BIOL 111 FINAL TAMU – FLETCHER
LATEST 2023-2024 ACTUAL EXAM QUESTIONS
AND CORRECT ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+
The element present in all organic molecules is - CORRECT
ANSWER Carbon
Which of the following characteristics is most likely to be
associated with an enzyme that catalyzes two different chemical
reactions? - CORRECT ANSWER Either the enzyme has two
distinct active sites or the substrates involved in the two reactions
have very similar structures
ATP regulates glycolysis, citric acid cycle and oxidative
phosphorylation in cellular respiration through feedback control
(T/F?) - CORRECT ANSWER False
Where are the proteins of the electron transport chain located? -
CORRECT ANSWER mitochondrial inner membrane
The free energy for the oxidation of glucose to CO2 and water is -
686 kcal/mol, and the free energy for the reduction of NAD+ to
NADH is +53 kcal/mol. Why are only two molecules of NADH
formed during glycolysis when it appears that as many as a dozen
could be formed? - CORRECT ANSWER Most of the free
energy available from the oxidation of glucose remains in
pyruvate, one of the products of glycolysis
Early investigators thought the oxygen produced by
photosynthetic plants came from carbon dioxide. In fact, it comes
from _____. - CORRECT ANSWER Water
In the absence of oxygen, yeast cells can obtain energy by
fermentation, which results in the production of which of the
following sets of molecules? - CORRECT ANSWER ATP, CO2,
and ethanol (ethyl alcohol)
Approximately how many molecules of ATP are produced from
the complete oxidation of one molecule of glucose in aerobic
cellular respiration? - CORRECT ANSWER 34-38
Starting with one molecule of glucose, glycolysis results in the net
production of which of the following sets of energy-containing
products? - CORRECT ANSWER 2NADH, 2 pyruvate, and 2
ATP
What happens to the free energy released as electrons are
passed from photosystem II to photosystem I through a series of
electron carriers? - CORRECT ANSWER it is used to establish
and maintain a protein gradient
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