Biomolecules Te...

Select the option that correctly identifies the chemical bonds present in the given biomolecules. 
Polysaccharides - A, Proteins - B, Fats - C, Water - D

Which of the following is a heteropolymer?

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.

Which of the following statements is not correct regarding chitin?

Read the given statements and select the correct option.
Statement 1 : Hemoglobin is an example of quatenary structure of proteins.
Statement 2 : Hemoglobin molecule is composed of four polypeptide chains-two α-chains and two β-chains.

Match column I with column II and select the correct option from the given codes.

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

B-DNA which is right-handed double helix contains ______ base pairs per turn of the helix and each turn is _______ long.

The correct order of chemical composition of living tissues/cells in term of percentage of the total cellular mass is

Which bonds are indicated by X and Y in the given diagram?

What will be the molecular formula of a polypeptide consisting of 10 glycine molecules when the formula of glycine is    C₂H₅​NO₂?

An unknown liquid collected from a sample of peas, is added to a beaker of water and is vigorously shaken. After few minutes, water and the unknown liquid made two separate layers. To which class of biomolecules, does the unknown liquid most likely belongs?

Study the given statements and select the correct answer.
(i) Cellulose is a homopolymer of glucose.
(ii) Inulin is a homopolymer of fructose.
(iii) Starch gives blue colour and glycogen gives red colour with iodine solution.
(iv) Cellulose gives no colour with iodine solution.

Read the given statement and select the option that correctly identifies X and Y.
In a glycogen molecule, successive glucose units are joined together by X and branches are linked together by Y.

Which of the following secondary metabolites are used as drugs?

_____is the most abundant protein in animal world and ____is the most abundant protein in the whole biosphere.

Read the given statements and select the correct option.
i. Right end of a polysaccharide chain is called reducing end while left end is called non-reducing end.
ii. Starch can hold iodine molecules in its helical secondary structure but cellulose being non-helical, cannot hold iodine.
iii. Starch and glycogen are branched molecules.
iv. Starch and glycogen are the reserve food materials of plants and animals, respectively.

Refer the two reactions (i) and (ii) given below and select the correct option
(i) ADP + Pi → ATP
(ii) ATP → ADP + Pi

Read the given statements.
(i) Fructose is the sweetest sugar.
(ii) Glycine is the simplest amino acid.
(iii) Lactose is a disaccharide composed of one molecule each of glucose and galactose.
(iv) Cellulose is an unbranched chain of glucose molecules linked by β−1, 4-glycosidic bond.
Which of the given statements are correct?

The regulation by an organism of chemical composition of its blood and body fluids and other aspects of its internal environment so that physiological processes can proceed at optimum rates is called