1
NEET 2023
MCQ (Single Correct Answer)
+4
-1
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Given below are two statements :

Statement I : Low temperature preserves the enzyme in a temporarily inactive state whereas high temperature destroys enzymatic activity because proteins are denatured by heat.

Statement II : When the inhibitor closely resembles the substrate in its molecular structure and inhibits the activity of the enzyme, it is known as competitive inhibitor.

In the light of the above statements, choose the correct answer from the options given below:

A
Both Statement I and Statement II are false.
B
Statement I is true but Statement II is false.
C
Statement I is false but Statement II is true.
D
Both Statement I and Statement II are true.
2
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

When a carrier protein facilitates the movement of two molecules across the membrane in same direction, it is called

A
Symport
B
Uniport
C
Transport
D
Antiport
3
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

Match List-I with List-II

List-I
List-II
(a) Adenine (i) Pigment
(b) Anthocyanin (ii) Polysaccharide
(c) Chitin (iii) Alkaloid
(d) Codeine (iv) Purine

Choose the correct answer from the options given below

A
(a) - (i), (b) - (iv), (c) - (iii), (d) - (ii)
B
(a) - (iv), (b) - (i), (c) - (ii), (d) - (iii)
C
(a) - (iv), (b) - (iii), (c) - (ii), (d) - (i)
D
(a) - (iii), (b) - (i), (c) - (iv), (d) - (ii)
4
NEET 2022 Phase 2
MCQ (Single Correct Answer)
+4
-1

Primary proteins are also called as polypeptides because :

A
They can assume many conformations
B
They are linear chains
C
They are polymers of peptide monomers
D
Successive amino acids are joined by peptide bonds
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