Question 1

If you were planning to extract chlorophyll from cells,what would be the best starting material?

Accepted Answer

A)  leaves
B)  bark
C)  roots
D)  stems
E)  No answer is correct.

Question 2

The main product of the carbon reactions is

Accepted Answer

A)  oxygen.
B)  NADPH.
C)  carbon dioxide.
D)  a carbohydrate.
E)  ATP.

Question 3

The Calvin cycle

Accepted Answer

A)  is a cyclic pathway that produces three-carbon carbohydrates from CO2.
B)  is a linear pathway that produces three-carbon carbohydrates from CO2.
C)  is a cyclic pathway that produces ATP and NADPH.
D)  is a linear pathway that produces ATP and NADPH.

Question 4

The sea slug Elysia chlorotica absorbs chloroplasts as it digests algae,allowing the sea slug to live on sunlight and carbon dioxide.This suggests that for both light and carbon reactions

Accepted Answer

A)  photosynthesis can occur from proteins released from a digested chloroplast.
B)  regions of a plant outside of the chloroplast are necessary for photosynthesis.
C)  chloroplasts alone are sufficient for photosynthesis.
D)  some of the algae are not digested and are living symbiotically inside of the sea slugs.
E)  photosynthesis can occur outside of a chloroplast in algaE.

Question 5

If oxygen could be traced,the oxygen in the water in a leaf would end up in carbohydrates after photosynthesis.

Accepted Answer

A) True 
 B)False

Question 6

Which does not usually increase in overall abundance as a result of photosynthesis?

Accepted Answer

A)  carbon dioxide
B)  glucose
C)  sunlight
D)  ATP
E)  oxygen

Question 7

The main product of photosynthesis used by plants is

Accepted Answer

A)  glucose.
B)  oxygen.
C)  carbon dioxide.
D)  chlorophyll.
E)  sunlight.

Question 8

The reactants of photosynthesis are

Accepted Answer

A)  oxygen and glucose.
B)  water and carbon dioxide.
C)  chlorophyll and oxygen.
D)  glucose and water.
E)  glucose and oxygen.

Question 9

Herbicides may kill plants by

Accepted Answer

A)  blocking carotenoid synthesis.
B)  blocking electron flow in photosystem II.
C)  diverting electrons away from photosystem I.
D)  interfering with amino acid synthesis.
E)  All answers are correct.

Question 10

The main byproduct of photosynthesis that is essential to most life forms is

Accepted Answer

A)  glucose.
B)  carbon dioxide.
C)  chlorophyll.
D)  oxygen.
E)  sunlight.

Question 11

Tiny openings in the epidermis of the leaf that allow air to enter into the leaf are called

Accepted Answer

A)  thylakoids.
B)  stroma.
C)  stomata.
D)  grana.
E)  thylakoid spaces.

Question 12

If you were asked to sort cards into drawers,into a drawer marked "Packets of Light" would go any card referring to

Accepted Answer

A)  photons.
B)  protons.
C)  electrons.
D)  lasers.
E)  grana.

Question 13

What part of the chloroplast has photosynthetic pigments in its membrane?

Accepted Answer

A)  granum
B)  mesophyll
C)  chlorophyll
D)  thylakoid
E)  stroma

Question 14

The light reactions produce ATP,while the carbon reactions consume it.

Accepted Answer

A) True 
 B)False

Question 15

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

Accepted Answer

A) True 
 B)False

Question 16

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

Accepted Answer

A)  animals.
B)  animorphs.
C)  heterotrophs.
D)  autotrophs.

Question 17

What is released at each step of an electron transport chain?

Accepted Answer

A)  ultraviolet wavelengths
B)  electrons
C)  photons
D)  energy
E)  All answers are correct.

Question 18

The reactions of photosynthesis are summarized as

Accepted Answer

A)  6CO2 + 6H2O →C6H12O6 + 6O2.
B)  6CO + 6H2O →C6H12O6 + 6H2O.
C)  12CO2 + 6H2O →C12H12O6 + 6H2O.
D)  6CO + 6H2O →C6H12O?6 + 6O2.
E)  No answer is correct.

Question 19

How would Earth be different without photosynthesis?

Accepted Answer

A)  The amount of oxygen in the atmosphere would be lower.
B)  Heterotrophs would have few food sources.
C)  Autotrophs would reply on other chemical mechanisms to make carbohydrates.
D)  More sunlight would be absorbed and converted to environmental heat.
E)  All answers are correct.

Question 20

Place the steps of the light reactions in the order in which they occur.

Accepted Answer

Photosystem II captures a photon of ligh...

Exam 5: Photosynthesis

Herbicides may kill plants by

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Tiny openings in the epidermis of the leaf that allow air to enter into the leaf are called

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The sea slug Elysia chlorotica absorbs chloroplasts as it digests algae,allowing the sea slug to live on sunlight and carbon dioxide.This suggests that for both light and carbon reactions

Correct AnswerverifiedShow Answer

If oxygen could be traced,the oxygen in the water in a leaf would end up in carbohydrates after photosynthesis.

Correct AnswerverifiedShow Answer

The light reactions produce ATP,while the carbon reactions consume it.

Correct AnswerverifiedShow Answer

The main product of the carbon reactions is

Correct AnswerverifiedShow Answer

Which does not usually increase in overall abundance as a result of photosynthesis?

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The reactions of photosynthesis are summarized as

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The reactants of photosynthesis are

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The main product of photosynthesis used by plants is

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If you were planning to extract chlorophyll from cells,what would be the best starting material?

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What is released at each step of an electron transport chain?

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How would Earth be different without photosynthesis?

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The Calvin cycle

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Place the steps of the light reactions in the order in which they occur.

Correct AnswerverifiedPhotosystem II captures a photon of ligh...View AnswerShow Answer

The main byproduct of photosynthesis that is essential to most life forms is

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If you were asked to sort cards into drawers,into a drawer marked "Packets of Light" would go any card referring to

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What part of the chloroplast has photosynthetic pigments in its membrane?

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

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Photosystem II captures a photon of ligh...
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