Question 1

Which of the following statements describes the function of the electron transport chain (ETC) in photosynthesis?

Accepted Answer

A)  As electrons move through the ETC, they release energy that is used to concentrate protons in the thylakoid lumen. 
B)  As electrons move through the ETC, they catalyze the formation of ATP. 
C)  The ETC releases CO₂ from glucose. 
D)  The ETC captures and stores the electrons given off by NADPH. 
A)  As electrons move through the ETC, they release energy that is used to concentrate protons in the thylakoid lumen. 
B)  As electrons move through the ETC, they catalyze the formation of ATP. 
C)  The ETC releases CO₂ from glucose. 
D)  The ETC captures and stores the electrons given off by NADPH.

Question 2

The conversion of inorganic carbon from air into the carbon atoms found in all living organisms is known as carbon _______.

Accepted Answer

The answer of The conversion of inorganic carbon from air...

Question 3

Since plants are able to capture energy from the sun, why do they need to pass that energy through the chemical reactions necessary to produce ATP?

Accepted Answer

A)  ATP allows the energy to be stored for later use or transferred to other chemical reactions. 
B)  Chloroplasts are unable to use the energy they capture from the sun. 
C)  Producing ATP allows the plant to destroy excess energy that was captured from the sun. 
D)  The mitochondria that capture the sun's energy are unable to use it for respiration. 
A)  ATP allows the energy to be stored for later use or transferred to other chemical reactions. 
B)  Chloroplasts are unable to use the energy they capture from the sun. 
C)  Producing ATP allows the plant to destroy excess energy that was captured from the sun. 
D)  The mitochondria that capture the sun's energy are unable to use it for respiration.

Question 4

The first stage of the breakdown of sugar molecules for energy is

Accepted Answer

A)  glycolysis. 
B)  oxidative phosphorylation. 
C)  the carbon cycle. 
D)  the Krebs cycle. 
A)  glycolysis. 
B)  oxidative phosphorylation. 
C)  the carbon cycle. 
D)  the Krebs cycle.

Question 5

The earliest atmosphere of Earth is not believed to have contained oxygen. Which cellular component would not have been useful at that time?

Accepted Answer

A)  chloroplast 
B)  nucleus 
C)  plasma membrane 
D)  mitochondrion 
A)  chloroplast 
B)  nucleus 
C)  plasma membrane 
D)  mitochondrion

Question 6

As an energy carrier, ATP differs from NADPH in that

Accepted Answer

A)  ATP carries less energy than NADPH. 
B)  ATP transfers energy through redox reactions whereas NADPH uses phosphorylation. 
C)  NADPH is involved in a larger variety of chemical reaction than ATP. 
D)  NADPH is made by Photosystem I whereas ATP is made by Photosystem II. 
A)  ATP carries less energy than NADPH. 
B)  ATP transfers energy through redox reactions whereas NADPH uses phosphorylation. 
C)  NADPH is involved in a larger variety of chemical reaction than ATP. 
D)  NADPH is made by Photosystem I whereas ATP is made by Photosystem II.

Question 7

The burning pain in your muscles during strenuous exercise is a result of

Accepted Answer

A)  the build up of lactic acid during fermentation. 
B)  signals sent to the nervous system by O₂-starved cells. 
C)  the accumulation of pyruvate in the absence of oxidative phosphorylation. 
D)  the lack of ATP needed to regulate the pain receptors in your muscle cells. 
A)  the build up of lactic acid during fermentation. 
B)  signals sent to the nervous system by O₂-starved cells. 
C)  the accumulation of pyruvate in the absence of oxidative phosphorylation. 
D)  the lack of ATP needed to regulate the pain receptors in your muscle cells.

Question 8

NADP++ is

Accepted Answer

A)  oxidized by Photosystem I. 
B)  reduced by Photosystem I. 
C)  reduced by Photosystem II. 
D)  oxidized by Photosystem II. 
A)  oxidized by Photosystem I. 
B)  reduced by Photosystem I. 
C)  reduced by Photosystem II. 
D)  oxidized by Photosystem II.

