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Biology 101 Exam 3 Questions And Answers 100% Correct!!!
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Biology 101 Exam 3 Questions And Answers 100% Correct!!!
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Biology 101 Exam 3 Questions AndAnswers 100% Correct!!!
A rock on the top of a mountain contains____energy.
A. potential
B. no
C. kinetic
D. chemical - ANSWER✔✔ A. potential
When chemical, transport, or mechanical work is done by an organism, what
happens to the heat generated?
A. it is used to power yet more cellular work.
B. it is used to store energy as more ATP.
C. it is used to generate ADP from nucleotide precursors
D. it is lost in the environment - ANSWER✔✔ D. it is lost in the environment
Hydrolysis reactions are_______because they release energy.
A. impossible
B. very slow
C. exergonic
D. endergonic - ANSWER✔✔ C. exergonic
The region of an enzyme to which a substrate binds is called the_______site.
A. substrate
B. active
C. enzymatic
, D. conformational - ANSWER✔✔ B. active
________pathways require energy and are important for cell maintenance, growth
and repair.
A. anabolic
B. catabolic
C. hydrolysis
D. all - ANSWER✔✔ A. anabolic
Enzymes speed up a chemical reaction by:
A. increasing the free energy
B. increasing the activation energy and the energy of the product
C. lowering the activation energy.
D. increasing the concentration of available substrate. - ANSWER✔✔ C. lowering
the activation energy
Humans require vitamins in their diets because these nutrients
A. provide energy
B. are broken down by catabolic reactions
C. bond with minerals
D. act as coenzymes - ANSWER✔✔ D. act as coenzymes
The mechanism in which the end product of a metabolic pathway inhibits an earlier
step in the pathway is most precisely described as______.
A. noncooperative inhibition
B. metabolic inhibition
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