1|Page
UCI BIO 93 MIDTERM 2 EXAM 2025| BRAND NEW
ACTUAL EXAM WITH 100% VERIFIED QUESTIONS
AND CORRECT SOLUTIONS| GUARANTEED VALUE
PACK| ACE YOUR GRADES.
What is a metabolic pathway? - (answers)A pathway that a molecule goes
through, resulting in a specific product.
What is metabolism? - (answers)The totality of an organisms chemical reactions
Gibbs free energy - (answers)Portion of a system that can perform work when
temp and pressure are uniform throughout the system.
What does a negative Delta G mean? - (answers)A process that is
spontaneous/exergonic
What does spontaneous mean? - (answers)Means that a process will occur.
What happens to the energy in a exergonic reaction? - (answers)It is released
What happens to the energy in an endergonic reaction? - (answers)It is consumed
in the reaction.
True or False
,2|Page
A cell must have endergonic and exergonic reactions - (answers)True
Is ATP Hydrolysis an exergonic or endergonic reaction? - (answers)Exergonic
Mechanical and Transport work are what kind of reactions? -
(answers)Endergonic
Why does ATP hydrolysis release so much energy? - (answers)All 3 phosphate
groups are neg. charged, so there is mutual repulsion within all of them
What do enzymes do? - (answers)Lower energy barriers to drive chemical
reactions
What does the suffix -ase usually mean? - (answers)An enzyme
Enzymes are biological ___________ - (answers)Catalysts
What is the site of cellular respiration in all eukaryotic cells? -
(answers)Mitochondria
In Biology, what is another word for the addition of electrons to a substance? -
(answers)Reduction
, 3|Page
In Biology, what is another word for the loss of electrons to a substance? -
(answers)Oxidation
What is cellular respiration? - (answers)Catabolic reactions used to generate ATP
Where does glycolysis happen? - (answers)In the cytosol
What is glycolysis? - (answers)The breaking down of glucose into 2 molecules of
pyruvate.
What happens in the citric acid cycle? - (answers)The breakdown of glucose to
carbon dioxide is completed.
What is stage 1 of cellular respiration? - (answers)Glycolysis
What is stage 2 of cellular respiration? - (answers)Pyruvate oxidation and citric
acid cycle
What is stage 3 of cellular respiration? - (answers)Oxidative Phosphorylation
What is the purpose of NADH? - (answers)Transfers electrons from food to
electron transport chain.
UCI BIO 93 MIDTERM 2 EXAM 2025| BRAND NEW
ACTUAL EXAM WITH 100% VERIFIED QUESTIONS
AND CORRECT SOLUTIONS| GUARANTEED VALUE
PACK| ACE YOUR GRADES.
What is a metabolic pathway? - (answers)A pathway that a molecule goes
through, resulting in a specific product.
What is metabolism? - (answers)The totality of an organisms chemical reactions
Gibbs free energy - (answers)Portion of a system that can perform work when
temp and pressure are uniform throughout the system.
What does a negative Delta G mean? - (answers)A process that is
spontaneous/exergonic
What does spontaneous mean? - (answers)Means that a process will occur.
What happens to the energy in a exergonic reaction? - (answers)It is released
What happens to the energy in an endergonic reaction? - (answers)It is consumed
in the reaction.
True or False
,2|Page
A cell must have endergonic and exergonic reactions - (answers)True
Is ATP Hydrolysis an exergonic or endergonic reaction? - (answers)Exergonic
Mechanical and Transport work are what kind of reactions? -
(answers)Endergonic
Why does ATP hydrolysis release so much energy? - (answers)All 3 phosphate
groups are neg. charged, so there is mutual repulsion within all of them
What do enzymes do? - (answers)Lower energy barriers to drive chemical
reactions
What does the suffix -ase usually mean? - (answers)An enzyme
Enzymes are biological ___________ - (answers)Catalysts
What is the site of cellular respiration in all eukaryotic cells? -
(answers)Mitochondria
In Biology, what is another word for the addition of electrons to a substance? -
(answers)Reduction
, 3|Page
In Biology, what is another word for the loss of electrons to a substance? -
(answers)Oxidation
What is cellular respiration? - (answers)Catabolic reactions used to generate ATP
Where does glycolysis happen? - (answers)In the cytosol
What is glycolysis? - (answers)The breaking down of glucose into 2 molecules of
pyruvate.
What happens in the citric acid cycle? - (answers)The breakdown of glucose to
carbon dioxide is completed.
What is stage 1 of cellular respiration? - (answers)Glycolysis
What is stage 2 of cellular respiration? - (answers)Pyruvate oxidation and citric
acid cycle
What is stage 3 of cellular respiration? - (answers)Oxidative Phosphorylation
What is the purpose of NADH? - (answers)Transfers electrons from food to
electron transport chain.
