Question 1

Electron transfer in PbRC is approximately ____ efficient.

Accepted Answer

A) 25%. 
B) 50%. 
C) 75%. 
D) 96%. 
E) 100%. 
A) 25%. 
B) 50%. 
C) 75%. 
D) 96%. 
E) 100%.

Question 2

In the dark reactions of photosynthesis,glyceraldehyde-3-phosphate is converted to dihydroxyacetone phosphate by___.

Accepted Answer

A) phosphoglucoisomerase 
B) triose phosphate isomerase 
C) glyceraldehyde-3-phosphate dehydrogenase 
D) phosphotriose epimerase 
E) phosphoglycerate kinase 
A) phosphoglucoisomerase 
B) triose phosphate isomerase 
C) glyceraldehyde-3-phosphate dehydrogenase 
D) phosphotriose epimerase 
E) phosphoglycerate kinase

Question 3

Matching
Choose the correct answer from the list below.Not all the answers will be used.

-Electron transport through the cytochrome b6f complex generates a _____ gradient.

Accepted Answer

A)  photosynthetic reaction center 
B)  tyrosyl radical 
C)  thylakoid 
D)  H2O 
E)  CF1CF0
F) Z-scheme
G)  NADPH
H) plastoquinone 
I) H+
J) RuBP carboxylase
K) CO2
L)  2 OH–
M) O2 
A)  photosynthetic reaction center 
B)  tyrosyl radical 
C)  thylakoid 
D)  H2O 
E)  CF1CF0
F) Z-scheme
G)  NADPH
H) plastoquinone 
I) H+
J) RuBP carboxylase
K) CO2
L)  2 OH–
M) O2

Question 4

The oxygen evolving center
(I)is a part of PSI known as the water splitting enzyme.
(II)breaks two H2O molecules into four protons,four electrons and O2.
(III)requires four light-dependent reactions to generate O2.
(IV)frees an electron from oxygen for replacement of the photooxidized electron in P680.

Accepted Answer

A) I,II,III,IV 
B) I,II 
C) II,III,IV 
D) II,III 
E) I,IV 
A) I,II,III,IV 
B) I,II 
C) II,III,IV 
D) II,III 
E) I,IV

Question 5

Matching
Choose the correct answer from the list below.Not all the answers will be used.

-The electrons abstracted by the oxygen evolving center (OEC)are relayed to a ______.

Accepted Answer

A)  photosynthetic reaction center 
B)  tyrosyl radical 
C)  thylakoid 
D)  H2O 
E)  CF1CF0
F) Z-scheme
G)  NADPH
H) plastoquinone 
I) H+
J) RuBP carboxylase
K) CO2
L)  2 OH–
M) O2 
A)  photosynthetic reaction center 
B)  tyrosyl radical 
C)  thylakoid 
D)  H2O 
E)  CF1CF0
F) Z-scheme
G)  NADPH
H) plastoquinone 
I) H+
J) RuBP carboxylase
K) CO2
L)  2 OH–
M) O2

Question 6

The redox centers PSII,PbRC,PbRC from Rps.viridis,and cytochrome b6f

Accepted Answer

A) have identical prosthetic groups that differ only in sequence of arrangement and spatial orientation. 
B) have some degree of symmetry either based on their prosthetic groups or based on tertiary protein structure. 
C) all become reduced due to activity of the OEC. 
D) all of the above 
E) none of the above 
A) have identical prosthetic groups that differ only in sequence of arrangement and spatial orientation. 
B) have some degree of symmetry either based on their prosthetic groups or based on tertiary protein structure. 
C) all become reduced due to activity of the OEC. 
D) all of the above 
E) none of the above

Question 7

In photorespiration,reduction of hydroxypyruvate to glycerate requires ____ and occurs in the ____.

Accepted Answer

A) NADPH;mitochondrion 
B) NADH;peroxisome 
C) NADPH;chloroplast 
D) NADH;chloroplast 
E) none of the above 
A) NADPH;mitochondrion 
B) NADH;peroxisome 
C) NADPH;chloroplast 
D) NADH;chloroplast 
E) none of the above

Question 8

Electrons from FB in PSI that follow the cyclic pathways are returned from ____ via ____ to the plastoquinone pool.

Accepted Answer

A) plastocyanin;plastoquinone 
B) PSI;cytochrome b6 
C) PSI;plastoquinone 
D) plastocyanin;cytochrome b6 
E) cytochrome b6;plastoquinone 
A) plastocyanin;plastoquinone 
B) PSI;cytochrome b6 
C) PSI;plastoquinone 
D) plastocyanin;cytochrome b6 
E) cytochrome b6;plastoquinone

Question 9

Matching
Choose the correct answer from the list below.Not all the answers will be used.

-______ carries electrons between PSII and PSI.

