Question 1

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.F) B) and D)
G) C) and D)

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) B) and D)
G) A) and C)

Question 3

The primary pigment molecule needed for photosynthesis is

Accepted Answer

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

Question 4

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.F) A) and E)
G) A) and D)

Question 5

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

Accepted Answer

A)   respired
B)   oxidized
C)   reduced
D)   energized
E)   broken downF) None of the above
G) C) and E)

Question 6

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

Accepted Answer

A) True 
 B)False

Question 7

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.F) B) and D)
G) A) and B)

Question 8

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.F) C) and D)
G) A) and D)

Question 9

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.F) B) and C)
G) A) and E)

Question 10

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)   sunlightF) B) and C)
G) D) and E)

Question 11

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

Accepted Answer

A) True 
 B)False

Question 12

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

Accepted Answer

A) True 
 B)False

Question 13

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

Accepted Answer

A) True 
 B)False

Question 14

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) B) and C)
G) A) and E)

Question 15

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.F) B) and E)
G) A) and B)

Question 16

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

Accepted Answer

A)   granum
B)   mesophyll
C)   chlorophyll
D)   thylakoid
E)   stromaF) A) and B)
G) A) and C)

Question 17

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

Accepted Answer

A) True 
 B)False

Question 18

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 19

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 acidsF) A) and D)
G) C) and E)

Question 20

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 glucoseF) C) and D)
G) A) and B)

Exam 5: Photosynthesis

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

Correct Answer
verified

The primary pigment molecule needed for photosynthesis is

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

Leaves of many plants change colors in the fall because

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

In photosynthesis,the oxygen atoms in H₂O are

Correct Answer
verified

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

Correct Answer
verified

Correct Answer
verified
5 Excited electrons are passed th...
View Answer

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

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

How do CAM plants minimize photorespiration?

Correct Answer
verified

Why are accessory pigments necessary in photosystems?

Correct Answer
verified

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

Correct Answer
verified

Exam 5: Photosynthesis

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

Correct AnswerverifiedShow Answer

The primary pigment molecule needed for photosynthesis is

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Leaves of many plants change colors in the fall because

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

In photosynthesis,the oxygen atoms in H₂O are

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Correct Answerverified5 Excited electrons are passed th...View AnswerShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

How do CAM plants minimize photorespiration?

Correct AnswerverifiedShow Answer

Why are accessory pigments necessary in photosystems?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
5 Excited electrons are passed th...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

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

Correct Answer
verified