Question 1

Biologists consider photosynthesis to be the most important metabolic process because without it,there would be no CO₂ in the atmosphere.

Accepted Answer

A) True 
 B)False  False

Question 2

Which of the following occurs as a result of splitting a water molecule in photosystem II?

Accepted Answer

A)  O₂ is produced that can be released by the cell. 
B)  O₂ is produced that can be used by the plant in respiration. 
C)  Protons are released to assist in the electron transport chain. 
D)  Electrons are released to assist in the electron transport chain. 
E)  All answer choices are correct. 
A)  O₂ is produced that can be released by the cell. 
B)  O₂ is produced that can be used by the plant in respiration. 
C)  Protons are released to assist in the electron transport chain. 
D)  Electrons are released to assist in the electron transport chain. 
E)  All answer choices are correct. E

Question 3

The carbon atoms in the cellulose of a wood log originally came from ________ absorbed by the plant.

Accepted Answer

A)  glucose 
B)  carbon dioxide 
C)  nutrients in the soil 
D)  water 
E)  oxygen 
A)  glucose 
B)  carbon dioxide 
C)  nutrients in the soil 
D)  water 
E)  oxygen B

Question 4

Which plants are best suited to cool,wet conditions?

Accepted Answer

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

Question 5

Photosystem I and photosystem II are part of

Accepted Answer

A)  the light reactions and the carbon reactions. 
B)  the light reactions only. 
C)  the light reactions and respiration. 
D)  the carbon reactions only. 
E)  respiration. 
A)  the light reactions and the carbon reactions. 
B)  the light reactions only. 
C)  the light reactions and respiration. 
D)  the carbon reactions only. 
E)  respiration.

Question 6

Match between columns
                        Premises: Calvin cycle
photosystem II
photosystem I
electron transport chain

Accepted Answer

The Answer of releases energy that is used to pump is...

Question 7

What is produced in the light reactions that is used in the carbon reactions of photosynthesis?

Accepted Answer

A)  ATP and NADPH 
B)  ADP and NADP⁺ 
C)  carbon dioxide and oxygen 
D)  water and glucose 
E)  oxygen and glucose 
A)  ATP and NADPH 
B)  ADP and NADP⁺ 
C)  carbon dioxide and oxygen 
D)  water and glucose 
E)  oxygen and glucose

Question 8

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

Accepted Answer

A)  nitrogen 
B)  glucose 
C)  sunlight 
D)  ATP 
E)  oxygen 
A)  nitrogen 
B)  glucose 
C)  sunlight 
D)  ATP 
E)  oxygen

Question 9

The carbon reactions can run on their own without the products of the light reactions.

Accepted Answer

A) True 
 B)False

Question 10

The carbon reactions produce ATP and NADPH.

Accepted Answer

A) True 
 B)False

Question 11

Sunlight is the energy source for the light reactions.The energy sources for the carbon reactions are

Accepted Answer

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

Question 12

The main product of the carbon reactions is

Accepted Answer

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

Question 13

How would Earth be different without photosynthesis?

Accepted Answer

A)  The amount of oxygen in the atmosphere would be lower. 
B)  Heterotrophs would have fewer food sources. 
C)  There would be destruction to the food web. 
D)  More sunlight would be absorbed and converted to environmental heat. 
E)  All answers are correct. 
A)  The amount of oxygen in the atmosphere would be lower. 
B)  Heterotrophs would have fewer food sources. 
C)  There would be destruction to the food web. 
D)  More sunlight would be absorbed and converted to environmental heat. 
E)  All answers are correct.

Question 14

Without photosynthesis,autotrophs would be more abundant.

Accepted Answer

A) True 
 B)False

Question 15

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

Question 16

The main product of photosynthesis used by plants for food is

Accepted Answer

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

Question 17

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

Accepted Answer

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

Question 18

How do C₄ plants minimize photorespiration?

Accepted Answer

A)  Stomata are open only at night and oxygen is stored in a four-carbon compound. 
B)  The light reactions and the carbon reactions occur in different cells, so CO₂ does not come into contact with rubisco. 
C)  Stomata are open only at night and CO₂ is stored in a four-carbon compound. 
D)  The light reactions and the carbon reactions occur in different cells, so that high levels of CO₂ are always around rubisco. 
E)  None of the answer choices are correct. 
A)  Stomata are open only at night and oxygen is stored in a four-carbon compound. 
B)  The light reactions and the carbon reactions occur in different cells, so CO₂ does not come into contact with rubisco. 
C)  Stomata are open only at night and CO₂ is stored in a four-carbon compound. 
D)  The light reactions and the carbon reactions occur in different cells, so that high levels of CO₂ are always around rubisco. 
E)  None of the answer choices are correct.

Question 19

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

Accepted Answer

A) True 
 B)False

Question 20

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. 
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.

Exam 5: Photosynthesis

Biologists consider photosynthesis to be the most important metabolic process because without it,there would be no CO₂ in the atmosphere.

Which of the following occurs as a result of splitting a water molecule in photosystem II?

The carbon atoms in the cellulose of a wood log originally came from ________ absorbed by the plant.

Which plants are best suited to cool,wet conditions?

Photosystem I and photosystem II are part of

What is produced in the light reactions that is used in the carbon reactions of photosynthesis?

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

The carbon reactions can run on their own without the products of the light reactions.

The carbon reactions produce ATP and NADPH.

Sunlight is the energy source for the light reactions.The energy sources for the carbon reactions are

The main product of the carbon reactions is

How would Earth be different without photosynthesis?

Without photosynthesis,autotrophs would be more abundant.

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

The main product of photosynthesis used by plants for food is

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

How do C₄ plants minimize photorespiration?

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

Photosynthesis

The Scientific Study of Life

The Chemistry of Life

Cells

The Energy of Life

Respiration and Fermentation

DNA Structure and Gene Function

DNA Replication,Binary Fission,and Mitosis

Sexual Reproduction and Meiosis

Patterns of Inheritance

DNA Technology

Forces of Evolutionary Change

Evidence of Evolution

Speciation and Extinction

Evolution and Diversity of Microbial Life

Evolution and Diversity of Plants

Evolution and Diversity of Animals

Populations

Communities and Ecosystems

Preserving Biodiversity

Plant Form and Function

Reproduction and Development of Flowering Plants

Animal Tissues and Organ Systems

The Nervous System and the Senses

The Endocrine System

The Skeletal and Muscular Systems

The Circulatory and Respiratory Systems

The Digestive and Urinary Systems

The Immune System

Animal Reproduction and Development

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