Assertion (A): Glycine is a neutral amino acid.
Reason (R): Glycine contains one amino group and one carboxyl group.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
 

Subtopic:  Amino Acids | Different Amino Acids |
 72%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

Assertion (A): An example of non-competitive inhibitor is cyanide.
Reason (R): Cyanide kills animals by inhibiting cytochrome oxidase.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
 
Subtopic:  Enzyme Inhibition: Introduction | Enzyme Inhibition | Properties of Enzymes |
Please attempt this question first.
Hints

Assertion (A): Amino acids are called \(\alpha\)-amino acids.
Reason (R): Amino acids are organic compounds containing an amino group and an acidic group as substituents on the  \(\alpha\)-carbon.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Amino Acids | Proteins | Different Amino Acids |
 90%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

advertisementadvertisement

Assertion (A): A protein is a heteropolymer.
Reason (R): It is a made of different types of amino acids.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
 
Subtopic:  Amino Acids | Proteins |
 92%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

Assertion (A): The exoskeleton of insects is made of chitin.
Reason (R): Chitin is a homopolysaccharide.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Carbohydrates | Carbohydrates: Cellulose, Chitin, Inulin & Agar |
 71%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

Assertion (A): The heterocyclic compounds in nucleic acids are the nitrogenous bases.
Reason (R): There are five types of nitrogenous bases which exists naturally.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Nucleic Acid | Nucleic Acid: Nucleotides |
 81%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

advertisementadvertisement

Assertion (A): The long protein chain is folded upon itself like a hollow giving rise to the tertiary structure.
Reason (R): Tertiary structure gives a 3-D form to protein.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Proteins | Introduction to Proteins |
 61%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

Assertion (A): Most of the enzymes are proteins.
Reason (R): Few enzymes are made up of RNA.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Enzymes |
 77%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

Assertion (A): The protein part of enzyme is called apoenzyme.
Reason (R): Zinc acts as prosthetic group of the enzyme carboxypeptidase.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Enzyme Cofactors |
 58%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.

advertisementadvertisement

Assertion (A): Hydrolases are the enzymes which catalyse the hydrolysis of ester, ether, peptide and glycosidic bonds.
Reason (R): Lyases functions as ligases.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
 
Subtopic:  Enzymes Classification |
 86%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.