BIO 101 EXAM 2 NVCC EXAM 2 PRACTICE
QUESTIONS WITH VERIFIED SOLUTIONS NEW
MODIFIED TESTED AND APPROVED 2026 LATEST
Which factors affect enzyme activity? --CORRECT ANSWER--
temperature
pH
substrate concentration
How competitive and non competitive inhibitors differ from each
other? --CORRECT ANSWER--Competitive inhibitors bind to the
active site of an enzyme, competing with the substrate
Noncompetitive inhibitors bind to another part of an enzyme, causing
the enzyme to change shape and making the active site less effective
What are the examples of inhibitors? --CORRECT ANSWER--toxins,
poisons, pesticides, and antibiotics
What is a feedback inhibition? --CORRECT ANSWER--the end
product of a metabolic pathway shuts down the pathway
Page 1 of 12
, What are the laws of thermodynamics? --CORRECT ANSWER--the
energy of the universe is constant, Every energy transfer or
transformation increases the entropy (heat) of the universe,
What are the parts of an enzyme? --CORRECT ANSWER--substrate,
active site
What is the difference between oxidation and reduction? --CORRECT
ANSWER--In oxidation, a substance loses electrons, or is oxidized
In reduction, a substance gains electrons, or is reduced (the amount of
positive charge is reduced)
What is the ultimate source of energy? --CORRECT ANSWER--sun
What is phosphorylation? What are the three ways to make ATP? --
CORRECT ANSWER--Light energy is converted to ATP when the
electrons (oxidation) from chlorophyll pass through a system of
carrier molecules
Glycolysis, Citric Acid Cycle, Oxidative phosphorylation
What is metabolism? --CORRECT ANSWER--the totality of an
organism's chemical reactions
Page 2 of 12
QUESTIONS WITH VERIFIED SOLUTIONS NEW
MODIFIED TESTED AND APPROVED 2026 LATEST
Which factors affect enzyme activity? --CORRECT ANSWER--
temperature
pH
substrate concentration
How competitive and non competitive inhibitors differ from each
other? --CORRECT ANSWER--Competitive inhibitors bind to the
active site of an enzyme, competing with the substrate
Noncompetitive inhibitors bind to another part of an enzyme, causing
the enzyme to change shape and making the active site less effective
What are the examples of inhibitors? --CORRECT ANSWER--toxins,
poisons, pesticides, and antibiotics
What is a feedback inhibition? --CORRECT ANSWER--the end
product of a metabolic pathway shuts down the pathway
Page 1 of 12
, What are the laws of thermodynamics? --CORRECT ANSWER--the
energy of the universe is constant, Every energy transfer or
transformation increases the entropy (heat) of the universe,
What are the parts of an enzyme? --CORRECT ANSWER--substrate,
active site
What is the difference between oxidation and reduction? --CORRECT
ANSWER--In oxidation, a substance loses electrons, or is oxidized
In reduction, a substance gains electrons, or is reduced (the amount of
positive charge is reduced)
What is the ultimate source of energy? --CORRECT ANSWER--sun
What is phosphorylation? What are the three ways to make ATP? --
CORRECT ANSWER--Light energy is converted to ATP when the
electrons (oxidation) from chlorophyll pass through a system of
carrier molecules
Glycolysis, Citric Acid Cycle, Oxidative phosphorylation
What is metabolism? --CORRECT ANSWER--the totality of an
organism's chemical reactions
Page 2 of 12
