Question 1

In the photosystem I photocenter,light energy captured by pigment molecules is passed on to a special molecule called

Accepted Answer

A)  P680.
B)  P700.
C)  chlorophyll I.
D)  chlorophyll II.
E)  retinal.F) B) and D)
G) D) and E)

Question 2

Embedded in the thylakoid membrane and protruding as knobs from the outer surface into the stroma,there are

Accepted Answer

A)  enzymes that fix carbon dioxide.
B)  proton channels that synthesize ATP.
C)  chlorophyll a and b.
D)  P680 and P700.
E)  specialized bundle sheath cells.F) A) and E)
G) C) and D)

Question 3

The loss of carbon fixing activity of the enzyme RuBP carboxylase is directly proportional to

Accepted Answer

A)  high temperatures and high light intensities.
B)  low temperature and low light intensities.
C)  completely dark conditions.
D)  lack of carbon dioxide.
E)  lack of oxygen.F) B) and D)
G) C) and D)

Question 4

Under what circumstances would increasing light intensity not result in an increase in the rate of photosynthesis?

Accepted Answer

A)  At any given time,the rate of photosynthesis is limited by the factor which is in the shortest supply.Therefore,if a factor other than light is limited,increasing the light intensity would not result in an increase in the rate of photosynthesis.
B)  At any given time,the rate of photosynthesis is limited by the factor which is in the greatest supply.Therefore,if a factor other than light is in surplus,increasing the light intensity would not result in an increase in the rate of photosynthesis.
C)  At any given time,the rate of photosynthesis is at its peak.Therefore,increasing the light intensity would not result in an increase in the rate of photosynthesis.D) A) and C)
E) All of the above

Question 5

Which of the following is common to both cellular respiration and the light reactions of photosynthesis?

Accepted Answer

A)  the transfer of electrons to glucose
B)  the chemiosmotic formation of ATP
C)  oxygen is one of the byproducts
D)  mitochondria are essential organelles
E)  must have lightF) B) and E)
G) B) and D)

Question 6

Most of the atmospheric oxygen occurs as a result of photosynthesis.From which of the following molecules is the oxygen derived?

Accepted Answer

A)  water
B)  carbon dioxide
C)  glucose
D)  chlorophyllE) A) and B)
F) C) and D)

Question 7

_______ adapted plants such as cacti,pineapples,etc.show a pattern of stomatal opening and closing that is the reverse of C3 plants.

Accepted Answer

A)  C3
B)  Arctic
C)  CAM
D)  Calvin cycleE) B) and D)
F) A) and D)

Question 8

Carotenoids are important to many plants because these pigments are able to

Accepted Answer

A)  remove carbon dioxide from the air.
B)  absorb wavelengths of light that neither chlorophyll a nor b can absorB.
C)  absorb water so that hydrolysis can be carried out in the chloroplasts.
D)  capture UV radiation that is harmful to the DNA in the nucleus of plant cells.
E)  store electrons for use during the "dark" reaction of photosynthesis.F) A) and B)
G) B) and E)

Question 9

Your research project involves a mutational analysis of the light harvesting complex Lhca1.Your labmate asks if you are working on a cytochrome found in the outer membrane of the chloroplast.You explain that:

Accepted Answer

A)  Yes,I am working on a cytochrome located in the outer chloroplast membrane.
B)  I am working on a cytochrome,but it is located in the thylakoid membrane,not the outer chloroplast membrane.
C)  I am working on a protein found in the antenna complex and it is located in the thylakoid membrane.
D)  Although it is located in the outer membrane of the chloroplast,I am working on a protein found in the antenna complex.E) C) and D)
F) B) and C)

Question 10

Engelmann (1883) discovered that the wavelengths of light that chlorophyll most strongly absorbed were

Accepted Answer

A)  in the red-violet wavelengths of the visible light spectrum.
B)  in the green wavelength of the visible light spectrum.
C)  in the yellow-orange wavelengths of the visible light spectrum.
D)  in the ultraviolet wavelengths of the light spectrum.
E)  in the infrared wavelengths of the light spectrum.F) A) and E)
G) B) and D)

Question 11

The connection between carrots and vision is that the  β\betaβ -carotene of carrots can produce two molecules of vitamin A and oxidation of vitamin A produces a pigment used in vertebrate vision.This pigment's name is

Accepted Answer

A)  chlorophyll.
B)  ferredoxin.
C)  cytochrome.
D)  carotene.
E)  retinal. F) D) and E)
G) C) and D)

Question 12

Photosystem II differs from photosystem I in that _____________ is not made directly from the process.

