Question 1

The manganese center of photosystem II converts ________________ to ________________.

Accepted Answer

H2O; O2

Question 2

What is the original source of electrons used to neutralize the special pair in photosystem II?

Accepted Answer

A)  reduced cytochrome bf 
B)  NADH 
C)  H2O 
D)  membrane lipids 
E)  ferredoxin 
A)  reduced cytochrome bf 
B)  NADH 
C)  H2O 
D)  membrane lipids 
E)  ferredoxin C

Question 3

Stacked and unstacked regions of the thylakoid are arranged such that:

Accepted Answer

A)  photosystem I is located in the unstacked regions. 
B)  photosystem II is located in the stacked region. 
C)  ATP synthase occurs mainly in unstacked retions. 
D)  A and C. 
E)  A, B, and C. 
A)  photosystem I is located in the unstacked regions. 
B)  photosystem II is located in the stacked region. 
C)  ATP synthase occurs mainly in unstacked retions. 
D)  A and C. 
E)  A, B, and C. E

Question 4

________________ is the receptor of excited electrons from P680.

Accepted Answer

The answer of ________________ is the receptor of excited electrons...

Question 5

Photosystem II responds to wavelengths shorter than ____________.

Accepted Answer

A) 960 nm 
B) magnesium 
C) ATP synthase 
D) chloroplasts 
E) thylakoids
F)copper
G)β-carotene
H)680 nm
I)FAD
J)chlorophyll a
K)ferredoxin b
L)resonance energy transfer 
A) 960 nm 
B) magnesium 
C) ATP synthase 
D) chloroplasts 
E) thylakoids
F)copper
G)β-carotene
H)680 nm
I)FAD
J)chlorophyll a
K)ferredoxin b
L)resonance energy transfer

Question 6

The principal photoreceptor in chloroplasts of green plants is ____________.

Accepted Answer

A) 960 nm 
B) magnesium 
C) ATP synthase 
D) chloroplasts 
E) thylakoids
F)copper
G)β-carotene
H)680 nm
I)FAD
J)chlorophyll a
K)ferredoxin b
L)resonance energy transfer 
A) 960 nm 
B) magnesium 
C) ATP synthase 
D) chloroplasts 
E) thylakoids
F)copper
G)β-carotene
H)680 nm
I)FAD
J)chlorophyll a
K)ferredoxin b
L)resonance energy transfer

Question 7

Humans do not produce energy by photosynthesis. Why, then, is this process critical to our survival?

Accepted Answer

The products of phot

Question 8

How is it possible to make ATP without generating NADPH?

Accepted Answer

In cyclic photophosphorylation, the elec

Question 9

The process in which a positive charge forms on one molecule by the loss of a photoexcited electron, and a negative charge forms on another by the gain of an electron is referred to as ________________.

Accepted Answer

photoinduc

Question 10

Which of the following is/are light harvesting molecules?

Accepted Answer

A)  vitamin D 
B)  carotenoids 
C)  chlorophyll b 
D)  plastocyanin 
E)  B and C 
A)  vitamin D 
B)  carotenoids 
C)  chlorophyll b 
D)  plastocyanin 
E)  B and C

Question 11

The inner membrane of a chloroplast surrounds a space called the ________________.

Accepted Answer

The answer of The inner membrane of a chloroplast surrounds...

Question 12

The prosthetic group of ferredoxin-NADP+ reductase is ____________.

Accepted Answer

A) 960 nm 
B) magnesium 
C) ATP synthase 
D) chloroplasts 
E) thylakoids
F)copper
G)β-carotene
H)680 nm
I)FAD
J)chlorophyll a
K)ferredoxin b
L)resonance energy transfer 
A) 960 nm 
B) magnesium 
C) ATP synthase 
D) chloroplasts 
E) thylakoids
F)copper
G)β-carotene
H)680 nm
I)FAD
J)chlorophyll a
K)ferredoxin b
L)resonance energy transfer

Question 13

What is the role of accessory pigments in photosynthesis?

Accepted Answer

Chlorophyll a only absorbs visible light

Question 14

Describe the process of cyclic photophosphorylation.

Accepted Answer

In this pathway, electrons from reduced

Question 15

How is light used in photosynthesis?

