Ch # 03
|
1
|
An enzyme with its coenzyme or prosthetic group is removed is designated as
|
O
|
Apoenzymes
|
O
|
Holoenzymes
|
O
|
Activator
|
O
|
Co-factor
|
|
2
|
Change in 3 D structure of enzymes causes by heat
,chemical energy causing to its loss function
|
O
|
Deamination
|
O
|
Denaturation
|
O
|
Bioremediation
|
O
|
Activation
|
|
3
|
Which model is more effective
for enzyme specificity?
|
O
|
Lock&key model
|
O
|
Induced fit model
|
O
|
Emil fischer model
|
O
|
None
|
|
4
|
Pepsin(stomach enzyme) works maximum at?
|
O
|
25 Degree centigrade
|
O
|
30 degree centigrade
|
O
|
37 degree centigrade
|
O
|
None
|
|
5
|
ES complex is formed by?
|
O
|
Catalytic site
|
O
|
Binding site
|
O
|
Substrate
|
O
|
Product formation
|
|
6
|
Enzymes are not
sensitive to even a minor change?
|
O
|
pH
|
O
|
T
|
O
|
Substrate concentration
|
O
|
Enzyme concentration
|
|
7
|
Enzymes are biocatalyst but chemically are?
|
O
|
Carbohydrate
|
O
|
Protein
|
O
|
Lipids
|
O
|
Nucleic acid
|
|
8
|
Which type of energy is provided by HEAT to enzymes?
|
O
|
Potential energy
|
O
|
Gravitational energy
|
O
|
Activation energy
|
O
|
None
|
|
9
|
If non-protein is loosely attached to enzymes?
|
O
|
Activator
|
O
|
Prosthetic group
|
O
|
Inhibitor
|
O
|
Co-enzyme
|
|
10
|
Many enzymes are simply dissolved in the?
|
O
|
Mitochondria
|
O
|
Cytoplasm
|
O
|
Golgi apparatus
|
O
|
Ribosomes
|
|
11
|
Which of the following perform its activity
maximum at neutral PH?
|
O
|
Pepsin
|
O
|
Trypsin
|
O
|
Chymotrypsin
|
O
|
Arginase
|
|
12
|
Which form enzyme –inhibitor complex other than active
site?
|
O
|
Irreversible inhibitors
|
O
|
Competitive inhibitor
|
O
|
Non-competitive inhibitors
|
O
|
None
|
|
13
|
Which of the following is the competitive inhibitor for
succinic acid dehydrogenase?
|
O
|
Succinic acid
|
O
|
Fumaric acid
|
O
|
Oxalic acid
|
O
|
Malonic acid
|
|
14
|
Which statement is not true for enzyme?
|
O
|
Protein
|
O
|
Catalysis
|
O
|
Sensitive
|
O
|
Non-specific
|
|
15
|
The enzymes
which carry out the synthesis of protein are integral part of?
|
O
|
Cytoplasm
|
O
|
Mitochondria
|
O
|
Ribosomes
|
O
|
Lysosomes
|
|
16
|
….proposed lock&key model for enzyme action
|
O
|
Emil fischer
|
O
|
Koshland
|
O
|
Calvin
|
O
|
Brown
|
|
17
|
Which of the following inhibitor is beneficial for
human health?
|
O
|
Poison
|
O
|
Cyanide
|
O
|
Antibiotics
|
O
|
none
|
