Q. No."Ramachandran plot" is used to confirm the structure of:
1. RNA
2. Proteins
3. Triacylglycerides
4. DNA
All the following statements about cellulose are correct, except
| 1. | Cellulose is homopolymer |
| 2. | it is the most abundant organic molecule in the biosphere |
| 3. | It is branched polymer of -glucose |
| 4. | It has 1-4 glycosidic bonds |
Prosthetic groups differ from co-enzymes, in which:
| 1. | they require metal ions for their activity. |
| 2. | they (prosthetic groups) are tightly bound to apoenzymes. |
| 3. | their association with apoenzymes is transient. |
| 4. | they can serve as co-factors in a number of enzyme-catalyzed reactions. |
Which of the following organic compounds is the main constituent of Lecithin?
1. Arachidonic acid
2. Phospholipid
3. Cholesterol
4. Phosphoprotein
The compound shown below:
1. is a component of ATP molecule
2. is most commonly found in ori region of DNA
3. can have enzymatic activity
4. may be a component of cell membrane
The chitinous exoskeleton of arthropods is formed by the polymerisation of–
1. D- glucosamine
2. N- acetyl glucosamine
3. Lipoglycans
4. Keratin sulphate and chondroitin sulphate
Which of the following cofactor is essential for the proteolytic enzyme carboxypeptidase?
1. Zinc
2. Copper
3. Magnesium
4. Iron
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