Cellulose does not form blue colour with Iodine because
1. It breaks down when iodine reacts with it.
2. It is a disaccharide.
3. It is a helical molecule.
4. It does not contain complex helices and hence cannot hold iodine molecules.
Subtopic:  Carbohydrates: Cellulose, Chitin, Inulin & Agar |
 83%
From NCERT
NEET - 2023
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Malonate inhibits the growth of pathogenic bacteria by inhibiting the activity of:
1. Dinitrogenase 2. Succinic dehydrogenase
3. Amylase 4. Lipase
Subtopic:  Enzyme Inhibition |
 85%
From NCERT
NEET - 2023
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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:
1. Statement I is false but Statement II is true.
2. Both Statement I and Statement II are true.
3. Both Statement I and Statement II are false.
4. Statement I is true but Statement II is false.
Subtopic:  Factors Affecting Enzyme Catalysis Reaction | Enzyme Inhibition |
 85%
From NCERT
NEET - 2023
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Given below are two statements:
Statement I: A protein is imagined as a line, the left end represented by first amino acid (C-terminal) and the right end represented by last amino acid (N-terminal).
Statement II: Adult human haemoglobin, consists of 4 subunits (two subunits of \(\alpha\) type and two subunits of ẞ type.)
In the light of the above statements, choose the correct answer from the options given below: 
1. Statement I is false but Statement II is true.
2. Both Statement I and Statement II are true.
3. Both Statement I and Statement II are false.
4. Statement I is true but Statement II is false.
Subtopic:  Amino Acids | Proteins |
 68%
From NCERT
NEET - 2023
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Match List - I with List - II
List-I List-II
(A) Protein (I) C=C double bonds
(B) Unsaturated fatty acid (II) Phosphodiester bond
(C) Nucleic acid (III) Glycosidic bonds
(D) Polysaccharide (IV) Peptide bonds
Choose the correct answer from the options given below:
Options: (A) (B) (C) (D)
1. II I IV III
2. IV III I II
3. IV I II III
4. I IV III II
Subtopic:  Nucleic Acid | Proteins | Lipids | Carbohydrates: Glycosidic Bond & Disaccharide |
 87%
From NCERT
NEET - 2023
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Inulin is a polymer of:
1.Fructose2.Galactose
3.Amino Acids4.Glucose
Subtopic:  Carbohydrates: Cellulose, Chitin, Inulin & Agar |
 84%
From NCERT
NEET - 2023
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Which of the following is not a secondary metabolite?
1. Curcumin 2. Morphine
3. Anthocyanin 4. Lecithin
Subtopic:  Primary & Secondary Metabolites |
 68%
From NCERT
NEET - 2023
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Match List - I with List - II
List-I List-II
(A) Terpenoids (I) Codeine
(B) Unsaturated fatty acid (II) Diterpenes
(C) Nucleic acid (III) Ricin
(D) Polysaccharide (IV) Concanavalin A
Choose the correct answer from the options given below:
Options: (A) (B) (C) (D)
1. II IV III I
2. II I IV III
3. II III I IV
4. II IV I III
Subtopic:  Primary & Secondary Metabolites |
NEET - 2023
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Exoskeleton of arthropods is composed of :
1. Glucosamine
2. Cutin
3. Cellulose
4. Chitin

Subtopic:  Carbohydrates: Cellulose, Chitin, Inulin & Agar |
 87%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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Read the following statements on lipids and find out correct set of statements:

a. Lecithin found in the plasma membrane is a glycolipid.
b. Saturated fatty acids possess one or more c=c bonds.
c. Gingely oil has lower melting point, hence remains as oil in winter.
d. Lipids are generally insoluble in water but soluble in some organic solvents.
e. When fatty acid is esterified with glycerol, monoglycerides are formed.


Choose the correct answer from the options given below:
1. (a), (b) and (d) only
2. (a), (b) and (c) only
3. (a), (d) and (e) only
4. (c), (d) and (e) only

Subtopic:  Lipids |
 69%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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