Quiz of Lectures 21&22

Question 1

An enzyme

Answer 1

binds substrates in a manner that facilitates the formation of product

Question 2

What is the mechanism of substrate activation?

Answer 2

bond distortion

Question 3

What is an enzyme? (how do you know by the name)

Answer 3

ends with -ase

Question 4

The active site for many enzymes involves what

Answer 4

amino acids that are brought into close proximity by extensive protein folding

Question 5

An enzyme is active in the stomach of an animal but quickly loses its activity when it leaves the stomach, this illustrates that enzymes are

Answer 5

sensitive to changes in the pH

Question 6

An enzyme reduces the free energy in which of the following?
substrate (S)
product (P)
transition state (ES)
enzyme (E)

Answer 6

transition state (ES)

Question 7

The type of inhibitor that binds to the enzyme active site is an what type of activator

Answer 7

competitive

Question 8

An anabolic reaction usually

Answer 8

requires energy

Question 9

Oxidation reactions in biological systems generally involve

Answer 9

loss of electros and hydrogen ions

Question 10

The complete biological oxidation of glucose releases how much energy

Answer 10

686 kcal/mol