n general, enzymes are what kinds of molecules?

Question

lipids
nucleic acids
proteins
minerals
carbohydrates
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Part B
Enzymes work by _____.

adding energy to a reaction
increasing the potential energy difference between reactant and product
adding a phosphate group to a reactant
reducing EA
decreasing the potential energy difference between reactant and product
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Part C
An enzyme _____.

increases the EA of a reaction
can bind to nearly any molecule
is a source of energy for endergonic reactions
is an organic catalyst
is a inorganic catalyst
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Part D
What name is given to the reactants in an enzymatically catalyzed reaction?

products
substrate
reactors
EA
active sites
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Part E
As a result of its involvement in a reaction, an enzyme _____.

loses energy
is unchanged
loses a phosphate group
permanently alters its shape.
is used up
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Part F
What is the correct label for "A"?
A graph of the potential energy of reactants and products in a reaction. The energy of reactants is higher than the energy of products. There is a curve going up from the top of the reactants energy bar, then going down to the top of the product energy bar. The difference between the level of the energy for reactants and the maximum point on the curve is labeled A.

energy of activation
enzyme energy
uphill
substrate energy
ATP

Answer 1

Here are the answers to your questions:

Part A
Enzymes are what kinds of molecules?
Answer: proteins

Part B
Enzymes work by _____.
Answer: reducing EA (activation energy)

Part C
An enzyme _____.
Answer: is an organic catalyst

Part D
What name is given to the reactants in an enzymatically catalyzed reaction?
Answer: substrate

Part E
As a result of its involvement in a reaction, an enzyme _____.
Answer: is unchanged

Part F
What is the correct label for "A"?
Answer: energy of activation

If you have any more questions or need further clarification, feel free to ask!