Question 9

Glycolysis occurs in the _______ of a cell.

Accepted Answer

A)  nucleus 
B)  chloroplast 
C)  mitochondrion 
D)  cytosol 
A)  nucleus 
B)  chloroplast 
C)  mitochondrion 
D)  cytosol

Question 10

During photosynthesis, energized electrons flow

Accepted Answer

A)  from Photosystem I to Photosystem II. 
B)  from the reaction center to the antenna complex. 
C)  from Photosystem II to Photosystem I. 
D)  from the stroma to the intermembrane space. 
A)  from Photosystem I to Photosystem II. 
B)  from the reaction center to the antenna complex. 
C)  from Photosystem II to Photosystem I. 
D)  from the stroma to the intermembrane space.

Question 11

Energized electrons from the antenna complex are passed along to the ___________ center.

Accepted Answer

The answer of Energized electrons from the antenna complex are...

Question 12

During the process of photosynthesis, plants capture light energy and store it in the form of

Accepted Answer

A)  pyruvate. 
B)  stroma. 
C)  chemical bonds. 
D)  thylakoid disks. 
A)  pyruvate. 
B)  stroma. 
C)  chemical bonds. 
D)  thylakoid disks.

Question 13

The three stages of aerobic catabolism are

Accepted Answer

A)  photosynthesis, glycolysis, and oxidative phosphorylation. 
B)  glycolysis, the Krebs cycle, and oxidative phosphorylation. 
C)  glycolysis, fermentation, and the Krebs cycle. 
D)  photosynthesis, the Krebs cycle, and fermentation. 
A)  photosynthesis, glycolysis, and oxidative phosphorylation. 
B)  glycolysis, the Krebs cycle, and oxidative phosphorylation. 
C)  glycolysis, fermentation, and the Krebs cycle. 
D)  photosynthesis, the Krebs cycle, and fermentation.

Question 14

What is the importance of photosynthesis to organisms other than plants?

Accepted Answer

A)  All other organisms require oxygen for life processes. 
B)  The sugars made during photosynthesis are building blocks of DNA. 
C)  All cells must have chloroplasts in order to survive. 
D)  Photosynthesis captures energy that other organisms access when they eat plants or organisms that eat plants. 
A)  All other organisms require oxygen for life processes. 
B)  The sugars made during photosynthesis are building blocks of DNA. 
C)  All cells must have chloroplasts in order to survive. 
D)  Photosynthesis captures energy that other organisms access when they eat plants or organisms that eat plants.

Question 15

Fermentation produces more ATP molecules than aerobic respiration does.

Accepted Answer

A) True 
 B)False

Question 16

The chemical 3-(3,4-dichloro-phenyl)-1,1-dimethylurea (DCMU) blocks the movement of electrons at the point indicated by the arrow in the figure below.  
Which of the following would be an immediate effect of treating a chloroplast with this drug?

Accepted Answer

A)  Water molecules would be split at a faster rate than when the drug is not present. 
B)  The amount of NADPH produced by the light reactions would increase. 
C)  A proton gradient would not be created so ATP couldn't be made. 
D)  The Calvin cycle would not occur. 
A)  Water molecules would be split at a faster rate than when the drug is not present. 
B)  The amount of NADPH produced by the light reactions would increase. 
C)  A proton gradient would not be created so ATP couldn't be made. 
D)  The Calvin cycle would not occur.

Question 17

The growth of corn as a biofuel requires a great deal of fertilizer and gas-powered machinery. When processed, corn produces relatively low amounts of biodiesel. Is biodiesel made from corn carbon neutral?

