Match List-I with List-II:
List-I List-II
A. Adenosine  I. Nitrogen base
B. Adenylic acid II. Nucleotide
C. Adenine III. Nucleoside
D. Alanine    IV. Amino acid
Choose the option with all correct matches.
1. A-III, B-II, C-I, D-IV
2. A-II, B-III, C-I, D-IV
3. A-III, B-IV, C-II, D-I
4. A-III, B-II, C-IV, D-I
Subtopic:  Nucleic Acid | Amino Acids |
 70%
From NCERT
NEET - 2025
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The following can be found as a zwitter ion:
1. Fatty acid 2. Monosaccharide
3. Amino acid 4. Nucleic acid
Subtopic:  Element Analysis | Amino Acids |
 88%
From NCERT
NEET - 2024
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NEET 2026 - Target Batch - Vital
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NEET 2026 - Target Batch - Vital

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 |
 71%
From NCERT
NEET - 2023
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NEET 2026 - Target Batch - Vital
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Given below are two statements:
Statement I: Amino acids have a property of ionizable nature of –NH2 and –COOH groups, hence have different structures at different pH.
Statement II: Amino acids can exist as Zwitterionic form at acidic and basic pH.
In the light of the above statements, choose the most appropriate answer from the options given below:
1. Both Statement I and Statement II are correct.
2. Both Statement I and Statement II are incorrect.
3. Statement I is correct but Statement II is incorrect.
4. Statement I is incorrect but Statement II is correct.
Subtopic:  Amino Acids |
 74%
From NCERT
NEET - 2022
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NEET 2026 - Target Batch - Vital
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Identify the basic amino acid from the following.

1. Glutamic Acid 2. Lysine
3. Valine 4. Tyrosine
Subtopic:  Amino Acids |
 84%
From NCERT
NEET - 2020
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NEET 2026 - Target Batch - Vital
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Identify the statement which is incorrect.

1. Sulphur is an integral part of cysteine.
2. Glycine is an example of lipids.
3. Lecithin contains a phosphorus atom in its structure.
4. Tyrosine possesses an aromatic ring in its structure.

Subtopic:  Amino Acids | Lipids |
 78%
From NCERT
NEET - 2020
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NEET 2026 - Target Batch - Vital
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