From the following groups, select the one which has only secondary metabolites?

(a) Arbin, cellulose, arginine, tyrosine

(b) Glycine, gums, serine, diterpenes

(c) Carotenoids, phenylalanine, curcumin, rubber

(d) Conclavin-A, morphine, codeine, vinblastine

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DNA and RNA comprise of 

(a) sugar, phosphate, base

(b) sugar, phosphate

(c) base, phosphate

(d) sugar, base

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

(a) Valine, leucine, glycine, alanine

(b) Glycine, serine, proline, glutamic acid

(c) Proline, aspartic acid, glutamic acid, methionine

(d) Cysteine, tyrosine, alanine, isoleucine

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

          Column-I                               Column-II

A. Pigments                           (i) Abrin, ricin

B. Toxins                               (ii) Concanavalin A

C. Alkaloids                           (iii) Carotenoids

D. Lectins                              (iv) Morphine, codeine

(a) A-(iv), B-(iii), C-(i), D-(ii)

(b) A-(ii), B-(iv), C-(i), D-(iii)

(c) A-(iii), B-(i), C-(iv),D-(ii)

(d) A-(i), B-(ii), C-(iii), D-(iv)

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Cholesterol is a precursor for each of the following except

(a) bile salts                  (b) vitamin D

(c) insulin                      (d) steroids

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Which one of the following is an incorrect combination?

(a) Adenine, thymine, cytidine

(b) Adenine, cytosine, thymine

(c) Guanine, thymine, uracil

(d) Cytosine, uracil, guanine

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Identify the given structure:

(a) Adenylic acid

(b) Uracil

(c) Cholesterol

(d) Adenosine

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Match the tissues/molecules mentioned in column I with those of their degrading enzymes mentioned in column II and select the correct option from the given codes.

            Column I                             Column II

A.  Cell wall                               (i)  Proteases

B. RNA                                      (ii) Pectinases

C. Histone                                 (iii) Ribonucleases

D. Pectin                                   (iv) Cellulase

(a) A-(iv), B-(iii), C-(i), D-(ii)

(b) A-(ii), B-(i), C-(iv),D-(iii)

(c) A-(i),B-(ii),C-(iii),D-(iv)

(d) A-(iii),B-(iv),C-(ii), D-(i)

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Excess carbohydrates and proteins are stored in the body as

(a) amino acids                       (b) fats

(c) starch                               (d) monosaccharides

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Nickel contributes to the formation of one of the following

(a) urease                               (b) dehydrogenase

(c) rubisco protein                   (d) nitrate reductase

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