The exchange of a phosphate group between creatine phosphate and adenosine diphosphate is categorized as a catabolic (rather than anabolic) reaction.
Indicate whether this statement is true or false.
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Question 2) Which one of the following choices includes three descriptions that are consistent with each other (that is, that describe the same type of chemical reaction)?
A. Anabolic, dehydration, endergonic
B. Exchange, hydrolysis, endergonic
C. Catabolic, dehydration, irreversible
D. Metabolic, synthesis, exergonic
E. Anabolic, catabolic, dehydration
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Question 3) When the body's digestive system breaks down starch, a complex carbohydrate, into simpler carbohydrates, the reaction is
A. anabolic and endergonic.
B. anabolic and exergonic.
C. catabolic and exergonic.
D. catabolic and endergonic.
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Question 4) The building of complex molecules from simpler ones is described as
A. anabolism.
B. catabolism.
C. exergonic.
D. irreversible.
E. reversible.
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Question 5) The reaction in which water and carbon dioxide combine to form carbonic acid is
A. irreversible, as carbonic acid rapidly causes a drop in pH.
B. reversible, and can proceed in either direction depending on the concentrations of the molecules.
C. exergonic, and is an important energy source within the body.
D. an exchange reaction in which protons are transferred between atoms.
E. a catabolic reaction in which the formation of a larger molecule can lead to an increase in cell size.
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Question 6) Typically, synthesis reactions are endergonic.
Indicate whether this statement is true or false.
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Question 7) Chemical reactions that release energy are called __________ reactions.
Fill in the blank with correct word.
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Question 8) When our inner ears convert sound energy into neural impulses or our retinas convert light into neural impulses,
A. no heat is generated, and so it is an exception to the first law of thermodynamics.
B. it is an exception to both laws of thermodynamics, because no usable energy is lost.
C. it is consistent with the second law of thermodynamics, but an exception to the first.
D. the conversion is consistent with both laws of thermodynamics.
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Question 9) When a car burns gasoline, the majority of the gasoline's chemical energy is transformed to sound and heat.
Indicate whether this statement is true or false.
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Question 10) When we shiver on a cold day, the heat produced by muscle tissue is a demonstration of
A. radiant potential energy.
B. the first law of thermodynamics.
C. the second law of thermodynamics.
D. the creation of energy.
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