Question 1

Photorespiration results in:

Accepted Answer

A)  no change in the sugar being produced during photosynthesis.
B)  more sugar being produced during photosynthesis.
C)  less sugar being produced during photosynthesis.
D)  sometimes more and sometimes less sugar being produced during photosynthesis.E) None of the above
F) C) and D)

Question 2

Photorespiration is when:

Accepted Answer

A)  plants use sugars by respiration.
B)  plants produce sugars during photosynthesis.
C)  the enzyme rubisco binds O₂ during the Calvin cycle.
D)  the enzyme rubisco binds CO₂ during the Calvin cycle.E) A) and D)
F) A) and C)

Question 3

Your friend Bill says that all food on Earth ultimately comes from photosynthesis.Your friend Tom disagrees,saying that,"Cows and pigs don't photosynthesize,and they are food." Who do you think is correct,and why?

Accepted Answer

Bill is correct.Without photos...

Question 4

Which of the following types of plants would most likely be found in the Mojave Desert?

Accepted Answer

A)  CAM
B)  C₃
C)  C₄
D)  CAM, C₃, and C₄ would all be equally likely in this environment.E) A) and B)
F) A) and C)

Question 5

What is the primary purpose of the light reactions of photosynthesis?

Accepted Answer

A)  to produce glucose
B)  to create oxygen gas
C)  to release electrons needed to convert solar energy to chemical energy
D)  to remove carbon dioxide gas from the atmosphereE) A) and C)
F) B) and D)

Question 6

During the light reactions of photosynthesis:

Accepted Answer

A)  H₂O is oxidized to oxygen and hydrogen ions.
B)  ATP is used to produce H₂O.
C)  ATP is used to produce NADPH.
D)  CO₂ is fixed into glucose.E) A) and C)
F) None of the above

Question 7

Photorespiration occurs most on:

Accepted Answer

A)  hot, dry days.
B)  hot, humid days.
C)  cool, cloudy days.
D)  cold, dry days.
E)  cloudy, rainy days.F) A) and B)
G) None of the above

Question 8

The sugar that first bonds with carbon dioxide in the Calvin cycle is:

Accepted Answer

A)  3-PGA.
B)  G3P.
C)  RuBP.
D)  rubisco.E) A) and D)
F) All of the above

Question 9

________ permit CO₂ to enter the leaf and O₂ to escape.

Accepted Answer

A)  Mesophyll cells
B)  Thylakoids
C)  Stomata
D)  ChloroplastsE) A) and B)
F) B) and C)

Question 10

Only plants can carry out photosynthesis.

Accepted Answer

A) True 
 B)False

Question 11

The electrons excited by sunlight in photosystem I are replaced by ________,and the electrons excited by sunlight in photosystem II are replaced by ________.

Accepted Answer

A)  electrons from water; electrons from photosystem I
B)  electrons from water; electrons from carbon dioxide
C)  electrons from water; electrons from water
D)  electrons from carbon dioxide; electrons from water
E)  electrons from photosystem II; electrons from waterF) None of the above
G) A) and D)

Question 12

If you see a red leaf,what color(s) of light in the visible light spectrum is/are being reflected?

Accepted Answer

A)  red
B)  all colors except red
C)  all colors
D)  no colorsE) B) and C)
F) A) and D)

Question 13

During photorespiration,rubisco binds with ________ ,and during photosynthesis,rubisco binds with ________.

Accepted Answer

A)  oxygen; a six-carbon sugar
B)  oxygen; a five-carbon sugar
C)  CO₂; oxygen
D)  a five-carbon sugar; oxygen
E)  oxygen; CO₂ and a five-carbon sugarF) B) and D)
G) A) and D)

Question 14

The two colors of light that drive most photosynthesis are ________ and ________.

Accepted Answer

The answer of The two colors of light that drive...

Question 15

What two colors of light drive most of photosynthesis?

Accepted Answer

A)  red and green
B)  blue and green
C)  red and blue
D)  green and yellow
E)  red and yellowF) All of the above
G) B) and D)

Question 16

The transfer of electrons from chlorophyll a molecules to the primary electron acceptor is an example of a/an:

Accepted Answer

A)  redox reaction.
B)  synthesis reaction.
C)  light reaction.
D)  absorption reaction.E) B) and C)
F) A) and B)

Question 17

Up until the 1930s it was assumed that the carbohydrates plants produced resulted from the combination of carbon atoms with water,and the oxygen released came from the splitting of the carbon dioxide molecule.You are a scientist testing this hypothesis.You have available to you water labeled with radioactive oxygen atoms and carbon dioxide labeled with radioactive oxygen atoms.Design an experiment to determine whether the oxygen produced during photosynthesis comes from the splitting of carbon dioxide or the splitting of water.

Accepted Answer

Take plant A and expose it to unlabeled ...

Question 18

The products of the light reactions that are then used by the Calvin cycle are:

Accepted Answer

A)  ATP and NADPH.
B)  ADP and NADP⁺.
C)  ATP and O₂.
D)  O₂ and NADPH.
E)  ATP and CO₂.F) A) and E)
G) D) and E)

Question 19

Which type of photosynthesis do most plants use?