Accepted Answer

A)  photosynthetic reaction center 
B)  tyrosyl radical 
C)  thylakoid 
D)  H2O 
E)  CF1CF0
F) Z-scheme
G)  NADPH
H) plastoquinone 
I) H+
J) RuBP carboxylase
K) CO2
L)  2 OH–
M) O2 
A)  photosynthetic reaction center 
B)  tyrosyl radical 
C)  thylakoid 
D)  H2O 
E)  CF1CF0
F) Z-scheme
G)  NADPH
H) plastoquinone 
I) H+
J) RuBP carboxylase
K) CO2
L)  2 OH–
M) O2

Question 10

The major difference between pheophytins and chlorophylls is

Accepted Answer

A) pheophytins contain iron in their centers while chlorophylls contain magnesium. 
B) chlorophylls contain iron in their centers while pheophytins contain magnesium. 
C) pheophytins contain no metal ion in their centers. 
D) pheophytins are linear,rather than cyclic tetrapyrroles. 
E) none of the above 
A) pheophytins contain iron in their centers while chlorophylls contain magnesium. 
B) chlorophylls contain iron in their centers while pheophytins contain magnesium. 
C) pheophytins contain no metal ion in their centers. 
D) pheophytins are linear,rather than cyclic tetrapyrroles. 
E) none of the above

Electron transfer in PbRC is approximately ____ efficient.

In the dark reactions of photosynthesis,glyceraldehyde-3-phosphate is converted to dihydroxyacetone phosphate by___.

Matching Choose the correct answer from the list below.Not all the answers will be used. -Electron transport through the cytochrome b₆f complex generates a _____ gradient.

Matching Choose the correct answer from the list below.Not all the answers will be used. -The electrons abstracted by the oxygen evolving center (OEC)are relayed to a ______.

The redox centers PSII,PbRC,PbRC from Rps.viridis,and cytochrome b₆f

In photorespiration,reduction of hydroxypyruvate to glycerate requires and occurs in the .

Electrons from FB in PSI that follow the cyclic pathways are returned from via to the plastoquinone pool.

Matching Choose the correct answer from the list below.Not all the answers will be used. -______ carries electrons between PSII and PSI.

The major difference between pheophytins and chlorophylls is

Introduction to the Chemistry of Life

Water

Nucleotides, nucleic Acids, and Genetic Information

Amino Acids

Proteins: Primary Structure

Proteins: Three-Dimensional Structure

Protein Function Part I: Myoglobin and Hemoglobin

Carbohydrates

Lipids and Biological Membranes

Membrane Transport

Enzyme Catalysis

Enzyme Kinetics, inhibition and Control

Biochemical Signaling

Introduction to Metabolism

Glucose Catabolism

Glycogen Metabolism and Gluconeogenesis

Citric Acid Cycle

Electron Transport and Oxidative Phosphorylation

Lipid Metabolism

Amino Acid Metabolism

Mammalian Fuel Metabolism: Integration and Regulation

Nucleotide Metabolism

Nucleic Acid Structure

DNA Replication, repair and Recombination

Transcription and Rna Processing

Protein Synthesis

Regulation of Gene Expression

Filters

Exam 19: Photosynthesis

Electron transfer in PbRC is approximately ____ efficient.

In the dark reactions of photosynthesis,glyceraldehyde-3-phosphate is converted to dihydroxyacetone phosphate by___.

Matching Choose the correct answer from the list below.Not all the answers will be used. -Electron transport through the cytochrome b6f complex generates a _____ gradient.

Matching Choose the correct answer from the list below.Not all the answers will be used. -The electrons abstracted by the oxygen evolving center (OEC)are relayed to a ______.

The redox centers PSII,PbRC,PbRC from Rps.viridis,and cytochrome b6f

In photorespiration,reduction of hydroxypyruvate to glycerate requires ____ and occurs in the ____.

Electrons from FB in PSI that follow the cyclic pathways are returned from ____ via ____ to the plastoquinone pool.

Matching Choose the correct answer from the list below.Not all the answers will be used. -______ carries electrons between PSII and PSI.

The major difference between pheophytins and chlorophylls is

Introduction to the Chemistry of Life

Water

Nucleotides, nucleic Acids, and Genetic Information

Amino Acids

Proteins: Primary Structure

Proteins: Three-Dimensional Structure

Protein Function Part I: Myoglobin and Hemoglobin

Carbohydrates

Lipids and Biological Membranes

Membrane Transport

Enzyme Catalysis

Enzyme Kinetics, inhibition and Control

Biochemical Signaling

Introduction to Metabolism

Glucose Catabolism

Glycogen Metabolism and Gluconeogenesis

Citric Acid Cycle

Electron Transport and Oxidative Phosphorylation

Lipid Metabolism

Amino Acid Metabolism

Mammalian Fuel Metabolism: Integration and Regulation

Nucleotide Metabolism

Nucleic Acid Structure

DNA Replication, repair and Recombination

Transcription and Rna Processing

Protein Synthesis

Regulation of Gene Expression

Filters

Matching Choose the correct answer from the list below.Not all the answers will be used. -Electron transport through the cytochrome b₆f complex generates a _____ gradient.

The redox centers PSII,PbRC,PbRC from Rps.viridis,and cytochrome b₆f

In photorespiration,reduction of hydroxypyruvate to glycerate requires and occurs in the .

Electrons from FB in PSI that follow the cyclic pathways are returned from via to the plastoquinone pool.