Question 1

Pigment molecules are most like

Accepted Answer

A)  microwave ovens. 
B)  antennas. 
C)  microphones. 
D)  a computer mouse. 
E)  dvds. 
A)  microwave ovens. 
B)  antennas. 
C)  microphones. 
D)  a computer mouse. 
E)  dvds.

Question 2

Ultimately, into what molecule are the electrons released from glucose in aerobic respiration incorporated?

Accepted Answer

A)  carbon dioxide 
B)  ATP 
C)  oxygen gas 
D)  water 
E)  NADH 
A)  carbon dioxide 
B)  ATP 
C)  oxygen gas 
D)  water 
E)  NADH

Question 3

Hydrogen ion flow out of the thylakoid compartments

Accepted Answer

A)  occurs between photosystems I and II. 
B)  is called hydrogen transfer system. 
C)  provides energy to produce ATP molecules. 
D)  causes excitation of chlorophyll molecules. 
E)  requires the intermediary action of acceptor molecules. 
A)  occurs between photosystems I and II. 
B)  is called hydrogen transfer system. 
C)  provides energy to produce ATP molecules. 
D)  causes excitation of chlorophyll molecules. 
E)  requires the intermediary action of acceptor molecules.

Question 4

What was the likely fate of the first life on earth?

Accepted Answer

A)  destroyed by a meteorite 
B)  outcompeted by multi-celled organisms 
C)  consumed by dinosaurs 
D)  poisoned by oxygen gas 
E)  starvation 
A)  destroyed by a meteorite 
B)  outcompeted by multi-celled organisms 
C)  consumed by dinosaurs 
D)  poisoned by oxygen gas 
E)  starvation

Question 5

How many carbon dioxide molecules does it take to synthesize one molecule of glucose?

Accepted Answer

A)  2 
B)  4 
C)  6 
D)  12 
E)  18 
A)  2 
B)  4 
C)  6 
D)  12 
E)  18

Question 6

Which of the following generates the most energy in the form of ATP?

Accepted Answer

A)  aerobic respiration 
B)  photosynthesis 
C)  alcoholic fermentation 
D)  lactate fermentation 
E)  all generate the same amount, but through different means 
A)  aerobic respiration 
B)  photosynthesis 
C)  alcoholic fermentation 
D)  lactate fermentation 
E)  all generate the same amount, but through different means

Question 7

The distance between the crests of two successive waves of light is called

Accepted Answer

A)  wave frequency. 
B)  wave period. 
C)  wave distance. 
D)  wavelength. 
E)  wave space. 
A)  wave frequency. 
B)  wave period. 
C)  wave distance. 
D)  wavelength. 
E)  wave space.

Question 8

The alcohol in beer and wine is from fermentation by

Accepted Answer

A)  bacteria. 
B)  yeast. 
C)  hops flowers. 
D)  sugar. 
E)  protistans. 
A)  bacteria. 
B)  yeast. 
C)  hops flowers. 
D)  sugar. 
E)  protistans.

Question 9

Which of the following statements is CORRECT about C4 plants?

Accepted Answer

A)  In C4 plants, fixation of carbon dioxide and the light-independent reactions occur in two different types of cells. 
B)  C4 plants are so called because a 4-carbon molecule is the first stable intermediate that forms in the light-independent reactions. 
C)  In C4 plants, carbon dioxide is fixed by an enzyme that does not use oxygen even at high oxygen levels. 
D)  C4 plants are adapted to produce glucose even when stomata are closed. 
E)  C4 plants do not use rubisco or the Calvin-Benson cycle. 
A)  In C4 plants, fixation of carbon dioxide and the light-independent reactions occur in two different types of cells. 
B)  C4 plants are so called because a 4-carbon molecule is the first stable intermediate that forms in the light-independent reactions. 
C)  In C4 plants, carbon dioxide is fixed by an enzyme that does not use oxygen even at high oxygen levels. 
D)  C4 plants are adapted to produce glucose even when stomata are closed. 
E)  C4 plants do not use rubisco or the Calvin-Benson cycle.

Question 10

Plant cells produce oxygen gas

Accepted Answer

A)  by splitting carbon dioxide. 
B)  during respiration. 
C)  by splitting ribulose bisphosphates. 
D)  by splitting molecules of water. 
E)  by breaking down glucose. 
A)  by splitting carbon dioxide. 
B)  during respiration. 
C)  by splitting ribulose bisphosphates. 
D)  by splitting molecules of water. 
E)  by breaking down glucose.

Question 11

At the end of the electron transfer chain, the final electron acceptor is

Accepted Answer

A)  ATP. 
B)  oxygen. 
C)  NADP+. 
D)  water. 
E)  NADPH. 
A)  ATP. 
B)  oxygen. 
C)  NADP+. 
D)  water. 
E)  NADPH.

Question 12

What is the energy generated in the first electron transfer chain in the light-dependent reactions of photosynthesis used to do?

