Question 1

ATP synthesis during the light-dependent reactions occurs by which process?

Accepted Answer

A)  Diffusion 
B)  Photolysis 
C)  Chemiosmosis 
D)  Phosphorylation 
E)  Cyclic electron transport 
A)  Diffusion 
B)  Photolysis 
C)  Chemiosmosis 
D)  Phosphorylation 
E)  Cyclic electron transport

Question 2

During photosynthesis, ____ is reduced and ____ is oxidized.

Accepted Answer

A)  O2; H2O 
B)  CO2; H2O 
C)  O2; C6H12O6 
D)  H2O; C6H12O6 
E)  CO2; C6H12O6 
A)  O2; H2O 
B)  CO2; H2O 
C)  O2; C6H12O6 
D)  H2O; C6H12O6 
E)  CO2; C6H12O6

Question 3

The establishment of the proton gradient is a very important part of photosynthesis. Briefly explain how the gradient is formed, where it occurs within the cell, and what is its role in photosynthesis.

Accepted Answer

The proton gradient is established acros

Question 4

Match between columns
                        Premises: Reaction center of photosystem II

Accepted Answer

The Answer of Carotenoids and P700 and P680 and Antenna is...

Question 5

How are chlorophyll molecules attached to thylakoid membranes?

Accepted Answer

A)  By a magnesium ion 
B)  With a porphyrin ring 
C)  With a methyl group 
D)  By a hydroxide group 
E)  By a long hydrocarbon side chain 
A)  By a magnesium ion 
B)  With a porphyrin ring 
C)  With a methyl group 
D)  By a hydroxide group 
E)  By a long hydrocarbon side chain

Question 6

The synthesis of ATP during photosynthesis or respiration is the result of what process?

Accepted Answer

A)  Oxidation of NADPH 
B)  Phosphorylation of ATP 
C)  Phosphorylation of ADP 
D)  Phosphorylation of G3P 
E)  Photophosphorylation of AMP 
A)  Oxidation of NADPH 
B)  Phosphorylation of ATP 
C)  Phosphorylation of ADP 
D)  Phosphorylation of G3P 
E)  Photophosphorylation of AMP

Question 7

Which organism would be classified as a chemoautotroph?

Accepted Answer

A)  Cactus 
B)  Lichen 
C)  Oak tree 
D)  Green algae 
E)  Nitrogen-fixing bacteria 
A)  Cactus 
B)  Lichen 
C)  Oak tree 
D)  Green algae 
E)  Nitrogen-fixing bacteria

Question 8

Surrounding the grana is the thylakoid lumen.

Accepted Answer

A) True 
 B)False

Question 9

Ribulose phosphate is synthesized from which molecule?

Accepted Answer

A)  CO2 
B)  G3P 
C)  RuBP 
D)  NADP+ 
E)  Pyruvate 
A)  CO2 
B)  G3P 
C)  RuBP 
D)  NADP+ 
E)  Pyruvate

Question 10

An absorption spectrum indicates the relative effectiveness of different wavelengths of light in powering photosynthesis.

Accepted Answer

A) True 
 B)False

Question 11

Match between columns
                        Premises: A green accessory pigment

Accepted Answer

The Answer of Chlorophyll b and P680 and Carotenoids and is...

Question 12

Which of the following are accessory photosynthetic pigments that expand the spectrum of light to provide energy for photosynthesis?

Accepted Answer

A)  Carotenoids only 
B)  Chlorophyll a only 
C)  Chlorophyll b only 
D)  Carotenoids and chlorophyll a 
E)  Carotenoids and chlorophyll b 
A)  Carotenoids only 
B)  Chlorophyll a only 
C)  Chlorophyll b only 
D)  Carotenoids and chlorophyll a 
E)  Carotenoids and chlorophyll b

Question 13

ATP is generated when protons flow through the cytochrome complex in the thylakoid membrane.

Accepted Answer

A) True 
 B)False

Question 14

Which best summarizes the overall reactions of photosynthesis?

Accepted Answer

A)  6CO2 + 12H2O → C6H12O6 + 12O2. 
B)  C6H12O6 + 6O2 + 6H2O → 6CO2 + 12H2O 
C)  6CO2 + 12H2O → C6H12O6 + 6O2 + 6H2O 
D)  12CO2 + 6H2O → C6H12O6 + 12O2 + 6H2O 
E)  6H2CO3 + 6H2O → C6H12O6 + C6H12O6 + 6H2O + 6O2 
A)  6CO2 + 12H2O → C6H12O6 + 12O2. 
B)  C6H12O6 + 6O2 + 6H2O → 6CO2 + 12H2O 
C)  6CO2 + 12H2O → C6H12O6 + 6O2 + 6H2O 
D)  12CO2 + 6H2O → C6H12O6 + 12O2 + 6H2O 
E)  6H2CO3 + 6H2O → C6H12O6 + C6H12O6 + 6H2O + 6O2

Question 15

Match between columns
                        Premises: Phosphorylates PGA

Accepted Answer

The Answer of ATP and RuBP and G3P and Rubisco is...