Accepted Answer

A)  C₄
B)  C₃
C)  CAM
D)  photorespirationE) A) and D)
F) All of the above

Question 20

Which of the following is a CAM plant?

Accepted Answer

A)  lilac
B)  cactus
C)  sugarcane
D)  pine tree
E)  cornF) C) and E)
G) A) and C)

Exam 8: The Green Worlds Gift: Photosynthesis

Only plants can carry out photosynthesis.

Correct Answer
verified

If you see a red leaf,what color(s) of light in the visible light spectrum is/are being reflected?

Correct Answer
verified

Your friend Bill says that all food on Earth ultimately comes from photosynthesis.Your friend Tom disagrees,saying that,"Cows and pigs don't photosynthesize,and they are food." Who do you think is correct,and why?

Correct Answer
verified
Bill is correct.Without photos...
View Answer

What is the primary purpose of the light reactions of photosynthesis?

Correct Answer
verified

What two colors of light drive most of photosynthesis?

Correct Answer
verified

Photorespiration is when:

Correct Answer
verified

The sugar that first bonds with carbon dioxide in the Calvin cycle is:

Correct Answer
verified

The electrons excited by sunlight in photosystem I are replaced by ,and the electrons excited by sunlight in photosystem II are replaced by .

Correct Answer
verified

Which of the following is a CAM plant?

Correct Answer
verified

Which of the following types of plants would most likely be found in the Mojave Desert?

Correct Answer
verified

Photorespiration occurs most on:

Correct Answer
verified

The products of the light reactions that are then used by the Calvin cycle are:

Correct Answer
verified

Photorespiration results in:

Correct Answer
verified

The transfer of electrons from chlorophyll a molecules to the primary electron acceptor is an example of a/an:

Correct Answer
verified

The two colors of light that drive most photosynthesis are and .

Correct Answer
verified

During photorespiration,rubisco binds with ,and during photosynthesis,rubisco binds with .

Correct Answer
verified

During the light reactions of photosynthesis:

Correct Answer
verified

Which type of photosynthesis do most plants use?

Correct Answer
verified

Correct Answer
verified
Take plant A and expose it to unlabeled ...
View Answer

________ permit CO₂ to enter the leaf and O₂ to escape.

Correct Answer
verified

Exam 8: The Green Worlds Gift: Photosynthesis

Only plants can carry out photosynthesis.

Correct AnswerverifiedShow Answer

If you see a red leaf,what color(s) of light in the visible light spectrum is/are being reflected?

Correct AnswerverifiedShow Answer

Your friend Bill says that all food on Earth ultimately comes from photosynthesis.Your friend Tom disagrees,saying that,"Cows and pigs don't photosynthesize,and they are food." Who do you think is correct,and why?

Correct AnswerverifiedBill is correct.Without photos...View AnswerShow Answer

What is the primary purpose of the light reactions of photosynthesis?

Correct AnswerverifiedShow Answer

What two colors of light drive most of photosynthesis?

Correct AnswerverifiedShow Answer

Photorespiration is when:

Correct AnswerverifiedShow Answer

The sugar that first bonds with carbon dioxide in the Calvin cycle is:

Correct AnswerverifiedShow Answer

The electrons excited by sunlight in photosystem I are replaced by ________,and the electrons excited by sunlight in photosystem II are replaced by ________.

Correct AnswerverifiedShow Answer

Which of the following is a CAM plant?

Correct AnswerverifiedShow Answer

Which of the following types of plants would most likely be found in the Mojave Desert?

Correct AnswerverifiedShow Answer

Photorespiration occurs most on:

Correct AnswerverifiedShow Answer

The products of the light reactions that are then used by the Calvin cycle are:

Correct AnswerverifiedShow Answer

Photorespiration results in:

Correct AnswerverifiedShow Answer

The transfer of electrons from chlorophyll a molecules to the primary electron acceptor is an example of a/an:

Correct AnswerverifiedShow Answer

The two colors of light that drive most photosynthesis are ________ and ________.

Correct AnswerverifiedShow Answer

During photorespiration,rubisco binds with ________ ,and during photosynthesis,rubisco binds with ________.

Correct AnswerverifiedShow Answer

During the light reactions of photosynthesis:

Correct AnswerverifiedShow Answer

Which type of photosynthesis do most plants use?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedTake plant A and expose it to unlabeled ...View AnswerShow Answer

________ permit CO₂ to enter the leaf and O₂ to escape.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Bill is correct.Without photos...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The electrons excited by sunlight in photosystem I are replaced by ,and the electrons excited by sunlight in photosystem II are replaced by .

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The two colors of light that drive most photosynthesis are and .

Correct Answer
verified

During photorespiration,rubisco binds with ,and during photosynthesis,rubisco binds with .

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Take plant A and expose it to unlabeled ...
View Answer

Correct Answer
verified