Accepted Answer

A)  split water into oxygen, hydrogen ions, and electrons 
B)  generate NADPH 
C)  power the ATP synthase enzyme to produce ATP 
D)  pump hydrogen ions into the thylakoid compartment 
E)  generate glucose 
A)  split water into oxygen, hydrogen ions, and electrons 
B)  generate NADPH 
C)  power the ATP synthase enzyme to produce ATP 
D)  pump hydrogen ions into the thylakoid compartment 
E)  generate glucose

Question 13

The bubbles in beer are

Accepted Answer

A)  carbon dioxide. 
B)  oxygen. 
C)  ethanol. 
D)  pyruvate. 
E)  nitrous oxide. 
A)  carbon dioxide. 
B)  oxygen. 
C)  ethanol. 
D)  pyruvate. 
E)  nitrous oxide.

Question 14

ATP is formed when ____ the thylakoid compartment.

Accepted Answer

A)  hydrogen ions enter 
B)  hydrogen ions leave 
C)  electrons leave 
D)  electrons enter 
E)  water is split in 
A)  hydrogen ions enter 
B)  hydrogen ions leave 
C)  electrons leave 
D)  electrons enter 
E)  water is split in

Question 15

When light excites chlorophyll, the chlorophyll molecules

Accepted Answer

A)  change to carotene. 
B)  become agitated and move rapidly. 
C)  become radioactive. 
D)  electrons jump to a higher energy level. 
E)  become ionized. 
A)  change to carotene. 
B)  become agitated and move rapidly. 
C)  become radioactive. 
D)  electrons jump to a higher energy level. 
E)  become ionized.

Question 16

What happens to anaerobic organisms when they are exposed to oxygen?

Accepted Answer

A)  they become anaerobic 
B)  they die 
C)  they increase their metabolic rate 
D)  they start rapidly reproducing 
E)  nothing happens to them 
A)  they become anaerobic 
B)  they die 
C)  they increase their metabolic rate 
D)  they start rapidly reproducing 
E)  nothing happens to them

Question 17

In addition to aerobic respiration, which of the following metabolic pathways include electron transfer phosphorylation?

Accepted Answer

A)  the light-dependent reactions of photosynthesis 
B)  the light-independent reactions of photosynthesis 
C)  alcoholic fermentation 
D)  lactate fermentation 
E)  more than one of these 
A)  the light-dependent reactions of photosynthesis 
B)  the light-independent reactions of photosynthesis 
C)  alcoholic fermentation 
D)  lactate fermentation 
E)  more than one of these

Question 18

Selecting the Exception Four of the five chemicals listed below are related to the light-independent reactions. Select the EXCEPTION.

Accepted Answer

A)  oxygen 
B)  carbon dioxide 
C)  RuBP 
D)  rubisco 
E)  glucose 
A)  oxygen 
B)  carbon dioxide 
C)  RuBP 
D)  rubisco 
E)  glucose

Question 19

Deep in the ocean where there is no light, some bacteria can use the energy of chemicals to make carbohydrates. Animals, such as tube worms, derive their carbohydrates from consuming those chemosynthetic bacteria. Given these facts, a tube worm would be considered to be a(n) ____, whereas the bacteria would be a(n) ____.

Accepted Answer

A)  producer; consumer 
B)  autotroph; heterotroph 
C)  prokaryote; eukaryote 
D)  heterotroph; autotroph 
E)  decomposer; producer 
A)  producer; consumer 
B)  autotroph; heterotroph 
C)  prokaryote; eukaryote 
D)  heterotroph; autotroph 
E)  decomposer; producer

Question 20

Which of the following metabolic pathways uses ATP and NADPH that formed in the light-dependent reactions of photosynthesis?

Accepted Answer

A)  the Calvin-Benson cycle 
B)  the Krebs cycle 
C)  glycolysis 
D)  aerobic respiration 
E)  the light-dependent reactions 
A)  the Calvin-Benson cycle 
B)  the Krebs cycle 
C)  glycolysis 
D)  aerobic respiration 
E)  the light-dependent reactions

Exam 5: Capturing and Releasing Energy

Pigment molecules are most like

Ultimately, into what molecule are the electrons released from glucose in aerobic respiration incorporated?

Hydrogen ion flow out of the thylakoid compartments

What was the likely fate of the first life on earth?

How many carbon dioxide molecules does it take to synthesize one molecule of glucose?

Which of the following generates the most energy in the form of ATP?

The distance between the crests of two successive waves of light is called

The alcohol in beer and wine is from fermentation by

Which of the following statements is CORRECT about C4 plants?

Plant cells produce oxygen gas

At the end of the electron transfer chain, the final electron acceptor is

What is the energy generated in the first electron transfer chain in the light-dependent reactions of photosynthesis used to do?

The bubbles in beer are

ATP is formed when ____ the thylakoid compartment.

When light excites chlorophyll, the chlorophyll molecules

What happens to anaerobic organisms when they are exposed to oxygen?

In addition to aerobic respiration, which of the following metabolic pathways include electron transfer phosphorylation?

Selecting the Exception Four of the five chemicals listed below are related to the light-independent reactions. Select the EXCEPTION.

Which of the following metabolic pathways uses ATP and NADPH that formed in the light-dependent reactions of photosynthesis?

Invitation to Biology

Molecules of Life

Cell Structure

Energy and Metabolism

Dna Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Early Life Forms and the Viruses

Plants and Fungi

Animal Evolution

Population Ecology

Communities and Ecosystems

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Reproduction and Development

Plant Form and Function

Plant Reproduction and Development

Filters

Which of the following statements is CORRECT about C₄ plants?