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)

Identify the functions of these proteins respectively: List I List II i) Trypsin A) Enables glucose transport into cells ii) Receptor B) Enzymes iii) Insulin C) Intercellular ground substance iv) GLUT-4 D) Hormone v) Collagen E) Taste receptor

i = B , ii = E , iii = D , iv = A , v = C

i = A , ii = B , iii = D , iv = C , v = E

i = B , ii = A , iii = D , iv = C , v = E

i = A , ii = D , iii = C , iv = B , v = E

EASY

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In which structure of protein only peptide bond is present?

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Important Questions on Biomolecules

EASY

Biology>Cell : Structure and Functions>Biomolecules>Proteins

Identify the statement which is incorrect.

EASY

Biology>Cell : Structure and Functions>Biomolecules>Proteins

Which one of the following is the most abundant protein in the animals?

EASY

Biology>Cell : Structure and Functions>Biomolecules>Proteins

Identify the basic amino acid from the following.

EASY

Biology>Cell : Structure and Functions>Biomolecules>Proteins

Which one of the pairs of amino acids contains two chiral centres?

EASY

Biology>Cell : Structure and Functions>Biomolecules>Proteins

Which of the following is the least likely to be involved in stabilizing the three-dimensional folding of most proteins?

MEDIUM

Biology>Cell : Structure and Functions>Biomolecules>Proteins

In primary structure of protein, the protein thread showed helix with four amino acids

S - C - Y - E

and a naphthalene structure in amino acid

Y .

In such condition what will be the direction of helix and what are the positions of amino acids

MEDIUM

Biology>Cell : Structure and Functions>Biomolecules>Proteins

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

EASY

Biology>Cell : Structure and Functions>Biomolecules>Proteins

Which ONE of the following is likely to occur upon heating a solution of eukaryotic protein from

20 ° C

95 ° C ?

MEDIUM

Biology>Cell : Structure and Functions>Biomolecules>Proteins

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

HARD

Biology>Cell : Structure and Functions>Biomolecules>Proteins

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

EASY

Biology>Cell : Structure and Functions>Biomolecules>Proteins

Which one of the following amino acids is least likely to be in the core of a protein

?

MEDIUM

Biology>Cell : Structure and Functions>Biomolecules>Proteins

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

{Z n}^{2 +} .

iv. Cysteine can be linked to methionine by S-S bond

MEDIUM

Biology>Cell : Structure and Functions>Biomolecules>Proteins

If the acidic, basic and hydrophobic residues of proteins are considered to be red, green and blue in colour, respectively, then a globular protein in aqueous solution would have

EASY

Biology>Cell : Structure and Functions>Biomolecules>Proteins

Among the following, identify the zwitterionic form

EASY

Biology>Cell : Structure and Functions>Biomolecules>Proteins

Amino acid analysis of two globular protein samples yielded identical composition per mole. Which one of the following characteristics is necessarily identical for the two proteins

?

MEDIUM

Biology>Cell : Structure and Functions>Biomolecules>Proteins

Identify the functions of these proteins respectively:

List I	List II
i) Trypsin	A) Enables glucose transport into cells
ii) Receptor	B) Enzymes
iii) Insulin	C) Intercellular ground substance
iv) GLUT-4	D) Hormone
v) Collagen	E) Taste receptor

MEDIUM

Biology>Cell : Structure and Functions>Biomolecules>Proteins

Match the compounds of Column I with their functions in Column II.

	Column -I		Column -II
$1$	Trypsin	p	Fights infectious agents
$2$	GLUT- $4$	q	Is an intercellular ground substance
$3$	Collagen	r	Works as an enzyme
$4$	Antibody	s	Enables glucose transport into cells

HARD

Biology>Cell : Structure and Functions>Biomolecules>Proteins

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

Biology>Cell : Structure and Functions>Biomolecules>Proteins

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

EASY

Biology>Cell : Structure and Functions>Biomolecules>Proteins

Which one of the following statements is wrong?

In which structure of protein only peptide bond is present?

Important Questions on Biomolecules

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