Question 1

The chlorophyll molecule has a porphyrin ring that contains a single atom of:

Accepted Answer

A)  manganese. 
B)  magnesium. 
C)  phosphorus. 
D)  nitrogen. 
E)  iron. 
A)  manganese. 
B)  magnesium. 
C)  phosphorus. 
D)  nitrogen. 
E)  iron.

Question 2

Match the component of the Calvin cycle with its description:
a.ATP
d.NADPH
b.RuBP
e.Rubisco
c.G3P
-Propose an appropriate solvent to be used in the extraction of photosynthetic pigments from chloroplasts.Explain your choice.

Accepted Answer

Concepts to Consider: A suitable solvent

Question 3

The electron transport chain of photosynthesis is located in the:

Accepted Answer

A)  cristae. 
B)  mitochondria. 
C)  outer chloroplast membrane. 
D)  chloroplast stroma. 
E)  thylakoid membrane. 
A)  cristae. 
B)  mitochondria. 
C)  outer chloroplast membrane. 
D)  chloroplast stroma. 
E)  thylakoid membrane.

Question 4

When photosynthetic pigments are extracted from the chloroplasts of green plants, they have a higher tendency to fluoresce than pigments within intact chloroplasts.Explain this phenomenon.

Accepted Answer

Concepts to Consider: Extracted pigments

Question 5

Explain the origin, location, and function of the proton gradient in the process of photosynthesis.

Accepted Answer

The proton gradient is established in th

Question 6

Chlorophyll and accessory photosynthetic pigments are associated with the:

Accepted Answer

A)  stroma. 
B)  thylakoid membranes. 
C)  mesophyll membranes. 
D)  light reaction centers of the stroma lamellae. 
E)  stroma grana. 
A)  stroma. 
B)  thylakoid membranes. 
C)  mesophyll membranes. 
D)  light reaction centers of the stroma lamellae. 
E)  stroma grana.

Question 7

MATCHING
Match the photosynthetic component with its description.
a.P680
d.chlorophyll b
b.P700
e.antenna complex
c.carotenoids
-reaction center for photosystem I

Accepted Answer

The answer of MATCHING
Match the photosynthetic component with its description.
a.P680
d.chlorophyll...

Question 8

Match the component of the Calvin cycle with its description:
a.ATP
d.NADPH
b.RuBP
e.Rubisco
c.G3P
-two of these molecules leave the Calvin cycle and react, forming glucose or fructose

Accepted Answer

The answer of Match the component of the Calvin cycle...

Question 9

The first step in the Calvin cycle is the attachment of carbon dioxide to:

Accepted Answer

A)  Rubisco. 
B)  glyceraldehyde 3-phosphate (G3P). 
C)  phosphoglycerate 
D)  RuBP (ribulose bisphosphate). 
E)  ATP. 
A)  Rubisco. 
B)  glyceraldehyde 3-phosphate (G3P). 
C)  phosphoglycerate 
D)  RuBP (ribulose bisphosphate). 
E)  ATP.

Question 10

Plants, algae, and certain prokaryotes are:

Accepted Answer

A)  photoheterotrophs 
B)  chemoheterotrophs. 
C)  chemoautotrophs. 
D)  independent trophs. 
E)  photoautotrophs. 
A)  photoheterotrophs 
B)  chemoheterotrophs. 
C)  chemoautotrophs. 
D)  independent trophs. 
E)  photoautotrophs.

Question 11

In C4 plants, reactions that fix CO2 into four-carbon compounds occur in:

Accepted Answer

A)  guard cells. 
B)  epidermal cells. 
C)  bundle sheath cells. 
D)  mesophyll cells. 
E)  xylem cells. 
A)  guard cells. 
B)  epidermal cells. 
C)  bundle sheath cells. 
D)  mesophyll cells. 
E)  xylem cells.

Question 12

How many electrons are needed to reduce one molecule of NADP+ to NADPH?

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
E)  5 
A)  1 
B)  2 
C)  3 
D)  4 
E)  5

Question 13

An absorption spectrum indicates the relative effectiveness of different wavelengths of light.
__________________

Accepted Answer

A) True 
 B)False

Question 14

The reactants of the Calvin cycle are:

Accepted Answer

A)  H2O, ATP, and NADPH. 
B)  CO2, ADP, and NADP+. 
C)  CO2, ATP, and NADPH. 
D)  H2O, ATP, and NADPH 
E)  CO2, H2O, and ATP. 
A)  H2O, ATP, and NADPH. 
B)  CO2, ADP, and NADP+. 
C)  CO2, ATP, and NADPH. 
D)  H2O, ATP, and NADPH 
E)  CO2, H2O, and ATP.

