Question 1

Thbreakdown of pyruvatin thKrebs cyclresults in threleasof

Accepted Answer

A) energy. 
B) carbon dioxide. 
C) oxygen. 
D) hydrogen ions. 
E) energy, carbon dioxide, and hydrogen ions. 
A) energy. 
B) carbon dioxide. 
C) oxygen. 
D) hydrogen ions. 
E) energy, carbon dioxide, and hydrogen ions.

Question 2

ATP is formewhen __________ ththylakoicompartment.

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 3

For six molecules of carbon dioxidfixein thlight-independent reaction, how many molecules of PGA arproduced?

Accepted Answer

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

Question 4

Pigment molecules arcomparablto

Accepted Answer

A) space ships. 
B) satellites. 
C) antennas. 
D) boats. 
E) cars. 
A) space ships. 
B) satellites. 
C) antennas. 
D) boats. 
E) cars.

Question 5

Which of thfollowing sources of energy powers thseconstagof photosynthesis?

Accepted Answer

A) light 
B) ATP 
C) NADPH 
D) glucose 
E) electromagnetic 
A) light 
B) ATP 
C) NADPH 
D) glucose 
E) electromagnetic

Question 6

Thgreatest number of ATP molecules is producein

Accepted Answer

A) glycolysis. 
B) alcoholic fermentation. 
C) anaerobic electron transfer. 
D) electron transfer phosphorylation. 
E) the Krebs cycle. 
A) glycolysis. 
B) alcoholic fermentation. 
C) anaerobic electron transfer. 
D) electron transfer phosphorylation. 
E) the Krebs cycle.

Question 7

Wherarthlight-independent reactions occurring?

Accepted Answer

A) in the cytoplasm 
B) in the chloroplastic outer membrane 
C) in the thylakoid membrane 
D) in the stroma 
E) in the matrix 
A) in the cytoplasm 
B) in the chloroplastic outer membrane 
C) in the thylakoid membrane 
D) in the stroma 
E) in the matrix

Question 8

Thmain sourcof energy in thhuman diet is

Accepted Answer

A) fats. 
B) carbohydrates. 
C) proteins. 
D) nucleotides. 
E) steroids. 
A) fats. 
B) carbohydrates. 
C) proteins. 
D) nucleotides. 
E) steroids.

Question 9

Chlorophyll a molecules absorb __________ lights.

Accepted Answer

A) green and yellow 
B) purple and red 
C) red and yellow 
D) orange and blue 
E) purple, orange, and yellow 
A) green and yellow 
B) purple and red 
C) red and yellow 
D) orange and blue 
E) purple, orange, and yellow

Question 10

All living organisms

Accepted Answer

A) generate ATP. 
B) utilize oxygen. 
C) have a well-defined nucleus. 
D) produce carbon dioxide. 
E) generate ATP and produce carbon dioxide. 
A) generate ATP. 
B) utilize oxygen. 
C) have a well-defined nucleus. 
D) produce carbon dioxide. 
E) generate ATP and produce carbon dioxide.

Question 11

Thusof two ATP molecules at thbeginning of glycolysis is comparablto __________ in financial language.

Accepted Answer

A) dividends 
B) a credit 
C) a debt 
D) an investment 
E) liquidity 
A) dividends 
B) a credit 
C) a debt 
D) an investment 
E) liquidity

Question 12

Thgeneration of hydrogen ion concentration gradients across thmembranes of mitochondria produces ATP by means of

Accepted Answer

A) glycolytic pathways. 
B) hydrogen pumps. 
C) phosphate pumps. 
D) ATP synthases. 
E) none of these. 
A) glycolytic pathways. 
B) hydrogen pumps. 
C) phosphate pumps. 
D) ATP synthases. 
E) none of these.

Question 13

Under anaerobic conditions, musclcells produce

Accepted Answer

A) ethyl alcohol. 
B) acetaldehyde. 
C) pyruvate. 
D) lactate. 
E) citrate. 
A) ethyl alcohol. 
B) acetaldehyde. 
C) pyruvate. 
D) lactate. 
E) citrate.

