General Biology Bio 181 Exam Prep Guide Covering
Chapters 7, 8, 10 and 11 Review Questions and Correct
Answers / BIO 181 Exam Prep Test Bank Latest 2026
(Chapter 4-6 Correctly Answered Questions)
Contents
Bio 181 Chapter 7 (200 Questions)............................................................................................................... 1
Bio 181 Chapter 8 (150 Questions)............................................................................................................. 26
Bio 181 Chapter 10 (170 Questions)........................................................................................................... 45
Bio 181 Chapter 11 (100 Questions)........................................................................................................... 65
Bio 181 Chapter 7 (200 Questions)
The main product of cellular respiration is which of the following? - ANSWER-
ATP
Which of the following molecules in food can be used as energy sources by living
organisms? - ANSWER-fats
carbohydrates
proteins
Oxidation is defined as the loss of one or more o which of the following? -
ANSWER-Electrons
In several stages, cells extract energy from complex organic molecules mainly by
which process? - ANSWER-Harvesting energy from C—H bonds.
Cells utilize these types of reactions to take energy from food sources and convert
it to ATP. - ANSWER-Redox
pg. 1
,Dehydrogenations are reactions in which lost electrons are accompanied by which
of the following? - ANSWER-Protons
When an atom accepts an electron it is said to be which of the following? -
ANSWER-Reduced
When the final electron acceptor in anaerobic respiration is an organic molecule,
the process is termed - ANSWER-fermentation
Energy is extracted from food molecules using enzyme-catalyzed ______ reactions
that convert the energy to ATP. - ANSWER-redox
The final electron acceptor in aerobic respiration is which of the following? -
ANSWER-Oxygen
_________ and ________ are the reactants in the catabolism of carbohydrates. -
ANSWER-Glucose
Oxygen
Which of the following is a common feature of all electron carriers used during
cellular respiration? - ANSWER-They can be reversibly oxidized and reduced.
NAD+ is an electron carrier that also carries which of the following? - ANSWER-
Protons
The products of the catabolism of carbohydrates are carbon dioxide, _________ ,
and energy in the form of heat and _______________. - ANSWER-Water
ATP
pg. 2
,In energy metabolism, cells couple oxidation reactions with reduction reactions,
called ___________ reactions. - ANSWER-redox or oxidation-reduction
During the breakdown of glucose, why is it beneficial to release energy a little at a
time rather than all at once? - ANSWER-When energy is released a little at a time,
cells can recover more energy in a useful form.
Electrons that are removed from the C—H bonds of glucose during glycolysis and
the Krebs cycle are donated to - ANSWER-electron carriers.
Select all of the following that can be electron carriers. - ANSWER-Membrane-
bound carriers that form a redox chain
Soluble carriers
Carriers that move within the membrane
To receive credit for this question, you must fill the blanks with numbers (for
example, 3). When NAD+ is reduced, it accepts electron(s) and proton(s). -
ANSWER-two
one
How do cells oxidize their glucose? - ANSWER-A little at a time, so that more of
the useful energy can be used to produce ATP
Select the processes that are used by cells to strip electrons off of the C--H bonds
of a glucose molecule. - ANSWER-glycolysis
the citric acid cycle
pg. 3
, Select the groups of organisms that are autotrophs. - ANSWER-- algae
- plants
Unlike heterotrophs, many autotrophs can use energy from what source to
synthesize organic compounds? - ANSWER-Sunlight
Which of the following is the best description of the process of cellular respiration?
- ANSWER-A means to extract energy from organic molecules
True or false: Carbohydrates, fats, and proteins can be used as energy sources. -
ANSWER-true
Energy contained in the bonds of food molecules is harvested by enzymes that
______ a little bit at a time. - ANSWER-dismantle organic molecules
In terms of the source of their carbon, plants are Blank 1Blank 1 autotrophs ,
Correct Unavailable, and animals are Blank 2Blank 2 heterotrophs , Correct
Unavailable. - ANSWER-Blank 1: autotrophs, producers, or autotrophic
Blank 2: heterotrophs, consumers, or heterotrophic
The reactions of energy metabolism, in which energy is harvested from organic
molecules, are ______ reactions. - ANSWER-oxidation
True or false: Both autotrophs and heterotrophs extract energy from organic
compounds. - ANSWER-true
Which of the following best describes redox reactions? - ANSWER-Redox
reactions involve the loss and gain of electrons.
