Bio 101 NVCC Exam 2 Questions and
Answers 100% Guaranteed Success
What is metabolism? - ✔✔the totality of an organism's chemical reactions
What is a metabolic pathway? What is required in each step? - ✔✔is a series of
chemical reactions which begins with a specific molecule and ends with a
product
Each step needs an enzyme
What is difference between anabolic and catabolic pathways? - ✔✔Catabolic
pathways-release energy by breaking down complex molecules into simpler
compounds
Anabolic pathways -consume energy to build complex molecules from simpler
ones
What is ATP molecule consists of? Why is it unstable? - ✔✔is composed of
ribose (a sugar), adenine (a nitrogenous base), and three phosphate groupsThe
triphosphate tail of ATP is the chemical equivalent of a compressed spring
What is a catalyst? - ✔✔is a chemical agent that speeds up a reaction without
being consumed by the reaction
What are the three things required for any reaction to occur? - ✔✔
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©KERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
, How does an enzyme lowers the activation energy of the substrate? -
✔✔Enzyme can speed up a reaction by lowering the EA barrier without itself
being consumed, also by right orientation of molecules.
Which factors affect enzyme activity? - ✔✔temperature
pH
substrate concentration
How competitive and non competitive inhibitors differ from each other? -
✔✔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? - ✔✔toxins, poisons, pesticides, and
antibiotics
What is a feedback inhibition? - ✔✔the end product of a metabolic pathway
shuts down the pathway
What are the laws of thermodynamics? - ✔✔the energy of the universe is
constant, Every energy transfer or transformation increases the entropy (heat)
of the universe,
2|Page
©KERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
Answers 100% Guaranteed Success
What is metabolism? - ✔✔the totality of an organism's chemical reactions
What is a metabolic pathway? What is required in each step? - ✔✔is a series of
chemical reactions which begins with a specific molecule and ends with a
product
Each step needs an enzyme
What is difference between anabolic and catabolic pathways? - ✔✔Catabolic
pathways-release energy by breaking down complex molecules into simpler
compounds
Anabolic pathways -consume energy to build complex molecules from simpler
ones
What is ATP molecule consists of? Why is it unstable? - ✔✔is composed of
ribose (a sugar), adenine (a nitrogenous base), and three phosphate groupsThe
triphosphate tail of ATP is the chemical equivalent of a compressed spring
What is a catalyst? - ✔✔is a chemical agent that speeds up a reaction without
being consumed by the reaction
What are the three things required for any reaction to occur? - ✔✔
1|Page
©KERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
, How does an enzyme lowers the activation energy of the substrate? -
✔✔Enzyme can speed up a reaction by lowering the EA barrier without itself
being consumed, also by right orientation of molecules.
Which factors affect enzyme activity? - ✔✔temperature
pH
substrate concentration
How competitive and non competitive inhibitors differ from each other? -
✔✔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? - ✔✔toxins, poisons, pesticides, and
antibiotics
What is a feedback inhibition? - ✔✔the end product of a metabolic pathway
shuts down the pathway
What are the laws of thermodynamics? - ✔✔the energy of the universe is
constant, Every energy transfer or transformation increases the entropy (heat)
of the universe,
2|Page
©KERRYMARTIN 2025/2026. YEAR PUBLISHED 2025.
