Which among the following is an essential fatty acid in mammals?

The loss of tertiary and quaternary structure of an enzyme brings out:

If one amino acid in each beta chain of haemoglobin, out of 574 amino acids do not occupy normal place it can lead to

A polymer that is formed by glycosidic linkage of many monosaccharide units is called as

The vitamin Niacin functions as coenzyme in

Which of the following is a purine nucleoside?

In the average composition of a cell, the maximum % of total cellular mass [after water and protein] is constituted by

Jute fibres deteriorate quickly because

Nitrogen bases do not contain:

The number of monosaccharide units in a polysaccharide is

A specific low molecular weight substance such as the product of another enzyme in the chain reaction which binds with a specific site of the enzyme different from its substrate binding site is called as

statement best describes the information shown in the graph below:

Find out the number of trioses, tetroses, pentoses, hexoses and heptoses from the following monosaccharides: Glyceraldehyde, Dihydroxy acetone, Erythrose, Erythrulose, Ribose, Ribulose, Xylulose, Arabinose, Deoxyribose, Glucose, Fructose, Galactose, Mannose, Rhamnose, Sedoheptose.

Which statement is true?

Glucose is

Most of the blood proteins in our body are

In the DNA molecule

What is the term used for a protein molecule that assists in the proper folding of other proteins?

Heating may cause denaturation of enzyme or protein mainly by damaging its

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

How many ester bonds are present in a simple triglyceride?

A compound which is responsible for structure of membranes of cell and its organelles is a

Identify X and Y in the newly synthesised polypeptide chain given below:

The unique properties of each amino acid are determined by its particular

If Oligosaccharides is hydrolyzed, it will yield up to two to ten

What type of bond is indicated by X in the diagram given below?

Inhibitors blocking active site by making covalent bonds are specifically known as

Amylose is formed by condensation between

The enzyme code of enzyme 2.7.1.1 refers to the following main groups:

β - pleated structure of protein is present in silk fibres, the protein is

Antiparallel strands of a DNA molecule means that

Locomotion is a very important feature in animals. Considering the frequent need for locomotion in animals, an animal would obtain the greatest benefit from storing its energy as

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

The inorganic compounds like phosphate, sulphate, etc which becomes available in the filtrate after grinding the living tissue in trichloroacetic acid represents:

Both in cells and extracellular fluids dibasic phosphate (HPO4-) and monobasic phosphate (H2PO4-) act as acid base buffers to maintain-

Which of the following is phospholipids?

Match the following:

Column I	Column II
Class 1	I. Ligases
Class 2	II. Isomerases
Class 3	III. Lyases
Class 4	IV. Hydrolases
Class 5	V. Transferases
Class 6	VI. Oxido-reductase or dehydrogenase or redox enzyme.

The feedback effect in enzymatic action refers to

Which of the following is incorrect?

In amylose chain, glucose molecules are linked through

Analyse the figure given below. The Km values for the curves of four different enzymes and their substrates (P, Q, R and S) are 1.72, 0.25, 3.40 and 5.75 respectively. Select the correct order about their enzyme – substrate affinity?

Which one of the following correct average composition of cells with respect to the percentage of total cellular mass?

	H2O	Proteins	Carbohydrates	lipid	Nucleic acids	Ions
(A)	70 – 90	10 – 15	3	2	5 – 7	1
(B)	70 – 90	3	10 – 15	2	5 – 7	1
(C)	70 – 90	10 – 15	2	3	1	5 – 7
(D)	70 – 90	3	10 – 15	2	5 – 7	1

Vitamin nicotinamide and the plant hormone indole-3-acetic acid are formed from

Which one of the following is saturated fatty acid?

Chitin is the second most abundant organic substance present in the exoskeleton of insects and crustaceans. It is a

An amino has the following structure. Which two groups combine to form the peptide linkage?

Consider the following flow chart where A represents Filtrate/Acid soluble pool and B represents Retentate/Acid insoluble fraction pellet: (i) Molecular weight ranging from 18 to 800daltons (Da) approximately. (ii) Has four types of organic compounds – proteins, nucleic acids, polysaccharides and lipids. (iii) Contains chemicals that have molecular weight more than 10,000Da. (iv) Has monomers. (v) Has generally polymers. (vi) Represent rough chemical composition of cytosol. (vii) Represent the framework of cytoplasm and cell organelles. Which of the following is the correct statement (i) –(vii) for A and B?

Find the basic amino acids?

Which of the following is used to ice creams, cosmetics and medicines to emulsify and give a smooth texture?

In non-competitive inhibition