Question 16

Even though the steps of photosynthesis that produce sugar molecules are part of the carbon fixation reactions, the light-dependent reactions are essential for sugar synthesis. Explain the role of the light-dependent reactions in the formation of the end products of photosynthesis.

Accepted Answer

Concepts to Consider: The light-dependen

Question 17

Most plants are known as photoheterotrophs.

Accepted Answer

A) True 
 B)False

Question 18

In C3 plants, the ____ are typically closed at night and open during the daytime to allow for gas exchange.

Accepted Answer

A)  grana 
B)  stomata 
C)  cuticles 
D)  epidermis 
E)  spongy mesophyll 
A)  grana 
B)  stomata 
C)  cuticles 
D)  epidermis 
E)  spongy mesophyll

Question 19

What are the two phases of photosynthesis?

Accepted Answer

A)  Chemiosmosis and photochemical reactions 
B)  Carbon reduction reactions and oxidation reactions 
C)  Light-dependent reactions and carbon fixation reactions 
D)  Carbon fixation reactions and oxygen fixation reactions 
E)  Light-independent reactions and carbon fixation reactions 
A)  Chemiosmosis and photochemical reactions 
B)  Carbon reduction reactions and oxidation reactions 
C)  Light-dependent reactions and carbon fixation reactions 
D)  Carbon fixation reactions and oxygen fixation reactions 
E)  Light-independent reactions and carbon fixation reactions

Exam 9: Photosynthesis: Capturing Light Energy

ATP synthesis during the light-dependent reactions occurs by which process?

During photosynthesis, ____ is reduced and ____ is oxidized.

The establishment of the proton gradient is a very important part of photosynthesis. Briefly explain how the gradient is formed, where it occurs within the cell, and what is its role in photosynthesis.

How are chlorophyll molecules attached to thylakoid membranes?

The synthesis of ATP during photosynthesis or respiration is the result of what process?

Which organism would be classified as a chemoautotroph?

Surrounding the grana is the thylakoid lumen.

Ribulose phosphate is synthesized from which molecule?

An absorption spectrum indicates the relative effectiveness of different wavelengths of light in powering photosynthesis.

Which of the following are accessory photosynthetic pigments that expand the spectrum of light to provide energy for photosynthesis?

ATP is generated when protons flow through the cytochrome complex in the thylakoid membrane.

Which best summarizes the overall reactions of photosynthesis?

Even though the steps of photosynthesis that produce sugar molecules are part of the carbon fixation reactions, the light-dependent reactions are essential for sugar synthesis. Explain the role of the light-dependent reactions in the formation of the end products of photosynthesis.

Most plants are known as photoheterotrophs.

In C3 plants, the ____ are typically closed at night and open during the daytime to allow for gas exchange.

What are the two phases of photosynthesis?

A View of Life

Atoms and Molecules: the Chemical Basis of Life

The Chemistry of Life: Organic Compounds

Organization of the Cell

Biological Membranes

Cell Communication

Energy and Metabolism

How Cells Make Atp: Energy-Releasing Pathways

Chromosomes, Mitosis, and Meiosis

The Basic Principles of Heredity

DNA: The Carrier of Genetic Information

Gene Expression

Gene Regulation

DNA Technology and Genomics

Human Genetics and the Human Genome

Developmental Genetics

Introduction to Darwinian Evolution

Evolutionary Change in Populations

Speciation and Macroevolution

The Origin and Evolutionary History of Life

The Evolution of Primates

Understanding Diversity: Systematics

Viruses and Subviral Agents

Bacteria and Archaea

Protists

Seedless Plants

Seed Plants

The Fungi

An Introduction to Animal Diversity

Sponges, Cnidarians, Ctenophores, and Protostomes

The Deuterostomes

Plant Structure, Growth, and Development

Leaf Structure and Function

Stem Structure and Transport

Roots and Mineral Nutrition

Reproduction in Flowering Plants

Plant Developmental Responses to External and Internal Signals

Animal Structure and Function: an Introduction

Protection, Support, and Movement

Neural Signaling

Neural Regulation

Sensory Systems

Internal Transport

The Immune System: Internal Defense

Gas Exchange

Processing Food and Nutrition

Osmoregulation and Disposal of Metabolic Wastes

Endocrine Regulation

Reproduction

Animal Development

Animal Behavior

Introduction to Ecology: Population Ecology

Community Ecology

Ecosystems and the Biosphere

Ecology and the Geography of Life

Biological Diversity and Conservation Biology

Filters

During photosynthesis, is reduced and is oxidized.

In C₃ plants, the ____ are typically closed at night and open during the daytime to allow for gas exchange.