Question 1

In photosynthesis,the oxygen atoms in H2O are

Accepted Answer

A)  energized.
B)  reduced.
C)  reformed into other elements.
D)  oxidizeD.
E)  broken down.F) A) and B)
G) All of the above

Question 2

What is the gelatinous matrix inside chloroplasts that contains ribosomes,DNA,and enzymes?

Accepted Answer

A)  granum
B)  chlorophyll
C)  thylakoid
D)  stroma
E)  mitochondriaF) A) and C)
G) A) and D)

Question 3

When NADP+ _____ electrons and hydrogen ions in the light reactions,NADPH is formed through _____.

Accepted Answer

A)  donates,oxidation
B)  accepts,oxidation
C)  donates,reduction
D)  accepts,reductionE) C) and D)
F) A) and D)

Question 4

C4 plants and CAM plants fix carbon in a larger molecule twice during photosynthetic reactions.

Accepted Answer

A) True 
 B)False

Question 5

Examples of photosynthetic accessory pigments are

Accepted Answer

A)  chlorophyll b and carotenoids.
B)  chlorophyll a and carotenoids.
C)  chlorophyll a and chlorophyll b.
D)  carotenoids,chlorophyll a,and chlorophyll b.
E)  mitochondria.F) None of the above
G) A) and C)

Question 6

Light consists of discrete packets of kinetic energy called

Accepted Answer

A)  photons.
B)  protons.
C)  electrons.
D)  lasers.
E)  grana.F) All of the above
G) C) and D)

Question 7

Match the steps of photosynthesis with the correct descriptions.

Accepted Answer

The answer of Match the steps of photosynthesis with the...

Question 8

The primary pigment molecule needed for photosynthesis is

Accepted Answer

A)  sunlight.
B)  oxygen.
C)  carbon dioxide.
D)  glucose.
E)  chlorophyll a.F) A) and B)
G) A) and C)

Question 9

Why are accessory pigments necessary in photosystems?

Accepted Answer

A)  They capture a wider spectrum of wavelengths of light.
B)  They donate electrons to the reaction center.
C)  They split water into hydrogen ions and oxygen.
D)  They conduct the carbon reactions of photosynthesis.E) A) and C)
F) B) and C)

Question 10

The primary photosynthetic pigment molecule,chlorophyll a,is an orange pigment.

Accepted Answer

A) True 
 B)False

Question 11

How do CAM plants minimize photorespiration?

Accepted Answer

A)  The light reactions and carbon reactions occur in different cells,so carbon dioxide does not come into contact with rubisco.
B)  The light reactions and carbon reactions occur in different cells,so oxygen does not come into contact with rubisco.
C)  Stomata are open only at night and oxygen is stored in a four-carbon compound.During the day the carbon dioxide is released for photosynthesis.
D)  Stomata are open only at night and carbon dioxide is stored in a four-carbon compounD.During the day the carbon dioxide is released for photosynthesis.E) A) and D)
F) A) and C)

Question 12

The carbon reactions produce ATP and NADPH.

Accepted Answer

A) True 
 B)False

Question 13

Electrons excited in photosystem II help the chloroplast produce

Accepted Answer

A)  water.
B)  NADPH.
C)  glucose.
D)  NADH.
E)  ATP.F) B) and E)
G) A) and C)

Question 14

Based on the structure of chlorophyll (Figure 5.5) ,where would you expect to find it in a cell?

Accepted Answer

A)  in the cell wall
B)  in the cytoplasm
C)  in a membrane
D)  in the stroma
E)  attached to a proteinF) A) and B)
G) A) and D)

Question 15

Organisms that make their own organic compounds from inorganic substances are called

Accepted Answer

A)  animals.
B)  animorphs.
C)  heterotrophs.
D)  autotrophs.E) A) and B)
F) A) and C)

Question 16

Which organism's life depends on photosynthesis?

Accepted Answer

A)  corals
B)  oak trees
C)  humans
D)  sea slug Elysia chlorotica
E)  All answers are correct.F) B) and D)
G) A) and D)

Question 17

What is the relationship between photosynthesis and cellular respiration?

Accepted Answer

A)  The reactants of photosynthesis are the products of cellular respiration and the reactants of cellular respiration are the products of photosynthesis.
B)  Organisms conduct either photosynthesis or cellular respiration to produce food.
C)  Organisms conduct either photosynthesis or cellular respiration to produce energy.
D)  Photosynthesis is a step within cellular respiration.
E)  Cellular respiration is a step within photosynthesis.F) A) and D)
G) None of the above

Question 18

What is a product of reactions that take place at photosystem II?

Accepted Answer

A)  NADPH
B)  water
C)  oxygen
D)  ADP
E)  glucoseF) A) and B)
G) B) and C)

Question 19

Blue light has ___ energy than red light,but both forms of light are ____ by green leaves.

Accepted Answer

A)  less,reflected
B)  less,absorbed
C)  more,reflected
D)  more,absorbedE) B) and D)
F) All of the above

Question 20

When NADPH _____ electrons and hydrogen ions in the carbon reactions,NADP+ is formed through _____.

Accepted Answer

A)  accepts,reduction
B)  donates,oxidation
C)  accepts,oxidation
D)  donates,reductionE) A) and B)
F) A) and D)

Exam 5: Photosynthesis

C4 plants and CAM plants fix carbon in a larger molecule twice during photosynthetic reactions.

Correct AnswerverifiedShow Answer

The carbon reactions produce ATP and NADPH.

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Match the steps of photosynthesis with the correct descriptions.

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Organisms that make their own organic compounds from inorganic substances are called

Correct AnswerverifiedShow Answer

Based on the structure of chlorophyll (Figure 5.5) ,where would you expect to find it in a cell?

Correct AnswerverifiedShow Answer

The primary photosynthetic pigment molecule,chlorophyll a,is an orange pigment.

Correct AnswerverifiedShow Answer

The primary pigment molecule needed for photosynthesis is

Correct AnswerverifiedShow Answer

Electrons excited in photosystem II help the chloroplast produce

Correct AnswerverifiedShow Answer

In photosynthesis,the oxygen atoms in H2O are

Correct AnswerverifiedShow Answer

Examples of photosynthetic accessory pigments are

Correct AnswerverifiedShow Answer

Light consists of discrete packets of kinetic energy called

Correct AnswerverifiedShow Answer

When NADP+ _____ electrons and hydrogen ions in the light reactions,NADPH is formed through _____.

Correct AnswerverifiedShow Answer

What is the relationship between photosynthesis and cellular respiration?

Correct AnswerverifiedShow Answer

How do CAM plants minimize photorespiration?

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Blue light has ___ energy than red light,but both forms of light are ____ by green leaves.

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What is a product of reactions that take place at photosystem II?

Correct AnswerverifiedShow Answer

What is the gelatinous matrix inside chloroplasts that contains ribosomes,DNA,and enzymes?

Correct AnswerverifiedShow Answer

Which organism's life depends on photosynthesis?

Correct AnswerverifiedShow Answer

When NADPH _____ electrons and hydrogen ions in the carbon reactions,NADP+ is formed through _____.

Correct AnswerverifiedShow Answer

Why are accessory pigments necessary in photosystems?

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C₄ plants and CAM plants fix carbon in a larger molecule twice during photosynthetic reactions.

Correct Answer
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In photosynthesis,the oxygen atoms in H₂O are

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When NADP⁺ _ electrons and hydrogen ions in the light reactions,NADPH is formed through _.

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Blue light has _ energy than red light,but both forms of light are __ by green leaves.

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When NADPH _ electrons and hydrogen ions in the carbon reactions,NADP⁺ is formed through _.

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