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 |
 89%
From NCERT
NEET - 2024
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NEET 2025 - Target Batch
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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 |
 71%
From NCERT
NEET - 2023
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NEET 2025 - Target Batch
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Consider the given two statements:
Assertion (A): In solutions of different pH, the structure of amino acids changes.
Reason (R): A particular property of amino acids is the ionizable nature of –NH2 and –COOH groups.
 
1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. (A) is True but (R) is False.
3. Both (A) and (R) are True but (R) is not the correct explanation of (A).
4. (A) is False but (R) is True.
Subtopic:  Amino Acids |
 83%
From NCERT
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Tyrosine, phenylalanine and tryptophan are all:
1. Acidic amino acids
2. Sulphur containing amino acids
3. Essential amino acids
4. Aromatic amino acids
Subtopic:  Amino Acids |
 91%
From NCERT
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Consider the given two statements:
Assertion (A): Dietary proteins are the source of essential amino acids.
Reason (R): Amino acids are organic compounds containing an amino group and an acidic group as substituents on the same carbon.
 
1. Both (A) and (R) are True but the (R) does not explain (A).
2. (A) is True but (R) is False.
3. Both (A) and (R) are True and (R) correctly explains (A).
4. (A) is False but (R) is True.
Subtopic:  Amino Acids |
 82%
From NCERT
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