Match the following (a) Inhibitor of catalytic activity (i) Ricin (b) Possess peptide bonds (ii) Malonate (c) Cell wall material in fungi (iii) Chitin (d) Secondary metabolite (iv) Collagen Choose the correct option from the following

(a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)

(a)-(iii), (b)-(i), (c)-(iv), (d)-(ii)

(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)

(a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)

HARD

Earn 100

Consider the following reactions, what is/are the product/s formed when D-fructose is reduced by ${NaBH}_{4}$ ?

$(I) D-Glucose \overset{{NaBH}_{4}}{\to} X$

$(II) D-Mannose \overset{{NaBH}_{4}}{\to} Y$

$(III) D-Fructose \overset{{NaBH}_{4}}{\to} Product(s)$

50% studentsanswered this correctly

Important Questions on Biomolecules

HARD

Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

The activity of a certain protein is dependent on its phosphorylation. A mutation in its gene changed a single amino acid which affected the function of the molecule. Which amino acid change is most likely to account for this observation?

EASY

Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

Optical activity of DNA is due to its:

MEDIUM

Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

Which of the following amino acids is NOT involved in gluconeogenesis?

HARD

Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

Two tubes labelled 'P' and 'Q' contain foodstuff. Tube 'P' gave a positive test with Benedict's solution while tube 'Q' gave a positive test with nitric acid. Which of the following is correct?

EASY

Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

How many different proteins consisting of 100 amino acids can be formed from 20 different amino acids?

HARD

Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

Which one of the following techniques is used for the detection of proteins?

MEDIUM

Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

25000 Da

protein contains a single binding site for a molecule (ligand), whose molecular weight is

2500 Da

. Assuming high affinity and physiologically irreversible binding the amount of the ligand required to occupy all the binding sites in

10 mg

protein will be:

MEDIUM

Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

Match the following

(a)	Inhibitor of catalytic activity	(i)	Ricin
(b)	Possess peptide bonds	(ii)	Malonate
(c)	Cell wall material in fungi	(iii)	Chitin
(d)	Secondary metabolite	(iv)	Collagen

Choose the correct option from the following

MEDIUM

Chemistry>Organic Chemistry>Biomolecules>Carbohydrates

Choose the CORRECT combination of statements given below related to cysteine residue in proteins.

i. Cysteine can be linked to tyrosine by S-O bond.

ii. Cysteine can be linked to another cysteine by S-S bond.

iii. Cysteine can complex with