In a normal adult, ascending order of concentration of following molecules is

(1) K>Na>Fe>Cu             

(2) Na>K>Cu>Fe

(3) Fe>Na>K>Cu             

(4) Na>Fe>K>Cu

Subtopic:  Introduction |
 50%
From NCERT
AIIMS - 2012
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Which of the following is a homopolysaccharide?

(1) Heparin

(2) Inulin

(3) Pectin

(4) Hyaluronic acid

Subtopic:  Carbohydrates: Cellulose, Chitin, Inulin & Agar |
 86%
From NCERT
AIIMS - 2012
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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

Subtopic:  Primary & Secondary Metabolites |
 84%
From NCERT
AIIMS - 2013
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DNA and RNA comprise of 

(1) sugar, phosphate, base

(2) sugar, phosphate

(3) base, phosphate

(4) sugar, base

Subtopic:  Double Helix : Watson & Crick Part 1 | Double Helix : Watson & Crick |
 90%
From NCERT
AIIMS - 2014
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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

Subtopic:  Different Amino Acids |
 58%
AIIMS - 2014
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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

(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)

Subtopic:  Primary & Secondary Metabolites |
 92%
From NCERT
AIIMS - 2015
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Cholesterol is a precursor for each of the following except

(1) bile salts                 

(2) vitamin D

(3) insulin                     

(4) steroids

Subtopic:  Lipids: Glycerolipids, Phospholipids & Glycerol |
AIIMS - 2015
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Which one of the following is an incorrect combination?

(1) Adenine, thymine, cytidine

(2) Adenine, cytosine, thymine

(3) Guanine, thymine, uracil

(4) Cytosine, uracil, guanine

Subtopic:  Double Helix : Watson & Crick Part 1 | Double Helix : Watson & Crick |
 62%
From NCERT
AIIMS - 2015
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Identify the given structure:

(1) Adenylic acid

(2) Uracil

(3) Cholesterol

(4) Adenosine

Subtopic:  Double Helix : Watson & Crick Part 1 | Double Helix : Watson & Crick |
 78%
From NCERT
AIIMS - 2016
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Excess carbohydrates and proteins are stored in the body as

(1) amino acids                       

(2) fats

(3) starch                               

(4) monosaccharides

 75%
AIIMS - 2012
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