

Which sugar is a part of adenosine diphosphate?
a.
adenine
c.
glucose
b.
ribose
d.
glycogen
 

 5. 

Energy is released from ATP when the bond is broken between _____.
a.
two phosphate groups
c.
ribose and a phosphate group
b.
adenine and ribose
d.
adenine and a phosphate group
 

 6. 

Organisms need a way of storing energy because _____.
a.
a cell can't always immediately use all the energy it gets
b.
an organism often has times when no energy is used
c.
a cell can release only stored energy
d.
a cell cannot create energy and must get it from elsewhere in the organism
 

 7. 

In order to move molecules in your kidneys, your body needs _____.
a.
energy
c.
cold
b.
sunlight
d.
heat
 

 8. 

Kidneys use energy to move molecules and ions in order to keep the blood chemically balanced. This process is an example of cells using energy to _____.
a.
carry on chemosynthesis
c.
control body temperature
b.
transmit impulses
d.
maintain homeostasis
 

 9. 

Which of the following equations best represents photosynthesis?
a.
C + O2 + H2O ® CO2 + HOH
c.
6C + 6H2O ® C6H12O6
b.
6CO2 + 6H2O ® C6H12O6 + 6O2
d.
C6H12O6 ® 6CO2 + 6H2O
 

 10. 

Leaves appear green because the green portion of the light that strikes them is _____.
a.
changed to heat
c.
destroyed
b.
absorbed
d.
reflected
 

 11. 

Cells store energy when _____.
a.
the third phosphate group breaks off from an ATP molecule
b.
they break down sucrose to glucose and fructose
c.
a third phosphate group is bonded to an ATP molecule
d.
ions are released into the bloodstream
 

 12. 

Which of the following is not a part of adenosine diphosphate?
a.
glucose
c.
ribose
b.
adenine
d.
two phosphate groups
 



 
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