BIO 101 EXAM 2 NVCC QUESTIONS WITH COMPLETE
SOLUTIONS GUARANTEED PASS BRAND NEW 2025
What is metabolism? - ANSWER - >the totality of an organism's
chemical reactions
What is a metabolic pathway? What is required in each step? -
ANSWER - >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? -
ANSWER - >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? -
ANSWER - >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? - ANSWER - >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? -
ANSWER - >
, How does an enzyme lowers the activation energy of the
substrate? - ANSWER - >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? - ANSWER -
>temperature
pH
substrate concentration
How competitive and non competitive inhibitors differ from
each other? - 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? - ANSWER - >toxins,
poisons, pesticides, and antibiotics
What is a feedback inhibition? - ANSWER - >the end product of
a metabolic pathway shuts down the pathway
What are the laws of thermodynamics? - 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? - ANSWER - >substrate,
active site
SOLUTIONS GUARANTEED PASS BRAND NEW 2025
What is metabolism? - ANSWER - >the totality of an organism's
chemical reactions
What is a metabolic pathway? What is required in each step? -
ANSWER - >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? -
ANSWER - >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? -
ANSWER - >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? - ANSWER - >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? -
ANSWER - >
, How does an enzyme lowers the activation energy of the
substrate? - ANSWER - >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? - ANSWER -
>temperature
pH
substrate concentration
How competitive and non competitive inhibitors differ from
each other? - 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? - ANSWER - >toxins,
poisons, pesticides, and antibiotics
What is a feedback inhibition? - ANSWER - >the end product of
a metabolic pathway shuts down the pathway
What are the laws of thermodynamics? - 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? - ANSWER - >substrate,
active site