Accepted Answer

A)  ATP
B)  NADH
C)  NADPH
D)  carbohydrates
E)  waterF) A) and B)
G) C) and D)

Exam 8: Photosynthesis

Which of the following is common to both cellular respiration and the light reactions of photosynthesis?

Correct Answer
verified

Under what circumstances would increasing light intensity not result in an increase in the rate of photosynthesis?

Correct Answer
verified

In the photosystem I photocenter,light energy captured by pigment molecules is passed on to a special molecule called

Correct Answer
verified

Most of the atmospheric oxygen occurs as a result of photosynthesis.From which of the following molecules is the oxygen derived?

Correct Answer
verified

The connection between carrots and vision is that the $\beta$ -carotene of carrots can produce two molecules of vitamin A and oxidation of vitamin A produces a pigment used in vertebrate vision.This pigment's name is

Correct Answer
verified

Your research project involves a mutational analysis of the light harvesting complex Lhca1.Your labmate asks if you are working on a cytochrome found in the outer membrane of the chloroplast.You explain that:

Correct Answer
verified

_______ adapted plants such as cacti,pineapples,etc.show a pattern of stomatal opening and closing that is the reverse of C₃ plants.

Correct Answer
verified

Photosystem II differs from photosystem I in that _____________ is not made directly from the process.

Correct Answer
verified

Embedded in the thylakoid membrane and protruding as knobs from the outer surface into the stroma,there are

Correct Answer
verified

The loss of carbon fixing activity of the enzyme RuBP carboxylase is directly proportional to

Correct Answer
verified

Carotenoids are important to many plants because these pigments are able to

Correct Answer
verified

Engelmann (1883) discovered that the wavelengths of light that chlorophyll most strongly absorbed were

Correct Answer
verified

Exam 8: Photosynthesis

Which of the following is common to both cellular respiration and the light reactions of photosynthesis?

Correct AnswerverifiedShow Answer

Under what circumstances would increasing light intensity not result in an increase in the rate of photosynthesis?

Correct AnswerverifiedShow Answer

In the photosystem I photocenter,light energy captured by pigment molecules is passed on to a special molecule called

Correct AnswerverifiedShow Answer

Most of the atmospheric oxygen occurs as a result of photosynthesis.From which of the following molecules is the oxygen derived?

Correct AnswerverifiedShow Answer

The connection between carrots and vision is that the β\betaβ -carotene of carrots can produce two molecules of vitamin A and oxidation of vitamin A produces a pigment used in vertebrate vision.This pigment's name is

Correct AnswerverifiedShow Answer

Your research project involves a mutational analysis of the light harvesting complex Lhca1.Your labmate asks if you are working on a cytochrome found in the outer membrane of the chloroplast.You explain that:

Correct AnswerverifiedShow Answer

_______ adapted plants such as cacti,pineapples,etc.show a pattern of stomatal opening and closing that is the reverse of C3 plants.

Correct AnswerverifiedShow Answer

Photosystem II differs from photosystem I in that _____________ is not made directly from the process.

Correct AnswerverifiedShow Answer

Embedded in the thylakoid membrane and protruding as knobs from the outer surface into the stroma,there are

Correct AnswerverifiedShow Answer

The loss of carbon fixing activity of the enzyme RuBP carboxylase is directly proportional to

Correct AnswerverifiedShow Answer

Carotenoids are important to many plants because these pigments are able to

Correct AnswerverifiedShow Answer

Engelmann (1883) discovered that the wavelengths of light that chlorophyll most strongly absorbed were

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The connection between carrots and vision is that the $\beta$ -carotene of carrots can produce two molecules of vitamin A and oxidation of vitamin A produces a pigment used in vertebrate vision.This pigment's name is

Correct Answer
verified

Correct Answer
verified

_______ adapted plants such as cacti,pineapples,etc.show a pattern of stomatal opening and closing that is the reverse of C₃ plants.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified