The most abundant chemical in living organisms is -
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:

"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