Question 1

The arrangement of photosystems I and II in the thylakoid membrane is exactly like that drawn in the Z-pathway of most textbooks.

Accepted Answer

A) True 
 B)False

Question 2

Match the name of the process to its description.
-The process which produces both ATP and NADPH.

Accepted Answer

A) noncyclic electron transport 
B) cyclic electron transport 
C) carbon fixation stage of the Calvin cycle 
D) carbon reduction stage of the Calvin cycle 
E) RuBP regeneration stage of the Calvin cycle 
A) noncyclic electron transport 
B) cyclic electron transport 
C) carbon fixation stage of the Calvin cycle 
D) carbon reduction stage of the Calvin cycle 
E) RuBP regeneration stage of the Calvin cycle

Question 3

Which thylakoid membrane component oxidizes when photosystem I absorbs light energy?

Accepted Answer

A)  NADP+ reductase 
B)  P700 
C)  plastocyanin 
D)  P680 
A)  NADP+ reductase 
B)  P700 
C)  plastocyanin 
D)  P680

Question 4

If the Calvin cycle could proceed without light reactions, choose the most appropriate process for each of the two reactions.
-occurs only during the daytime

Accepted Answer

A) only light reactions 
B) only the Calvin cycle 
C) both light reactions and the Calvin cycle 
D) neither the light reactions nor the Calvin cycle 
A) only light reactions 
B) only the Calvin cycle 
C) both light reactions and the Calvin cycle 
D) neither the light reactions nor the Calvin cycle

Question 5

What are the reactants and products that link the light reactions to the Calvin cycle?

Accepted Answer

A)  CO2 and NADPH 
B)  ATP and NADH 
C)  ATP and NADPH 
D)  FADH2 and CO2 
A)  CO2 and NADPH 
B)  ATP and NADH 
C)  ATP and NADPH 
D)  FADH2 and CO2

Question 6

Match the terms and descriptions with the correct labelled part in the fllowing illustration. A labelled part may be used once, more than once, or not at all.  
-place to find carotenoids

Accepted Answer

The answer of Match the terms and descriptions with the...

Question 7

Not all plants can use the C4 pathway to avoid photorespiration.

Accepted Answer

A) True 
 B)False

Question 8

To which thylakoid membrane does photosystem II first donate the electrons it acquires from water?

Accepted Answer

A)  photosystem I 
B)  plastoquinone 
C)  cytochrome complex 
D)  ferredoxin 
A)  photosystem I 
B)  plastoquinone 
C)  cytochrome complex 
D)  ferredoxin

Question 9

Photosynthesis is a process by which chemical energy is converted into light energy.

Accepted Answer

A) True 
 B)False

Question 10

Which molecule associated with photorespiration is toxic to plant cells?

Accepted Answer

A)  phosphoglycolate 
B)  3PGA 
C)  glycolate 
D)  G3P 
A)  phosphoglycolate 
B)  3PGA 
C)  glycolate 
D)  G3P

Question 11

If the Calvin cycle could proceed without light reactions, choose the most appropriate process for each of the two reactions.
-produces ATP

Accepted Answer

A) only light reactions 
B) only the Calvin cycle 
C) both light reactions and the Calvin cycle 
D) neither the light reactions nor the Calvin cycle 
A) only light reactions 
B) only the Calvin cycle 
C) both light reactions and the Calvin cycle 
D) neither the light reactions nor the Calvin cycle

Question 12

Which of the following best describes the antenna complex?

Accepted Answer

A)  energy-harvesting complex 
B)  light-harvesting complex 
C)  sound-harvesting complex 
D)  colour-harvesting complex 
A)  energy-harvesting complex 
B)  light-harvesting complex 
C)  sound-harvesting complex 
D)  colour-harvesting complex

Question 13

Where does photosynthesis occur in eukaryotes?

Accepted Answer

A)  in the mitochondria 
B)  in the chloroplasts 
C)  in the plasma membrane 
D)  in the cytosol 
A)  in the mitochondria 
B)  in the chloroplasts 
C)  in the plasma membrane 
D)  in the cytosol

Question 14

Which sentence best describes fluorescence?

Accepted Answer

A)  A pigment molecule accepts a high-energy electron and releases a photon of energy. 
B)  A high-energy electron leaves its nucleus and moves to a different molecule. 
C)  A high-energy electron returns to its ground state by releasing energy in a photon. 
D)  A low-energy electron moves to a high-energy state by absorbing heat. 
A)  A pigment molecule accepts a high-energy electron and releases a photon of energy. 
B)  A high-energy electron leaves its nucleus and moves to a different molecule. 
C)  A high-energy electron returns to its ground state by releasing energy in a photon. 
D)  A low-energy electron moves to a high-energy state by absorbing heat.

Question 15

If the Calvin cycle could proceed without light reactions, choose the most appropriate process for each of the two reactions.
-requires ATP

Accepted Answer

A) only light reactions 
B) only the Calvin cycle 
C) both light reactions and the Calvin cycle 
D) neither the light reactions nor the Calvin cycle 
A) only light reactions 
B) only the Calvin cycle 
C) both light reactions and the Calvin cycle 
D) neither the light reactions nor the Calvin cycle

Question 16

Match each term with its definition.
-photosystems

Accepted Answer

A) the generation of ATP via a proton gradient created by light-energized electrons moving down an electron transport chain 
B) the site of the Calvin cycle in the chloroplast 
C) complexes of light-absorbing molecules clustered in the thylakoid membranes of chloroplasts 
D) the addition of O2 to RuBP by rubisco, resulting in a net loss of carbon from the Calvin cycle 
E) the molecule used to store carbon overnight in CAM plants
F)organisms that use CO2 as their carbon source and light as their energy source 
A) the generation of ATP via a proton gradient created by light-energized electrons moving down an electron transport chain 
B) the site of the Calvin cycle in the chloroplast 
C) complexes of light-absorbing molecules clustered in the thylakoid membranes of chloroplasts 
D) the addition of O2 to RuBP by rubisco, resulting in a net loss of carbon from the Calvin cycle 
E) the molecule used to store carbon overnight in CAM plants
F)organisms that use CO2 as their carbon source and light as their energy source

Question 17

Match the terms and descriptions with the correct labelled part in the fllowing illustration. A labelled part may be used once, more than once, or not at all.  
-site of light reactions

Accepted Answer

The answer of Match the terms and descriptions with the...

