Question 1

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

Accepted Answer

A) True 
 B)False

Question 2

The light reactions harvest _____,while the carbon reactions produce ________.

Accepted Answer

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

Question 3

The ________,in the chloroplast,contains photosynthetic pigments in its membrane.

Accepted Answer

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

Question 4

The light reactions provide energy to fuel the carbon reactions to produce carbohydrates.

Accepted Answer

A) True 
 B)False

Question 5

In photosynthesis,the oxygen atoms in H₂O are

Accepted Answer

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

Question 6

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

Accepted Answer

A) True 
 B)False

Question 7

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

Question 8

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)  All of the answer choices are correct. 
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)  All of the answer choices are correct.

Question 9

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

Accepted Answer

A) True 
 B)False

Question 10

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

Accepted Answer

A)  animals. 
B)  animorphs. 
C)  heterotrophs. 
D)  autotrophs. 
E)  None of the answer choices are correct. 
A)  animals. 
B)  animorphs. 
C)  heterotrophs. 
D)  autotrophs. 
E)  None of the answer choices are correct.

Question 11

In photosynthesis,the carbon in CO₂ is ________ to form glucose.

Accepted Answer

A)  respired 
B)  oxidized 
C)  reduced 
D)  energized 
E)  broken down 
A)  respired 
B)  oxidized 
C)  reduced 
D)  energized 
E)  broken down

Question 12

Leaves of many plants change colors in the fall because

Accepted Answer

A)  the cooler weather causes plants to produce more of the photosynthetic accessory 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 photosynthetic accessory pigments. 
D)  the plants produce more chlorophyll. 
E)  All of the answer choices are correct. 
A)  the cooler weather causes plants to produce more of the photosynthetic accessory 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 photosynthetic accessory pigments. 
D)  the plants produce more chlorophyll. 
E)  All of the answer choices are correct.

Question 13

Water interacts with the machinery in photosystem II during the photosynthesis.

Accepted Answer

A) True 
 B)False

Question 14

Place the steps of the light reactions in the order in which they occur.
________ Excited electrons are passed through electron transport chain,producing NADPH.
________ Photosystem II captures a photon of light.
________ A pair of electrons is excited in the reaction center of photosystem II.
________ Energy is passed to the reaction center of photosystem II.
________ Excited electrons are passed through electron transport chain,producing ATP.

Accepted Answer

5 Excited electrons are passed th

Question 15

Tiny openings in the epidermis of the leaf that allow plants to exchange gases with the atmosphere are called

Accepted Answer

A)  thylakoids. 
B)  pigments. 
C)  stomata (singular: stoma). 
D)  grana (singular: granum). 
E)  thylakoid spaces. 
A)  thylakoids. 
B)  pigments. 
C)  stomata (singular: stoma). 
D)  grana (singular: granum). 
E)  thylakoid spaces.

Question 16

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

Accepted Answer

A)  leaves 
B)  bark 
C)  roots 
D)  stems 
E)  None of the answer choices are correct. 
A)  leaves 
B)  bark 
C)  roots 
D)  stems 
E)  None of the answer choices are correct.

Question 17

The primary pigment molecule needed for photosynthesis is

Accepted Answer

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

Question 18

Photosynthesis provides ________ in the atmosphere that support(s)much of the life on earth.

Accepted Answer

A)  organic compounds 
B)  carbon dioxide 
C)  chlorophyll 
D)  oxygen 
E)  sunlight 
A)  organic compounds 
B)  carbon dioxide 
C)  chlorophyll 
D)  oxygen 
E)  sunlight

Question 19

Burning wood is a reverse reaction of photosynthesis.Knowing this,what products would be formed?

Accepted Answer

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

Question 20

How do CAM plants minimize photorespiration?

Accepted Answer

A)  The light reactions and the carbon reactions occur in different cells, so carbon dioxide does not come into contact with rubisco. 
B)  The light reactions and the 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)  None of the answer choices are correct. 
A)  The light reactions and the carbon reactions occur in different cells, so carbon dioxide does not come into contact with rubisco. 
B)  The light reactions and the 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)  None of the answer choices are correct.

Exam 5: Photosynthesis

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

The light reactions harvest _____,while the carbon reactions produce ________.

The ________,in the chloroplast,contains photosynthetic pigments in its membrane.

The light reactions provide energy to fuel the carbon reactions to produce carbohydrates.

In photosynthesis,the oxygen atoms in H₂O are

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

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

Why are accessory pigments necessary in photosystems?

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

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

In photosynthesis,the carbon in CO₂ is ________ to form glucose.

Leaves of many plants change colors in the fall because

Water interacts with the machinery in photosystem II during the photosynthesis.

Tiny openings in the epidermis of the leaf that allow plants to exchange gases with the atmosphere are called

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

The primary pigment molecule needed for photosynthesis is

Photosynthesis provides ________ in the atmosphere that support(s)much of the life on earth.

Burning wood is a reverse reaction of photosynthesis.Knowing this,what products would be formed?

How do CAM plants minimize photorespiration?

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

Filters

The light reactions harvest _,while the carbon reactions produce ____.