pg. 4
Chapters 7, 8, 10 and 11 Review Questions and Correct
Answers / BIO 181 Exam Prep Test Bank Latest 2026
(Chapter 4-6 Correctly Answered Questions)
Contents
Bio 181 Chapter 7 (200 Questions)............................................................................................................... 1
Bio 181 Chapter 8 (150 Questions)............................................................................................................. 26
Bio 181 Chapter 10 (170 Questions)........................................................................................................... 45
Bio 181 Chapter 11 (100 Questions)........................................................................................................... 65
Bio 181 Chapter 7 (200 Questions)
The main product of cellular respiration is which of the following? - ANSWER-
ATP
Which of the following molecules in food can be used as energy sources by living
organisms? - ANSWER-fats
carbohydrates
proteins
Oxidation is defined as the loss of one or more o which of the following? -
ANSWER-Electrons
In several stages, cells extract energy from complex organic molecules mainly by
which process? - ANSWER-Harvesting energy from C—H bonds.
Cells utilize these types of reactions to take energy from food sources and convert
it to ATP. - ANSWER-Redox
pg. 1
,Dehydrogenations are reactions in which lost electrons are accompanied by which
of the following? - ANSWER-Protons
When an atom accepts an electron it is said to be which of the following? -
ANSWER-Reduced
When the final electron acceptor in anaerobic respiration is an organic molecule,
the process is termed - ANSWER-fermentation
Energy is extracted from food molecules using enzyme-catalyzed ______ reactions
that convert the energy to ATP. - ANSWER-redox
The final electron acceptor in aerobic respiration is which of the following? -
ANSWER-Oxygen
_________ and ________ are the reactants in the catabolism of carbohydrates. -
ANSWER-Glucose
Oxygen
Which of the following is a common feature of all electron carriers used during
cellular respiration? - ANSWER-They can be reversibly oxidized and reduced.
NAD+ is an electron carrier that also carries which of the following? - ANSWER-
Protons
The products of the catabolism of carbohydrates are carbon dioxide, _________ ,
and energy in the form of heat and _______________. - ANSWER-Water
ATP
pg. 2
,In energy metabolism, cells couple oxidation reactions with reduction reactions,
called ___________ reactions. - ANSWER-redox or oxidation-reduction
During the breakdown of glucose, why is it beneficial to release energy a little at a
time rather than all at once? - ANSWER-When energy is released a little at a time,
cells can recover more energy in a useful form.
Electrons that are removed from the C—H bonds of glucose during glycolysis and
the Krebs cycle are donated to - ANSWER-electron carriers.
Select all of the following that can be electron carriers. - ANSWER-Membrane-
bound carriers that form a redox chain
Soluble carriers
Carriers that move within the membrane
To receive credit for this question, you must fill the blanks with numbers (for
example, 3). When NAD+ is reduced, it accepts electron(s) and proton(s). -
ANSWER-two
one
How do cells oxidize their glucose? - ANSWER-A little at a time, so that more of
the useful energy can be used to produce ATP
Select the processes that are used by cells to strip electrons off of the C--H bonds
of a glucose molecule. - ANSWER-glycolysis
the citric acid cycle
pg. 3
, Select the groups of organisms that are autotrophs. - ANSWER-- algae
- plants
Unlike heterotrophs, many autotrophs can use energy from what source to
synthesize organic compounds? - ANSWER-Sunlight
Which of the following is the best description of the process of cellular respiration?
- ANSWER-A means to extract energy from organic molecules
True or false: Carbohydrates, fats, and proteins can be used as energy sources. -
ANSWER-true
Energy contained in the bonds of food molecules is harvested by enzymes that
______ a little bit at a time. - ANSWER-dismantle organic molecules
In terms of the source of their carbon, plants are Blank 1Blank 1 autotrophs ,
Correct Unavailable, and animals are Blank 2Blank 2 heterotrophs , Correct
Unavailable. - ANSWER-Blank 1: autotrophs, producers, or autotrophic
Blank 2: heterotrophs, consumers, or heterotrophic
The reactions of energy metabolism, in which energy is harvested from organic
molecules, are ______ reactions. - ANSWER-oxidation
True or false: Both autotrophs and heterotrophs extract energy from organic
compounds. - ANSWER-true
Which of the following best describes redox reactions? - ANSWER-Redox
reactions involve the loss and gain of electrons.
pg. 4
