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2024/2025 IB 150 EXAM 1 WITH 100% ACCURATE SOLUTIONS
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2024/2025 IB 150 EXAM 1 WITH 100% ACCURATE SOLUTIONS
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2024/2025 IB 150 EXAM 1 WITH 100% ACCURATE SOLUTIONSThe following reaction
A --> B + C + heat
is a(n) _____ reaction. - Precise Answer ✔✔exergonic
A(n) _____ reaction occurs spontaneously. - Precise Answer
✔✔exergonic
Which of these reactions requires a net input of energy from its
surroundings? - Precise Answer ✔✔endergonic
In cells, what is usually the immediate source of energy for an
endergonic reaction? - Precise Answer ✔✔ATP
The reaction ADP + P --> ATP is a(n) _____ reaction. - Precise Answer
✔✔endergonic
The energy for an endergonic reaction comes from a(n) _____ reaction. -
Precise Answer ✔✔exergonic
What is the fate of the phosphate group that is removed when ATP is
converted to ADP? - Precise Answer ✔✔It is acquired by a reactant in
an endergonic reaction
,What is energy coupling? - Precise Answer ✔✔the use of energy
released from an exergonic reaction to drive an endergonic reaction
From the following compounds involved in cellular respiration, choose
those that are the net inputs and net outputs of glycolysis. - Precise
Answer ✔✔net input: ADP, NAD+, glucose
net output: ATP, NADH, pyruvate
not input or output: O2, coenzyme A, acetyl CoA, CO2
In acetyl CoA formation, the carbon-containing compound from
glycolysis is oxidized to produce acetyl CoA. From the following
compounds involved in cellular respiration, choose those that are the net
inputs and net outputs of acetyl CoA formation.
~~Basically pyruvate processing~~ - Precise Answer ✔✔net inputs:
NAD+, coenzyme A, pyruvate
net output: NADH, acetyl CoA, CO2
net input or output: O2, glucose, ATP, ADP
Citric Acid Cycle
In the citric acid cycle (also known as the Krebs cycle), acetyl CoA is
completely oxidized. From the following compounds involved in
cellular respiration, choose those that are the net inputs and net outputs
, of the citric acid cycle. - Precise Answer ✔✔net input: acetyl CoA,
NAD+, ADP
net output: coenzyme A, ATP, CO2, NADH
net input or output: O2, pyruvate, glucose
Oxidative Phosphorylation
In the last stage of cellular respiration, oxidative phosphorylation, all of
the reduced electron carriers produced in the previous stages are
oxidized by oxygen via the electron transport chain. The energy from
this oxidation is stored in a form that is used by most other energy-
requiring reactions in cells. - Precise Answer ✔✔net input: NADH,
ADP, O2
net output: NAD+, ATP, water
not input or output: acetyl CoA, coenzyme A, pyruvate, glucose, CO2
Each of the four stages of cellular respiration occurs in a specific
location inside or outside the mitochondria. These locations permit
precise regulation and partitioning of cellular resources to optimize the
utilization of cellular energy. - Precise Answer ✔✔Glycolysis is located
in the cytosol
Acetyl CoA formation is location in the mitochondrial matrix
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