Jute fibres deteriorate quickly because

(1) cellulose content is high

(2) lignin content is high

(3) cellulose content is low

(4) lignin content is low

Vitamin B₆ is also called:-

In a 50 gm living tissue, what would be the amount of water?

1. 15-25 gm

2. 25-30 gm

3. 35-45 gm

4. 70-90 gm

Which of the following elements is present in very less quantity in the body?

1. K             

2. Ca

3. Mg           

4. Cu

Which of the following is a homopolysaccharide?

From the following groups, select the one which has only secondary metabolites?
1. Arbin, cellulose, arginine, tyrosine
2. Glycine, gums, serine, diterpenes
3. Carotenoids, phenylalanine, curcumin, rubber
4. Conclavin-A, morphine, codeine, vinblastine

DNA and RNA comprise of 

(1) sugar, phosphate, base

(2) sugar, phosphate

(3) base, phosphate

(4) sugar, base

Which of the following options consist of non-essential amino acids only?

1. Valine, leucine, glycine, alanine

2. Glycine, serine, proline, glutamic acid

3. Proline, aspartic acid, glutamic acid, methionine

4. Cysteine, tyrosine, alanine, isoleucine

Match Column - I with Column -II and select the correct option from codes given below.

1. A-(iv), B-(iii), C-(i), D-(ii)
2. A-(ii), B-(iv), C-(i), D-(iii)
3. A-(iii), B-(i), C-(iv),D-(ii)
4. A-(i), B-(ii), C-(iii), D-(iv)

Cholesterol is a precursor for each of the following except

1. bile salts                 

2. vitamin D

3. insulin                     

4. steroids