Accepted Answer

A)  Yes. The amount of CO₂ that is produced by burning biodiesel from corn is equal to the amount of CO₂ fixed by corn during its growth. 
B)  No. The production of fertilizer and use of machinery probably produce more CO₂ than corn plants are able to fix during their growth. 
C)  Yes. Biodiesel from corn produces sulfur when it is burned, not CO₂. 
D)  No. Corn actually fixes more CO₂ as it is grown than biofuel made from corn releases when it is burned. 
A)  Yes. The amount of CO₂ that is produced by burning biodiesel from corn is equal to the amount of CO₂ fixed by corn during its growth. 
B)  No. The production of fertilizer and use of machinery probably produce more CO₂ than corn plants are able to fix during their growth. 
C)  Yes. Biodiesel from corn produces sulfur when it is burned, not CO₂. 
D)  No. Corn actually fixes more CO₂ as it is grown than biofuel made from corn releases when it is burned.

Question 18

Oxidative phosphorylation includes an electron transport chain.

Accepted Answer

A) True 
 B)False

Question 19

Only animal cells carry out oxidative phosphorylation.

Accepted Answer

A) True 
 B)False

Question 20

The pigments of plant cells capture primarily the wavelengths of light that are colored _____ and _____.

Accepted Answer

red-orange

Exam 8: Photosynthesis and Cellular Respiration

Which of the following statements describes the function of the electron transport chain (ETC) in photosynthesis?

The conversion of inorganic carbon from air into the carbon atoms found in all living organisms is known as carbon _______.

Since plants are able to capture energy from the sun, why do they need to pass that energy through the chemical reactions necessary to produce ATP?

The first stage of the breakdown of sugar molecules for energy is

The earliest atmosphere of Earth is not believed to have contained oxygen. Which cellular component would not have been useful at that time?

As an energy carrier, ATP differs from NADPH in that

The burning pain in your muscles during strenuous exercise is a result of

NADP++ is

Glycolysis occurs in the _______ of a cell.

During photosynthesis, energized electrons flow

Energized electrons from the antenna complex are passed along to the ___________ center.

During the process of photosynthesis, plants capture light energy and store it in the form of

The three stages of aerobic catabolism are

What is the importance of photosynthesis to organisms other than plants?

Fermentation produces more ATP molecules than aerobic respiration does.

The chemical 3-(3,4-dichloro-phenyl)-1,1-dimethylurea (DCMU) blocks the movement of electrons at the point indicated by the arrow in the figure below. Which of the following would be an immediate effect of treating a chloroplast with this drug?

The growth of corn as a biofuel requires a great deal of fertilizer and gas-powered machinery. When processed, corn produces relatively low amounts of biodiesel. Is biodiesel made from corn carbon neutral?

Oxidative phosphorylation includes an electron transport chain.

Only animal cells carry out oxidative phosphorylation.

The pigments of plant cells capture primarily the wavelengths of light that are colored _____ and _____.

The Nature of Science and the Characteristics of Life

Organizing the Diversity of Life

Major Groups of Living Organisms

Chemical Building Blocks

Cell Structure and Internal Compartments

Cell Membranes, Transport, and Communication

Energy and Enzymes

Cell Division

Patterns of Inheritance

Chromosomes and Human Genetics

DNA

From Gene to Protein

Control of Gene Expression

DNA Technology

How Evolution Works

Evolution of Populations

Adaptation and Speciation

The Evolutionary History of Life

Maintaining the Internal Environment

Animal Nutrition and Digestion

Gas Exchange

The Circulatory System

Animal Hormones

The Nervous System

Sensing the Environment

Skeletons, Muscles, and Movement

Defenses against Disease

Reproduction and Development

Animal Behavior

Plant Structure, Nutrition, and Transport

Plant Growth and Reproduction

The Biosphere

Growth of Populations

Interactions among Organisms

Communities of Organisms

Ecosystems

Global Change

Biodiversity and People

Cancer: Cell Division Out of Control

Harnessing the Human Genome

Humans and Evolution

Smoking--Beyond Lung Cancer

Feeding a Hungry Planet

Building a Sustainable Society

Filters

The pigments of plant cells capture primarily the wavelengths of light that are colored _ and _.