Question 1

For every 12 molecules of 3-phosphoglycerate produced by rubisco,_____ are converted to hexoses while _____ are recycled to ribulose-1,5-bisphosphate.

Accepted Answer

A) 2;10 
B) 4;8 
C) 6;6 
D) 8;4 
E) 10;2 
A) 2;10 
B) 4;8 
C) 6;6 
D) 8;4 
E) 10;2

Question 2

Which of the following shows the overall equation for the light reactions?

Accepted Answer

A) 2 H2O + 1 NADP+ $\to$ 1 H+ + O2 + 1 NADPH,requires 4 photons 
B) 2 H2O + 1 NADP+ $\to$ 1 H+ + O2 + 1 NADPH,requires 8 photons 
C) 2 H2O + 2 NADP+ $\to$ 2 H+ + O2 + 2 NADPH,requires 4 photons 
D) 2 H2O + 2 NADP+ $\to$ 2 H+ + O2 + 2 NADPH,requires 8 photons 
E) 2 H2O + 2 NADP+ $\to$ 2 H+ + O2 + 2 NADPH,requires 16 photons 
A) 2 H2O + 1 NADP+ $\to$ 1 H+ + O2 + 1 NADPH,requires 4 photons 
B) 2 H2O + 1 NADP+ $\to$ 1 H+ + O2 + 1 NADPH,requires 8 photons 
C) 2 H2O + 2 NADP+ $\to$ 2 H+ + O2 + 2 NADPH,requires 4 photons 
D) 2 H2O + 2 NADP+ $\to$ 2 H+ + O2 + 2 NADPH,requires 8 photons 
E) 2 H2O + 2 NADP+ $\to$ 2 H+ + O2 + 2 NADPH,requires 16 photons

Question 3

Under what conditions does the cyclic electron flow of photosystem I occur?

Accepted Answer

A) high NADPH,low ATP 
B) low NADPH,high ATP 
C) low NADPH,low ATP 
D) high NADPH,high ATP 
E) under conditions when light is not intense enough to excite PSII 
A) high NADPH,low ATP 
B) low NADPH,high ATP 
C) low NADPH,low ATP 
D) high NADPH,high ATP 
E) under conditions when light is not intense enough to excite PSII

Question 4

For each molecule of CO2 fixed by the Calvin cycle,how many ATP and NADPH are required?

Accepted Answer

A) 3 ATP,1 NADPH 
B) 3 ATP,2 NADPH 
C) 6 ATP,2 NADPH 
D) 6 ATP,3 NADPH 
E) none of the above 
A) 3 ATP,1 NADPH 
B) 3 ATP,2 NADPH 
C) 6 ATP,2 NADPH 
D) 6 ATP,3 NADPH 
E) none of the above

Question 5

The regeneration phase of the dark reactions are best considered in terms of regenerating 6 molecules of ribulose-1,5-bisphosphate,a process that requires 6 ATP.Considering the number of photons required for production of ATP in the light reactions,on average,how many photons must be absorbed for each molecule of ribulose-1,5-bisphosphate regenerated?

Accepted Answer

A) 1.5 
B) 3 
C) 4.5 
D) 6 
E) 9 
A) 1.5 
B) 3 
C) 4.5 
D) 6 
E) 9

For every 12 molecules of 3-phosphoglycerate produced by rubisco,_ are converted to hexoses while _ are recycled to ribulose-1,5-bisphosphate.

Which of the following shows the overall equation for the light reactions?

Under what conditions does the cyclic electron flow of photosystem I occur?

For each molecule of CO₂ fixed by the Calvin cycle,how many ATP and NADPH are required?

The Scope of Biochemistry

The Matrix of Life: Weak Interactions in an Aqueous Environment

The Energetics of Life

Nucleic Acids

Introduction to Proteins: the Primary Level of Protein Structure

The Three-Dimensional Structure of Proteins

Protein Function and Evolution

Contractile Proteins and Molecular Motors

Carbohydrates: Sugars,saccharides,glycans

Lipids,membranes and Cellular Transport

Enzymes: Biological Catalysts

Chemical Logic of Metabolism

Carbohydrate Metabolism: Glycolysis, gluconeogenesis, glycogen Metabolism, and the Pentose Phosphate Pathway

Citric Acid Cycle and Glyoxylate Cycle

Electron Transport, oxidative Phosphorylation, and Oxygen Metabolism

Lipid Metabolism I: Fatty Acids,triacylglycerols,and Lipoproteins

Interorgan and Intracellular Coordination of Energy Metabolism in Vertebrates

Lipid Metabolism Ii: Membrane Lipids, steroids, isoprenoids, and Eicosanoids

Metabolism of Nitrogenous Compounds I: Principles of Biosynthesis, utilization, and Turnover

Metabolism of Nitogenous Compounds Ii: Amino Acids, porphyrins, and Neurotransmitters

Nucleotide Metabolism

Mechanisms of Signal Transduction

Genes,genomes and Chromosomes

Dna Replication

Dna Restructuring: Repair,recombination,rearrangement,amplification

Information Readout: Transcription and Post-Transcriptional Processing

Information Decoding: Translation and Post-Translational Protein Processing

Regulation of Gene Expression

Filters

Exam 16: Photosynthesis

For every 12 molecules of 3-phosphoglycerate produced by rubisco,_____ are converted to hexoses while _____ are recycled to ribulose-1,5-bisphosphate.

Which of the following shows the overall equation for the light reactions?

Under what conditions does the cyclic electron flow of photosystem I occur?

For each molecule of CO2 fixed by the Calvin cycle,how many ATP and NADPH are required?

The Scope of Biochemistry

The Matrix of Life: Weak Interactions in an Aqueous Environment

The Energetics of Life

Nucleic Acids

Introduction to Proteins: the Primary Level of Protein Structure

The Three-Dimensional Structure of Proteins

Protein Function and Evolution

Contractile Proteins and Molecular Motors

Carbohydrates: Sugars,saccharides,glycans

Lipids,membranes and Cellular Transport

Enzymes: Biological Catalysts

Chemical Logic of Metabolism

Carbohydrate Metabolism: Glycolysis, gluconeogenesis, glycogen Metabolism, and the Pentose Phosphate Pathway

Citric Acid Cycle and Glyoxylate Cycle

Electron Transport, oxidative Phosphorylation, and Oxygen Metabolism

Lipid Metabolism I: Fatty Acids,triacylglycerols,and Lipoproteins

Interorgan and Intracellular Coordination of Energy Metabolism in Vertebrates

Lipid Metabolism Ii: Membrane Lipids, steroids, isoprenoids, and Eicosanoids

Metabolism of Nitrogenous Compounds I: Principles of Biosynthesis, utilization, and Turnover

Metabolism of Nitogenous Compounds Ii: Amino Acids, porphyrins, and Neurotransmitters

Nucleotide Metabolism

Mechanisms of Signal Transduction

Genes,genomes and Chromosomes

Dna Replication

Dna Restructuring: Repair,recombination,rearrangement,amplification

Information Readout: Transcription and Post-Transcriptional Processing

Information Decoding: Translation and Post-Translational Protein Processing

Regulation of Gene Expression

Filters

For every 12 molecules of 3-phosphoglycerate produced by rubisco,_ are converted to hexoses while _ are recycled to ribulose-1,5-bisphosphate.

For each molecule of CO₂ fixed by the Calvin cycle,how many ATP and NADPH are required?