Question 14

Which of thfollowing molecules servas inputs for thlight-independent reactions?

Accepted Answer

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

Question 15

Energy containein organic molecules is a forof

Accepted Answer

A) kinetic energy. 
B) activation energy. 
C) potential energy. 
D) cosmic energy. 
E) any of these. 
A) kinetic energy. 
B) activation energy. 
C) potential energy. 
D) cosmic energy. 
E) any of these.

Question 16

Hydrogen ion flow out of ththylakoicompartments

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 17

Which of thfollowing statements relateto photosynthesis is INCORRECT?

Accepted Answer

A) The first stage occurs in thylakoid membranes.It is a series of reactions that are light-dependent. 
B) The second stage takes place in the stroma.It is a series of reactions that are light-independent. 
C) During the light-dependent reactions, ATP and NADPH are produced. 
D) ATP and NADPH generated during light-dependent reactions are used during light-independent reactions. 
E) During the light-dependent stage, carbon dioxide is combined with atoms of hydrogen to form molecules of glucose. 
A) The first stage occurs in thylakoid membranes.It is a series of reactions that are light-dependent. 
B) The second stage takes place in the stroma.It is a series of reactions that are light-independent. 
C) During the light-dependent reactions, ATP and NADPH are produced. 
D) ATP and NADPH generated during light-dependent reactions are used during light-independent reactions. 
E) During the light-dependent stage, carbon dioxide is combined with atoms of hydrogen to form molecules of glucose.

Question 18

Substrate-level phosphorylation

Accepted Answer

A) occurs during glycolysis. 
B) requires the presence of oxygen. 
C) is a precursor for the phosphorylation of glucose. 
D) is the source for the majority of ATP produced in aerobic respiration. 
E) does not occur during fermentation. 
A) occurs during glycolysis. 
B) requires the presence of oxygen. 
C) is a precursor for the phosphorylation of glucose. 
D) is the source for the majority of ATP produced in aerobic respiration. 
E) does not occur during fermentation.

Question 19

Aerobes us__________ as thfinal electron acceptor at thenof an electron transport chain.

Accepted Answer

A) hydrogen 
B) carbon 
C) oxygen 
D) H2O 
E) NAD+ 
A) hydrogen 
B) carbon 
C) oxygen 
D) H2O 
E) NAD+

Question 20

Glycolysis takes placin

Accepted Answer

A) the cytoplasm. 
B) mitochondria. 
C) chloroplasts. 
D) thylakoids. 
E) peroxisomes. 
A) the cytoplasm. 
B) mitochondria. 
C) chloroplasts. 
D) thylakoids. 
E) peroxisomes.

Exam 5: Capturing and Releasing Energy

Thbreakdown of pyruvatin thKrebs cyclresults in threleasof

ATP is formewhen __________ ththylakoicompartment.

For six molecules of carbon dioxidfixein thlight-independent reaction, how many molecules of PGA arproduced?

Pigment molecules arcomparablto

Which of thfollowing sources of energy powers thseconstagof photosynthesis?

Thgreatest number of ATP molecules is producein

Wherarthlight-independent reactions occurring?

Thmain sourcof energy in thhuman diet is

Chlorophyll a molecules absorb __________ lights.

All living organisms

Thusof two ATP molecules at thbeginning of glycolysis is comparablto __________ in financial language.

Thgeneration of hydrogen ion concentration gradients across thmembranes of mitochondria produces ATP by means of

Under anaerobic conditions, musclcells produce

Which of thfollowing molecules servas inputs for thlight-independent reactions?

Energy containein organic molecules is a forof

Hydrogen ion flow out of ththylakoicompartments

Which of thfollowing statements relateto photosynthesis is INCORRECT?

Substrate-level phosphorylation

Aerobes us__________ as thfinal electron acceptor at thenof an electron transport chain.

Glycolysis takes placin

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

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Early Life Forms and the Viruses

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