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UCI BIO 93 MIDTERM 2 EXAM QUESTIONS AND VERIFIED ANSWERS UPDATED OFTEN
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UCI BIO 93 MIDTERM 2 EXAM QUESTIONS AND VERIFIED ANSWERS UPDATED OFTEN...
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A metabolic pathway: what is it? ANSWER A process a molecule follows toproduce a particular product.
What is metabolism? The entirety of a living thing's chemical ANSWERs
The portion of a system that can function when the temperature and pressure are
constant throughout is known as the Gibbs free energy.
How can one demonstrate a shift in free energy? ANSWER
What is meant by a negative Delta G? The answer is a spontaneous process.
What is meant by spontaneous? ANSWER: Indicates that a procedure will take
place.
How does the energy in an exergonic process change? ANSWER: It has been
released.
How does an endergonic reaction affect the energy involved? - ANSWER The
reaction consumes it.
Is it true or false?
Endergonic and exergonic reactions are essential for a cell to function.
ANSWER: True
Is the process of ATP hydrolysis endergonic or exergonic? - ANSWER
Exergonic
What types of reactions are involved in mechanical and transport work?
ANSWER: Endergonic
, Why is there such a large energy release during ATP hydrolysis? The three
phosphate groups all ate neg. charged, therefore they are all repulsed by one
another.
What is the function of enzymes? ANSWER: Chemical reactions are fueled by
lower energy barriers.
What is often meant by the suffix -ase? - A ANSWER An enzyme
What is the appearance of an exergonic energy profile? ANSWER
The biological ___________-ANSWER Catalysts are enzymes.
Where does cellular respiration take place in every eukaryotic cell? In
ANSWER, mitochondria
What is another term used in biology to describe the addition of electrons to a
material? ANSWER Reduction
What is another term used in biology to describe a material losing electrons?
ANSWER: Oxidation
Cellular respiration: what is it? ANSWER ATP is produced by catabolic
processes.
Glycolysis occurs where? In the cytosol, the ANSWER
Describe glycolysis. The breakdown of glucose into two molecules of pyruvate
is the answer.
How does the citric acid cycle work? ANSWER Glucose has finished breaking
down into carbon dioxide.
What is the first stage of respiration in cells? ANSWER: Glycolysis
What is cellular respiration stage two? ANSWER The citric acid cycle and
pyruvate oxidation
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