Which of the following monosaccharide is pentose sugar?
| 1. | Mannose | 2. | Ribose |
| 3. | Galactose | 4. | Glucose |
The following diagram shows the molecular structure of:
| 1. | A hexose sugar |
| 2. | An aromatic amino acid |
| 3. | A nitrogenous base found in RNA |
| 4. | An important constituent of a DNA nucleotide. |
Choose the incorrect match.
|
1. |
Arachidonic acid |
- |
20C fatty acid including carboxyl carbon |
|
2. |
Lecithin |
- |
Phospholipid found in cell membrane |
|
3. |
Cytidine |
- |
Nitrogenous base of DNA |
|
4. |
Vinblastin |
- |
Secondary metabolite used as anti-cancer drug |
The molecule represented is :-

| 1. | uridine and it is pyrimidine |
| 2. | uridylic acid and it is nucleoside |
| 3. | uridylic acid and it is nucleotide |
| 4. | uridine and it is nucleoside |
The structure given below is of
1. A purine base
2. Adenosine
3. Adenylic acid
4. A pyrimidine base
The compound shown below:

1. is a component of the ATP molecule
2. is most commonly found in ori region of DNA
3. can have enzymatic activity
4. may be a component of the cell membrane