Many organic substances are negatively charged e.g., acetic acid, while others are positively charged e.g., ammonium ion. An amino acid under certain conditions would have both positive and negative charges simultaneously in the same molecule. Such a form of amino acid is called

1.Positively charged form 2.Negatively charged form
3.Neutral form 4.Zwitter ionic form
Subtopic:  Amino Acids |
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Which of the following is not an aromatic amino acid?

1. Phenylalanine 2. Threonine
3. Tyrosine 4. Tryptophan
Subtopic:  Amino Acids |
 82%
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An amino acid that is negative charged amongst the following will be:

1. Glutamic acid 2. Lysine
3. Arginine 4. Histidine
Subtopic:  Amino Acids |
 71%
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The simplest α amino acid is:

1. Glycine 2. Alanine
3. Serine 4. Lysine
Subtopic:  Amino Acids |
 91%
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Identify the amino acid shown in the given figure:
  
1. Glycine 2. Alanine
3. Serine 4. Lysine
Subtopic:  Amino Acids |
 83%
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All the following are examples of basic amino acids except:
1. Lysine 2. Histidine
3. Arginine 4. Valine
Subtopic:  Amino Acids |
 77%
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Identify an acidic amino acid amongst the following:    
1. 2.
3. 4.
Subtopic:  Amino Acids |
 78%

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Consider the given two statements:
Statement 1: Certain amino acids are essential for our health.
Statement 2: Only such amino acids are used to make proteins in our body according to our own genetic code.
 
1. Both Statement 1 and Statement 2 are correct and Statement 2 correctly explains Statement 1
2. Both Statement 1 and Statement 2 are correct but Statement 2 does not correctly explain Statement 1
3. Statement 1 is correct but Statement 2 is incorrect
4. Statement 1 is incorrect but Statement 2 is correct
Subtopic:  Amino Acids |
 64%
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The given figure shows:

1. two amino acids linked by a peptide bond formed due to dehydration synthesis
2. two nucleotides linked by a dinucleotide bond formed due to dehydration synthesis
3. two amino acids linked by a peptide bond forming a zwitter ion
4. two nucleotides linked by an ester bond due to hydrolysis
Subtopic:  Amino Acids |
 80%

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