Question 1

Green and yellow wavelengths of light are used to power photosynthesis.

Accepted Answer

A) True 
 B)False

Question 2

Leaves of many plants change colors in the fall because

Accepted Answer

A)  the cooler weather causes plants to produce more of the accessory photosynthetic pigments.
B)  chlorophyll in the leaves degrades with shorter days and cooler temperatures.
C)  the decrease in daylight hours causes the plant to produce more of the accessory photosynthetic pigments.
D)  plants produce more chlorophyll.
E)  All answers are correct.

Question 3

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.

Question 4

Photosynthesis

Accepted Answer

A)  is not dependent on chlorophyll.
B)  does not involve oxidation-reduction reactions.
C)  produces water and carbon dioxide.
D)  produces glucose and oxygen.
E)  No answer is correct.

Question 5

If you were placing orders for experiments with rubsico,for the first part of your work you would need to get what besides ribulose bisphosphate?

Accepted Answer

A)  glucose
B)  ATP
C)  carbon monoxide
D)  organic compounds
E)  carbon dioxide

Question 6

Without photosynthesis,autotrophs would be more abundant.

Accepted Answer

A) True 
 B)False

Question 7

In what organelle does photosynthesis take place in algae and plants?

Accepted Answer

A)  chloroplast
B)  mitochondrion
C)  ribosome
D)  nucleus
E)  lysosome

Question 8

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

Accepted Answer

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

Question 9

The light reactions harvest _______,while the carbon reactions produce _______.

Accepted Answer

A)  energy,carbohydrates
B)  energy,phosphate
C)  phosphate,carbohydrate
D)  energy,nucleic acids
E)  lipids,nucleic acids

Question 10

Electrons from water are used to replenish those removed frm chlorophyll during the light reactions.

Accepted Answer

A) True 
 B)False

Question 11

In photosynthesis,the oxygen atoms in H2O are

Accepted Answer

A)  energized.
B)  reduced.
C)  reformed into other elements.
D)  oxidizeD.
E)  broken down.

Question 12

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

Accepted Answer

A)  NADPH
B)  water
C)  oxygen
D)  ADP
E)  glucose

Question 13

Match the steps of photosynthesis with the correct descriptions.

Accepted Answer

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

Question 14

If you were looking to change your work on stomata to suit your awake-at-night personality,with which plants would you choose to work?

Accepted Answer

A)  CAM
B)  C3
C)  C4
D)  CAM or C3
E)  C3 or C4

Question 15

Plants need water to fill their cells and to perform the light reactions.

Accepted Answer

A) True 
 B)False

Question 16

Which plants are best suited to cool,wet conditions?

Accepted Answer

A)  C4
B)  C3
C)  CAM
D)  All types are equally suiteD.

Question 17

The energy source for the light reactions is _____;the energy source for the carbon reactions is ______.

Accepted Answer

A)  ATP,carbon dioxide
B)  sunlight,carbon dioxide
C)  sunlight,ATP
D)  ATP,oxygen
E)  Sunlight serves as the energy source for both sets of photosynthetic reactions.

Question 18

The sea slug Elysia chlorotica benefits from both light and carbon reactions because it contains

Accepted Answer

A)  enzymes that produce green light.
B)  heme.
C)  algal chromosomes.
D)  pigments that reflect red and blue light.
E)  chlorophyll.

Question 19

Without photosynthesis,iron objects would rust slowly or not at all.

Accepted Answer

A) True 
 B)False

Question 20

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

Accepted Answer

A) True 
 B)False

Exam 5: Photosynthesis

In photosynthesis,the oxygen atoms in H2O are

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The light reactions harvest _______,while the carbon reactions produce _______.

Correct AnswerverifiedShow Answer

Which plants are best suited to cool,wet conditions?

Correct AnswerverifiedShow Answer

If you were placing orders for experiments with rubsico,for the first part of your work you would need to get what besides ribulose bisphosphate?

Correct AnswerverifiedShow Answer

Photosynthesis

Correct AnswerverifiedShow Answer

In what organelle does photosynthesis take place in algae and plants?

Correct AnswerverifiedShow Answer

Green and yellow wavelengths of light are used to power photosynthesis.

Correct AnswerverifiedShow Answer

Why are accessory pigments necessary in photosystems?

Correct AnswerverifiedShow Answer

Electrons from water are used to replenish those removed frm chlorophyll during the light reactions.

Correct AnswerverifiedShow Answer

If you were looking to change your work on stomata to suit your awake-at-night personality,with which plants would you choose to work?

Correct AnswerverifiedShow Answer

The energy source for the light reactions is _____;the energy source for the carbon reactions is ______.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Without photosynthesis,iron objects would rust slowly or not at all.

Correct AnswerverifiedShow Answer

Without photosynthesis,autotrophs would be more abundant.

Correct AnswerverifiedShow Answer

The sea slug Elysia chlorotica benefits from both light and carbon reactions because it contains

Correct AnswerverifiedShow Answer

Leaves of many plants change colors in the fall because

Correct AnswerverifiedShow Answer

Plants need water to fill their cells and to perform the light reactions.

Correct AnswerverifiedShow Answer

Match the steps of photosynthesis with the correct descriptions.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

In photosynthesis,the oxygen atoms in H₂O are

Correct Answer
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The light reactions harvest _,while the carbon reactions produce _.

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The energy source for the light reactions is _;the energy source for the carbon reactions is __.

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