Question 1

All of the following are part of the Calvin cycle EXCEPT

Accepted Answer

A)  generation of ATP. 
B)  carbon fixation. 
C)  regeneration of RuBP. 
D)  synthesis of G3P. 
A)  generation of ATP. 
B)  carbon fixation. 
C)  regeneration of RuBP. 
D)  synthesis of G3P. A

Question 2

Give the simplest chemical equation for photosynthesis. For each reactant, indicate where the plant acquires it. For each product, note during what part of photosynthesis it is produced.

Accepted Answer

The chemical equation for photosynthesis is
6 CO₂ + 6 H₂O + light energy -C6H12O6 + 6 O₂
CO₂ comes through the stomata, water comes from the vascular bundles (or veins) to the mesophyll cells, and chlorophyll molecules embedded in the thylakoid membrane of the chloroplast absorb sunlight. The glucose is produced immediately following the Calvin cycle, and the oxygen is produced during the light reactions.

Question 3

Which of the following provides O2 as an end product?

Accepted Answer

A)  Light- independent reactions 
B)  Glycolysis 
C)  Cellular respiration 
D)  Light reactions 
E)  Synthesis 
A)  Light- independent reactions 
B)  Glycolysis 
C)  Cellular respiration 
D)  Light reactions 
E)  Synthesis D

Question 4

What is produced in the electron transport system associated with photosystem II?

Accepted Answer

A)  NADPH 
B)  Glucose 
C)  ATP 
D)  O2 
E)  CO2 
A)  NADPH 
B)  Glucose 
C)  ATP 
D)  O2 
E)  CO2

Question 5

Before photosynthesis evolved, was rare in Earth's atmosphere.

Accepted Answer

A)  air 
B)  N2 
C)  CO2 
D)  H2O 
E)  O2 
A)  air 
B)  N2 
C)  CO2 
D)  H2O 
E)  O2

Question 6

Consider the scenario of two scientists conducting an experiment to track what happens to the carbon atoms from CO2 molecules used during the Calvin cycle of photosynthesis. They add a radioactive "tag" to the carbon atoms of the CO2 reactants and then collect the products following the reactions. They analyze the products for t level of radioactivity. Which product(s) would you expect to be radioactive?

Accepted Answer

A)  Both ATP and water 
B)  Glucose only 
C)  Both water and glucose 
D)  ATP only 
E)  Water only 
A)  Both ATP and water 
B)  Glucose only 
C)  Both water and glucose 
D)  ATP only 
E)  Water only

Question 7

What happens to CO2 when it moves into the stroma?

Accepted Answer

A)  It gets incorporated into the Calvin cycle and goes toward the formation of glucose. 
B)  It is converted to water. 
C)  It immediately passes on to the thylakoids. 
D)  The CO2 becomes a by- product of cellular respiration. 
E)  The CO2 splits into C and O2. 
A)  It gets incorporated into the Calvin cycle and goes toward the formation of glucose. 
B)  It is converted to water. 
C)  It immediately passes on to the thylakoids. 
D)  The CO2 becomes a by- product of cellular respiration. 
E)  The CO2 splits into C and O2.

Question 8

In the chloroplast, energy in sunlight is passed around different chlorophyll molecules until it reaches a specific chlorophyll molecule that can transfer energy in sunlight to an energized electron. This chlorophyll molecule is called the

Accepted Answer

A)  reaction center. 
B)  photoelectric point. 
C)  nucleus. 
D)  electron- carrier molecule. 
E)  accessory pigment. 
A)  reaction center. 
B)  photoelectric point. 
C)  nucleus. 
D)  electron- carrier molecule. 
E)  accessory pigment.

Question 9

The replacement electrons for the reaction center of photosystem II come from

Accepted Answer

A)  glucose. 
B)  photosystem I. 
C)  H2O. 
D)  O2. 
E)  NADPH. 
A)  glucose. 
B)  photosystem I. 
C)  H2O. 
D)  O2. 
E)  NADPH.

Question 10

A(n) is composed of a light- harvesting complex of chlorophyll pigments and an electron transport system.

Accepted Answer

The answer of A(n) is composed of a light- harvesting...

Question 11

The majority of the leaf's chloroplasts are found in the mesophyll cells.

Accepted Answer

A) True 
 B)False

Question 12

What is photorespiration? Describe how C4 plants have evolved the ability to reduce photorespiration.

Accepted Answer

Photorespiration occurs when RuBP combin

Question 13

During the Calvin cycle, the combination of oxygen with RuBP rather than carbon dioxide is called .

Accepted Answer

The answer of During the Calvin cycle, the combination of...

Question 14

What structural feature of a leaf enables it to obtain CO2 from the air?

Accepted Answer

A)  Chloroplast 
B)  Stomata 
C)  Epidermis 
D)  Cuticle 
E)  Mesophyll 
A)  Chloroplast 
B)  Stomata 
C)  Epidermis 
D)  Cuticle 
E)  Mesophyll

Question 15

The light reactions of photosynthesis result in which of the following?

