
Chapter 4 - Enzymes
Authored by Aiden YX
Biology
University
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which process involves the synthesis of complex molecules from simpler molecules and it requires energy input?
Anabolism.
Catabolism.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which is not true about enzyme?
It is a biological catalyst.
It is a globular protein.
It remains unchanged at the end of reaction.
It increases the activation energy of reaction.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
__________ energy is the minimum energy required for reactants to reach the transition state before changing into the product.
Activation
Anabolic
Endergonic
Exergonic
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Lock-and-key hypothesis was proposed by _______________.
Emil Fischer.
Daniel Koshland.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In lock-and-key hypothesis, __________ is the "lock" while __________ is the "key".
enzyme, active site
active site, enzyme
active site, substrate
substrate, active site
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
_______________ hypothesis suggested that the active site is flexible and is not exactly complementary to the shape of the substrate.
Lock-and-key
Induced-fit
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The higher the Km value, the __________ the affinity of an enzyme to bind with its substrate.
higher
lower
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