Most common element present in human body is:
| 1. | Oxygen | 2. | Carbon | 
| 3. | Hydrogen | 4. | Sulfur | 
When we homogenize any tissues in an acid the acid soluble pool represents
| 1. | Cytoplasm | 2. | Cell membrane | 
| 3. | Nucleus | 4. | Mitochondria | 
Consider the following statements:
| I: | Glycine is the simplest amino acid, with a hydrogen atom as its side chain (R group). | 
| II: | Tryptophan is an aromatic amino acid. | 
| III: | Lysine is an acidic amino acid. | 
 
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
Which of the following is not an aromatic amino acid?
| 1. Phenylalanine | 2. Threonine | 
| 3. Tyrosine | 4. Tryptophan | 
| 1. | Thymine | 2. | Thymosine | 
| 3. | Thymidylic acid | 4. | Cytidylic acid | 
An amino acid that is negative charged amongst the following will be:
| 1. Glutamic acid | 2. Lysine | 
| 3. Arginine | 4. Histidine | 
The simplest α amino acid is:
| 1. | Glycine | 2. | Alanine | 
| 3. | Serine | 4. | Lysine | 
| 1. | Lysine | 2. | Histidine | 
| 3. | Arginine | 4. | Valine | 
| Column I [Component] | Column II [% of the total cellular mass] | 
| A. Protein | P. 2 | 
| B. Carbohydrates | Q. 1 | 
| C. Lipids | R. 5-7 | 
| D. Nucleic acids | S. 3 | 
| T. 10-15 | |
| U. 70-90 | 
| A | B | C | D | |
| 1. | U | P | R | Q | 
| 2. | T | S | P | R | 
| 3. | T | P | S | R | 
| 4. | P | Q | R | S |