Question 18

If the Calvin cycle could proceed without light reactions, choose the most appropriate process for each of the two reactions.
-produces ADP

Accepted Answer

A) only light reactions 
B) only the Calvin cycle 
C) both light reactions and the Calvin cycle 
D) neither the light reactions nor the Calvin cycle 
A) only light reactions 
B) only the Calvin cycle 
C) both light reactions and the Calvin cycle 
D) neither the light reactions nor the Calvin cycle

Question 19

Match each term with its definition.
-malate

Accepted Answer

A) the generation of ATP via a proton gradient created by light-energized electrons moving down an electron transport chain 
B) the site of the Calvin cycle in the chloroplast 
C) complexes of light-absorbing molecules clustered in the thylakoid membranes of chloroplasts 
D) the addition of O2 to RuBP by rubisco, resulting in a net loss of carbon from the Calvin cycle 
E) the molecule used to store carbon overnight in CAM plants
F)organisms that use CO2 as their carbon source and light as their energy source 
A) the generation of ATP via a proton gradient created by light-energized electrons moving down an electron transport chain 
B) the site of the Calvin cycle in the chloroplast 
C) complexes of light-absorbing molecules clustered in the thylakoid membranes of chloroplasts 
D) the addition of O2 to RuBP by rubisco, resulting in a net loss of carbon from the Calvin cycle 
E) the molecule used to store carbon overnight in CAM plants
F)organisms that use CO2 as their carbon source and light as their energy source

Question 20

Which of the following absorb the photons of light in photosynthesis?

Accepted Answer

A)  chlorophyll and carotenoids 
B)  chlorophyll and thylakoid membrane 
C)  carotenoids and stroma 
D)  thylakoid membrane and stroma 
A)  chlorophyll and carotenoids 
B)  chlorophyll and thylakoid membrane 
C)  carotenoids and stroma 
D)  thylakoid membrane and stroma

Exam 6: Photosynthesis

The arrangement of photosystems I and II in the thylakoid membrane is exactly like that drawn in the Z-pathway of most textbooks.

Match the name of the process to its description. -The process which produces both ATP and NADPH.

Which thylakoid membrane component oxidizes when photosystem I absorbs light energy?

If the Calvin cycle could proceed without light reactions, choose the most appropriate process for each of the two reactions. -occurs only during the daytime

What are the reactants and products that link the light reactions to the Calvin cycle?

Match the terms and descriptions with the correct labelled part in the fllowing illustration. A labelled part may be used once, more than once, or not at all. -place to find carotenoids

Not all plants can use the C4 pathway to avoid photorespiration.

To which thylakoid membrane does photosystem II first donate the electrons it acquires from water?

Photosynthesis is a process by which chemical energy is converted into light energy.

Which molecule associated with photorespiration is toxic to plant cells?

If the Calvin cycle could proceed without light reactions, choose the most appropriate process for each of the two reactions. -produces ATP

Which of the following best describes the antenna complex?

Where does photosynthesis occur in eukaryotes?

Which sentence best describes fluorescence?

If the Calvin cycle could proceed without light reactions, choose the most appropriate process for each of the two reactions. -requires ATP

Match each term with its definition. -photosystems

Match the terms and descriptions with the correct labelled part in the fllowing illustration. A labelled part may be used once, more than once, or not at all. -site of light reactions

If the Calvin cycle could proceed without light reactions, choose the most appropriate process for each of the two reactions. -produces ADP

Match each term with its definition. -malate

Which of the following absorb the photons of light in photosynthesis?

Light and Life

The Cell: an Overview

Energy and Enzymes

Cell Membranes and Signaling

Cellular Respiration

Cell Cycles

Genetic Recombination

The Chromosomal Basis of Mendelian Inheritance

Genetic Linkage, Sex-Linkage, and Other Non-Mendelian Inheritance Mechanisms

DNA Structure, Replication, and Repair

Gene Structure Expression, and Mutation

Regulation of Gene Expression

Dna Technologies

Genomes

Evolution: the Development of the Theory

Microevolution: Changes Within Populations

Speciation and Macroevolution

Systematics and Phylogenetics: Revealing the Tree of Life

Humans and Evolution

Defining Life and Its Origins

Viruses, Viroids, and Prions: Infectious Biological Particles

Bacteria and Archaea

Protists

Fungi

Plants

Animals

Conservation of Biodiversity

Population Ecology

Species Interactions and Community Ecology

Ecosystems

Animal Behaviour

Organization of the Plant Body

Transport in Plants

Reproduction and Development in Flowering Plants

Plant Nutrition

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Animal Nutrition

Gas Exchange: the Respiratory System

Internal Transport: the Circulatory System

Regulation of the Internal Environment: Water, Solutes, and Temperature

Control of Animal Processes: Endocrine Control

Animal Reproduction

Control of Animal Processes: Neural Control

Muscles, Skeletons, and Body Movements

Filters

Not all plants can use the C₄ pathway to avoid photorespiration.