The number of correct statements amongst the given statements is:

I. Amino acids are substitute methanes.

II. The R group in serine is hydroxyl-methyl.

III. Arachidonic acid has 20 carbon atoms including the carboxyl carbon.

IV. Glycerol is trihydroxypropane.

V. Lecithin is a phospholipid.

 1.  2     

 2.  3

 3.  4   

 4.  5

Subtopic:  Amino Acids | Lipids |
 74%
From NCERT
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A basic amino acid among the following is

1. Glutamate

2. Aspartate

3. Lysine

4. Valine

Subtopic:  Amino Acids |
 90%
From NCERT
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Zwitterions are ionized species of

1. Acidic amino acids

2. Basic amino acids

3. Neutral amino acids

4. All of these

Subtopic:  Amino Acids |
 62%
From NCERT
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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 |
 73%
From NCERT
NEET - 2022
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Non-essential amino acids

1. Must be obtained from

2. Are synthesized in our body

3. Are not needed in our diet

4. Both (2) & (3)

Subtopic:  Amino Acids |
 76%
From NCERT
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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 |
 69%
From NCERT
NEET - 2023
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