The major role of minor elements inside living organisms is to act as

A protein which act as a carrier and transport oxygen and carbon dioxide in human body is known as

ead the following statements: (i) During peptide bond formation dehydration occurs. (ii) During glycosidic bond formation, dehydration occurs. (iii) In a nucleic acid, a phosphate moiety links the 3’ carbon of one sugar of one nucleotide to the 5’ carbon of the sugar of the succeeding nucleotide. (iv) The bond between the phosphate and hydroxyl group is sugar is an ester bond. (v) The backbone of DNA is formed by sugar – phosphate – sugar chain where the nitrogenous bases face outside. How many of the above statements are correct?

Where would you expect to find serine and alanine amino acids in a globular protein in aqueous solution?

DNA has deoxyribose as the constituent sugar The position where the sugar lacks oxygen is

The enzyme amylase belongs to the class

The turnover number of an enzyme depends upon

Ricin is extracted from:

Which of the following is not consistent with the base pairings in a double stranded DNA molecule

Which one of the following is not mucilage?

Lysine is an essential amino acid as:

Which one is correct?

Which of the following statement regarding to the properties of starch is incorrect?

The polysaccharide that is used to determine the glomerular filtration rate is:

Select the incorrect statement:

In the graphical representation of Michaelis – Menten kinetics X represent:

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

Cholesterol is a precursor for each of the following except

Which one of the following is the most appropriate definition for an enzyme?

The advantages of storing carbohydrates in the form of polysaccharides are

A cellulose molecule is formed by the polymerisation of glucose. The number of glucose molecule present in a cellulose is

Casein of milk is:

In food starch is detected by:

Which of the following statements is correct with respect to competitive inhibitor of an enzyme?

Assertion: Arachidic acid is an unsaturated fatty acid. Reason: There are one or more double bonds between carbon atoms in unsaturated fatty acids.

How many of the following statements are correct? (i) Apoenzyme + Cofactor = Holoenzyme. (ii) Prosthetic group is an organic molecule that tightly binds to the apoenzyme. (iii) Coenzymes can serve as cofactors. (iv) Haem is the coenzyme of the enzyme peroxidise and Catalase. (v) Many coenzymes are derived from vitamins. (vi) Coenzymes are organic molecules which are loosely bound to the apoenzyme. (vii) Catalytic activity is lost when the cofactor is removed from the enzyme. (viii) Catalytic nucleic acids are known as ribozymes.

Which of the following describes the given graph correctly?

When the co-factor is removed from the enzyme, the catalytic activity

Which of the following is not correct?

Observe the reactions given below: (i) Guanine + X = Guanosine. (ii) Guanosine + Y = Guanylate (GMP). Identify X and Y.

Enzyme amylase belongs to the category:

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

Find out the primary, secondary, tertiary and quaternary protein structures in the diagram:

Choose the correct one with respect to the decreasing order of abundance of elements in cell:

The substrate has to go through a much higher energy state ir transition state in case of

The linkage that joins two adjacent nucleotides in RNA is

Read the following sentences: (i) Chitin, starch, glycogen and Agar – agar are homopolymers. (ii) In a glycogen, the left end is called the non – reducing end. (iii) Starch forms helical secondary structure but cellulose does not contain complex helices. (iv) Cellulose can easily hold iodine molecules. (v) Chitin is a storage polysaccharide. How many of the above statements are correct?

The three monosaccharide units of Raffinose are

Which one of the following is a fibrous polysaccharide?

Find the wrong statement about enzyme action?

Enzymes generally present in an organism have:

The carbon atoms of the pentose sugar involved in the phosphodiester bonds in DNA and RNA are:

NAD is an abbreviation for

Lock and Key model was developed for visualization of substrate and enzyme concentration was proposed by

Doctors represent sunflower oil as it is:

In a DNA molecule, the phosphate group is attached to _____ carbon of the sugar residue of its own nucleotide and ______ carbon of the sugar residue of the next nucleotide by ______ bonds.

Antiparallel strand of a DNA molecule means that

The six most common atoms in organic molecules are

Which one out of A-D given below correctly represents the structural formula of the basic amino acid?

The β – pleated sheet protein structure is due to: