Biology- 11 Chapter 3
Enzymes - 2
1.
An enzyme combines with its substrate to form?
a) A short lived enzyme- substrate
b) An enzyme- substrate complex
c) A short lived enzyme- substrate complex
d) A complex, short lived enzyme- substrate
2.
Once a reaction has occurred, the complex breaks up into?
a) Products and enzyme
b) Products and catalyst
c) Biological Enzymes
d) Products
3.
At the end of the reaction, the enzyme?
a) Answers i. and iii. are correct
b) Remains unchanged
c) Interact again with other molecules of the substrate
d) Forms a short lived enzyme- substrate
4.
These are thermo labile catalysts, protein in nature, which can work in living tissues and also outside the tissues?
a) Enzymes
b) Substrates
c) Catalysts
d) Anabolism
5.
What happens to a enzyme when it takes part in chemical reaction?
a) Answers i. and ii. are correct
b) Interact again with other molecules of the substrate
c) Forms a short lived enzyme- substrate
d) Remains unchanged
6.
All the enzymes are proteins, so each enzyme has its own?
a) Structure
b) Specific conformation
c) None of these
d) Configuration
7.
The enzymes have a relatively?
a) High molecular strength
b) Low molecular weight
c) Low molecular strength
d) High molecular weight
8.
molecular weight of enzymes is?
a) peroxidase-40,000 and catalase 250,000 approx
b) peroxidase-40,000 and catalase 255,000 approx
c) peroxidase-45,000 and catalase 250,000 approx
d) peroxidase-42,000 and catalase 250,000 approx
9.
Enzymes form colloidal suspension in the?
a) Catalysts
b) Cytosol
c) Anabolism
d) Substrates
10.
Which molecules can be denatured by high temperature and lose their enzymatic activity?
a) Anabolism
b) Catalysts
c) Enzyme
d) Substrates
This is more feedback!
This is the feedback!
