Glencoe Biology

Chapter 8: Cellular Energy

Chapter Test Practice

1
What does the first law of thermodynamics state?
A)entropy increases
B)energy is conserved
C)metabolism decreases
D)chemicals are produced
2
All of the chemical reactions in an organism's cells are called ____.
A)chemotrophy
B)autotrophy
C)metabolism
D)thermodynamics
3
Autotrophs that convert light energy into chemical energy are called ____.
A)photoautotrophs
B)heterotrophs
C)chemoautotrophs
D)omnivores
4
Glycolysis is a (an) ____ process in the first stage of photosynthesis.
A)anaerobic
B)aerobic
C)non-metabolic
D)non-energy
5
In lactic acid fermentation, ____ is converted to lactic acid.
A)alcohol
B)pyruvate
C)citric acid
D)sunlight
6
Light-absorbing colored molecules called ____ are found in chloroplasts.
A)pigments
B)stroma
C)rubisco
D)ATPs
7
What anaerobic process occurs after glycolysis?
A)electron transport
B)Krebs cycle
C)fermentation
D)prokaryotic respiration
8
What catabolic reaction is occurring in this cycle?

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A)photosynthesis
B)cellular respiration
C)absorption of sunlight
D)conversion of sunlight
9
What cellular process actually produces most of the ATP?
A)absorption of light
B)Krebs cycle
C)fermentation
D)electron transport
10
What chemical bond in ATP releases energy when broken?
A)phosphate
B)sulfur
C)oxygen
D)potassium
11
What is an important substance used in this reaction?

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A)citric acid
B)chlorophyll
C)solar energy
D)sulphuric acid
12
What is being measured in this graph?

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A)ability of light to absorb chlorophyll
B)pigment absorbance at different light wavelengths
C)ability of plants to withstand heat
D)amount of useable chlorophyll in a plant
13
What occurs in the second phase of photosynthesis?
A)chemiosmosis produces ATP
B)light absorbed
C)light converted to ATP
D)glucose made from ATP
14
Where do light-independent reactions occur during photosynthesis?
A)mitochondrion
B)stroma in vacuoles
C)nucleus
D)stroma in thylakoids
15
Which of these statements is true regarding chlorophyll?
A)It is not the only photosynthetic pigment.
B)There is only one kind of chlorophyll.
C)It is the only type of pigment in leaves.
D)It is the rarest type of pigment in leaves.
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