Q. No.The most abundant chemical in living organisms is -
1. Water.
2. Protein.
3. Carbohydrate.
4. Nucleic acid.
1. Water.
2. Protein.
3. Carbohydrate.
4. Nucleic acid.
Which of the following is an example of branched
polymer?
| 1. | Chitin. | 2. | Cellulose. |
| 3. | Amylose. | 4. | Glycogen |
During catalytic cycle of an enzyme action the binding
of the __a__ induces the __b__ to alter its shape. Here
a and b is _________
| 1. | Substrate, enzyme. |
| 2. | Enzyme, substrate. |
| 3. | Substrate, Substrate. |
| 4. | Enzyme, Enzyme |
Long protein chain folded upon itself like a hollow woolen ball and gives us a 3-dimensional view of a protein belongs to
| 1. | Primary structure | 2. | Secondary structure |
| 3. | Tertiary structure | 4. | Quaternary structure |
In nucleic acid the bond between the phosphate and hydroxyl group of sugar is
1. Hydrogen bond
2. Glycosidic bond
3. Ester bond
4. Peptide bond
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. |
"Ramachandran plot" is used to confirm the structure of:
1. RNA
2. Proteins
3. Triacylglycerides
4. DNA
Similarity between Inulin, Lecithin and Insulin is -
| 1. | All are polymeric compound. |
| 2. | All are natural polypeptides. |
| 3. | All contains C,H,O and N. |
| 4. | None of these. |
Read the following statement (A-D) :-
| (a) | Each protein is a polymer of amino acids. |
| (b) | A protein is a hetero polymer and not a homopolymer. |
| (c) | Dietary proteins are the source of essential amino acid. |
| (d) | Collagen is the most abundant protein in whole of the biosphere. |
How many of the above statement are right ?
1. Three
2. One
3. Two
4. Four
A list of different metabolites is given below in this list find out the number of primary & secondary metabolites, respectively & chooses the correct option:
Alkaloids, Abrin, Ricin, Carotenoids, Amino acids,
Glucose, Fructose, Fatty acids, Thymine, Uracil,
Lectins, Drugs.
1. Five and Six
2. Six and Six
3. Seven and five
4. Four and Eight
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