Question 15

MATCHING
Match the photosynthetic component with its description.
a.P680
d.chlorophyll b
b.P700
e.antenna complex
c.carotenoids
-reaction center of photosystem II

Accepted Answer

The answer of MATCHING
Match the photosynthetic component with its description.
a.P680
d.chlorophyll...

Question 16

Electrons that are excited to a higher energy level may be transferred to an electron acceptor or may return to a ground state.If the latter occurs, energy will be released in a process known as:

Accepted Answer

A)  photoelectron degradation. 
B)  fluorescence. 
C)  photoelectron hydrolysis. 
D)  porphyrin. 
E)  photoelectron deconfiguration. 
A)  photoelectron degradation. 
B)  fluorescence. 
C)  photoelectron hydrolysis. 
D)  porphyrin. 
E)  photoelectron deconfiguration.

Question 17

The __________ of a chlorophyll molecule is(are) responsible for absorbing light.

Accepted Answer

A)  carbon atoms 
B)  porphyrin ring 
C)  methyl group 
D)  magnesium ion 
E)  long hydrocarbon tail 
A)  carbon atoms 
B)  porphyrin ring 
C)  methyl group 
D)  magnesium ion 
E)  long hydrocarbon tail

Question 18

Figure 9-1
Use the figure to answer the corresponding question(s).  
-The primary function of the leaf structure labeled 5 in Figure 9-1 is:

Accepted Answer

A)  food storage. 
B)  photosynthesis. 
C)  water transportation. 
D)  gas exchange. 
E)  nutrient absorption. 
A)  food storage. 
B)  photosynthesis. 
C)  water transportation. 
D)  gas exchange. 
E)  nutrient absorption.

Question 19

Even though the steps of photosynthesis that actually produce sugar molecules are part of the carbon fixation reactions, the light-dependent reactions are absolutely 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 20

What is the C4 pathway? Briefly explain how this adaptation increases the effectiveness of photosynthesis in these plants.

Accepted Answer

In the C₄ pathway, CO₂ reacts with PEP in

Exam 9: Photosynthesis: Capturing Light Energy

The chlorophyll molecule has a porphyrin ring that contains a single atom of:

Match the component of the Calvin cycle with its description: a.ATP d.NADPH b.RuBP e.Rubisco c.G3P -Propose an appropriate solvent to be used in the extraction of photosynthetic pigments from chloroplasts.Explain your choice.

The electron transport chain of photosynthesis is located in the:

When photosynthetic pigments are extracted from the chloroplasts of green plants, they have a higher tendency to fluoresce than pigments within intact chloroplasts.Explain this phenomenon.

Explain the origin, location, and function of the proton gradient in the process of photosynthesis.

Chlorophyll and accessory photosynthetic pigments are associated with the:

MATCHING Match the photosynthetic component with its description. a.P680 d.chlorophyll b b.P700 e.antenna complex c.carotenoids -reaction center for photosystem I

Match the component of the Calvin cycle with its description: a.ATP d.NADPH b.RuBP e.Rubisco c.G3P -two of these molecules leave the Calvin cycle and react, forming glucose or fructose

The first step in the Calvin cycle is the attachment of carbon dioxide to:

Plants, algae, and certain prokaryotes are:

In C4 plants, reactions that fix CO2 into four-carbon compounds occur in:

How many electrons are needed to reduce one molecule of NADP+ to NADPH?

An absorption spectrum indicates the relative effectiveness of different wavelengths of light. __________________

The reactants of the Calvin cycle are:

MATCHING Match the photosynthetic component with its description. a.P680 d.chlorophyll b b.P700 e.antenna complex c.carotenoids -reaction center of photosystem II

Electrons that are excited to a higher energy level may be transferred to an electron acceptor or may return to a ground state.If the latter occurs, energy will be released in a process known as:

The __________ of a chlorophyll molecule is(are) responsible for absorbing light.

Figure 9-1 Use the figure to answer the corresponding question(s). -The primary function of the leaf structure labeled 5 in Figure 9-1 is:

What is the C4 pathway? Briefly explain how this adaptation increases the effectiveness of photosynthesis in these plants.

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

In C₄ plants, reactions that fix CO₂ into four-carbon compounds occur in:

How many electrons are needed to reduce one molecule of NADP⁺ to NADPH?

What is the C₄ pathway? Briefly explain how this adaptation increases the effectiveness of photosynthesis in these plants.