Accepted Answer

A)  The light is necessary to make the chlorophyll green, so the pigment can transmit electrons. 
B)  The light is used to generate high-energy electrons with great reducing potential. 
C)  The light provides heat energy for the chloroplasts. 
D)  The light is absorbed by oxygen, which is converted into water. 
E)  None of the above. 
A)  The light is necessary to make the chlorophyll green, so the pigment can transmit electrons. 
B)  The light is used to generate high-energy electrons with great reducing potential. 
C)  The light provides heat energy for the chloroplasts. 
D)  The light is absorbed by oxygen, which is converted into water. 
E)  None of the above.

Question 16

What are the likely reasons that manganese evolved as the ion used in photosystem II?

Accepted Answer

Manganese can exist in multipl

Question 17

In the light reactions of photosynthesis, the cooperation between photosystem I and photosystem II creates a flow of electrons from H2O to ________________.

Accepted Answer

The answer of In the light reactions of photosynthesis, the...

Question 18

____________: Membranous structures in a chloroplast that are stacked, flattened disks.

Accepted Answer

A) 960 nm 
B) magnesium 
C) ATP synthase 
D) chloroplasts 
E) thylakoids
F)copper
G)β-carotene
H)680 nm
I)FAD
J)chlorophyll a
K)ferredoxin b
L)resonance energy transfer 
A) 960 nm 
B) magnesium 
C) ATP synthase 
D) chloroplasts 
E) thylakoids
F)copper
G)β-carotene
H)680 nm
I)FAD
J)chlorophyll a
K)ferredoxin b
L)resonance energy transfer

Question 19

Electrons flow from photosystem I to photosystem II through the ________________ complex.

Accepted Answer

The answer of Electrons flow from photosystem I to photosystem...

Question 20

P700 is the pigment reaction center for ________________.

Accepted Answer

The answer of P700 is the pigment reaction center for...

Exam 22: The Light Reactions

The manganese center of photosystem II converts ________________ to ________________.

What is the original source of electrons used to neutralize the special pair in photosystem II?

Stacked and unstacked regions of the thylakoid are arranged such that:

________________ is the receptor of excited electrons from P680.

Photosystem II responds to wavelengths shorter than ____________.

The principal photoreceptor in chloroplasts of green plants is ____________.

Humans do not produce energy by photosynthesis. Why, then, is this process critical to our survival?

How is it possible to make ATP without generating NADPH?

The process in which a positive charge forms on one molecule by the loss of a photoexcited electron, and a negative charge forms on another by the gain of an electron is referred to as ________________.

Which of the following is/are light harvesting molecules?

The inner membrane of a chloroplast surrounds a space called the ________________.

The prosthetic group of ferredoxin-NADP+ reductase is ____________.

What is the role of accessory pigments in photosynthesis?

Describe the process of cyclic photophosphorylation.

How is light used in photosynthesis?

What are the likely reasons that manganese evolved as the ion used in photosystem II?

In the light reactions of photosynthesis, the cooperation between photosystem I and photosystem II creates a flow of electrons from H2O to ________________.

____________: Membranous structures in a chloroplast that are stacked, flattened disks.

Electrons flow from photosystem I to photosystem II through the ________________ complex.

P700 is the pigment reaction center for ________________.

Biochemistry and the Unity of Life

Water, Weak Bonds, and the Generation of Order Out of Chaos

Amino Acids

Protein Three-Dimensional Structure

Techniques in Protein Biochemistry

Basic Concepts of Enzyme Action

Kinetics and Regulation

Mechanisms and Inhibitors

Hemoglobin: an Allosteric Protein

Carbohydrates

Lipids

Membrane Structure and Function

Signal Transduction Pathways

Digestion: Turning a Meal Into Cellular Biochemicals

Metabolism: Basic Concepts and Design

Glycolysis

Gluconeogenesis

Preparation for the Cycle

Harvesting Electrons From the Cycle

The Electron Transport Chain

The Proton-Motive Force

The Calvin Cycle

Glycogen Degradation

Glycogen Synthesis

The Pentose Phosphate Pathway

Fatty Acid Degredation

Fatty Acid Synthesis

Lipid Synthesis

Amino Acid Degradation and the Urea Cycle

Amino Acids Synthesis

Nucleotide Metabolism

The Structure of Informational Macromolecules: Dna and Rna

DNA Replication

DNA Repair and Recombination

RNA Synthesis and Regulation in Prokaryotes

Gene Expression in Eukaryotes

RNA Processing in Eukaryotes

The Genetic Code

The Mechanism of Protein Synthesis

Recombinant Dna Techniques

Filters

The manganese center of photosystem II converts to .