Accepted Answer

A)  Oxidation of chlorophyll 
B)  Oxidation of CO2 
C)  Production of ATP 
D)  Reduction of H2O 
E)  Oxidation of glucose 
A)  Oxidation of chlorophyll 
B)  Oxidation of CO2 
C)  Production of ATP 
D)  Reduction of H2O 
E)  Oxidation of glucose

Question 16

Where do the reactions of a C4 pathway occur in a plant such as corn?

Accepted Answer

A)  Mesophyll and bundle sheath cells 
B)  Bundle sheath cells only 
C)  Bundle sheath and epidermal cells 
D)  Mesophyll cells only 
E)  Epidermal cells only 
A)  Mesophyll and bundle sheath cells 
B)  Bundle sheath cells only 
C)  Bundle sheath and epidermal cells 
D)  Mesophyll cells only 
E)  Epidermal cells only

Question 17

is the main light- capturing molecule in chloroplasts and is responsible for giving leaves their characteristic green color.

Accepted Answer

The answer of is the main light- capturing molecule in...

Question 18

Carbon dioxide is required in the light reactions of photosynthesis.

Accepted Answer

A) True 
 B)False

Question 19

Suppose that you are experimenting with different types of lighting for your indoor green plants. Which of the following colors of light will be most effective?

Accepted Answer

A)  Red and green 
B)  Red and blue 
C)  Orange and yellow 
D)  Black 
E)  Green 
A)  Red and green 
B)  Red and blue 
C)  Orange and yellow 
D)  Black 
E)  Green

Question 20

How are the light reactions and the Calvin cycle related to each other?

Accepted Answer

The light reactions produce th

Exam 7: Capturing Solar Energy: Photosynthesis

All of the following are part of the Calvin cycle EXCEPT

Give the simplest chemical equation for photosynthesis. For each reactant, indicate where the plant acquires it. For each product, note during what part of photosynthesis it is produced.

Which of the following provides O2 as an end product?

What is produced in the electron transport system associated with photosystem II?

Before photosynthesis evolved, was rare in Earth's atmosphere.

What happens to CO2 when it moves into the stroma?

In the chloroplast, energy in sunlight is passed around different chlorophyll molecules until it reaches a specific chlorophyll molecule that can transfer energy in sunlight to an energized electron. This chlorophyll molecule is called the

The replacement electrons for the reaction center of photosystem II come from

A(n) is composed of a light- harvesting complex of chlorophyll pigments and an electron transport system.

The majority of the leaf's chloroplasts are found in the mesophyll cells.

What is photorespiration? Describe how C4 plants have evolved the ability to reduce photorespiration.

During the Calvin cycle, the combination of oxygen with RuBP rather than carbon dioxide is called .

What structural feature of a leaf enables it to obtain CO2 from the air?

The light reactions of photosynthesis result in which of the following?

Where do the reactions of a C4 pathway occur in a plant such as corn?

is the main light- capturing molecule in chloroplasts and is responsible for giving leaves their characteristic green color.

Carbon dioxide is required in the light reactions of photosynthesis.

Suppose that you are experimenting with different types of lighting for your indoor green plants. Which of the following colors of light will be most effective?

How are the light reactions and the Calvin cycle related to each other?

An Introduction to Life on Earth

Atoms, Molecules, and Life

Biological Molecules

Cell Structure and Function

Cell Membrane Structure and Function

Energy Flow in the Life of a Cell

Harvesting Energy: Glycolysis and Cellular Respiration

Cellular Reproduction

Meiosis: the Basis of Sexual Reproduction

Patterns of Inheritance

Dna: the Molecule of Heredity

Gene Expression and Regulation

Biotechnology

Principles of Evolution

How Populations Evolve

The Origin of Species

The History of Life

Systematics: Seeking Order Amid Diversity

The Diversity of Prokaryotes and Viruses

The Diversity of Protists

The Diversity of Plants

The Diversity of Fungi

Animal Diversity I: Invertebrates

Animal Diversity II: Vertebrates

Animal Behavior

Population Growth and Regulation

Community Interactions

Energy Flow and Nutrient Cycling in Ecosystems

Earths Diverse Ecosystems

Conserving Earths Biodiversity

Homeostasis and the Organization of the Animal Body

Circulation

Respiration

Nutrition and Digestion

The Urinary System

Defenses Against Disease

Chemical Control of the Animal Body: the Endocrine System

The Nervous System

The Senses

Action and Support: the Muscles and Skeleton

Animal Reproduction

Animal Development

Plant Anatomy and Nutrient Transport

Plant Reproduction and Development

Plant Responses to the Environment

Filters

Which of the following provides O₂ as an end product?

What happens to CO₂ when it moves into the stroma?

What structural feature of a leaf enables it to obtain CO₂ from the air?