MCQs of Biomolecules

Biomolecules MCQs

MCQs of Biomolecules

Showing 51 to 60 out of 161 Questions

51.

D stands for what in

[α]_{D}^{T}

(a)	Observed angle of rotation (by polarimeter)
(b)	Density of the substance
(c)	Wavelength of sodium light
(d)	length of tube (in decimeter)

52.

[α]_{D}^{T}

= _____

(a)	$\frac{α_{obs}}{l \times C}$
(b)	$\frac{α_{obs} \times C}{l}$
(c)	$\frac{α_{obs \times l}}{C}$
(d)	$\frac{α_{obs \times C^{2}}}{\sqrt{l}}$

53.

Generally in which unit the length of polarimeter is indicated ?

(a)	Millimeter
(b)	Decameter
(c)	Decimeter
(d)	Ketometer

54.

The observed angle of rotation of 2·0 g of sucrose in 10 ml of aqueous solution in a polarimeter tube 10 cm long is + 13·3°. What is the specific rotation of the solution of sucrose ?

(a)	+ 66·5°
(b)	- 66·5°
(c)	+ 6·65°
(d)	- 13·3°

55.

Which saccharide having highest sweetness ?

(a)	Sucrose
(b)	Glucose
(c)	Lactose
(d)	Fructose

56.

Two monosaccharides units are linkage with _____ in maltose

(a)	C1-O-C2
(b)	C1-O-C4
(c)	C1-O-C5
(d)	C1-O-C3

57.

Which has very high molecular mass ?

(a)	Glucose
(b)	Cellulose
(c)	Lactose
(d)	Sucrose

58.

α-helix is _____

(a)	primary structure of protein
(b)	secondary structure of protein
(c)	tertiary structure of protein
(d)	quarternary structure of protein

59.

Which product is obtained by hydrolysis of protein ?

(a)	Amino acid
(b)	Catalyst
(c)	Lipid
(d)	Fat

60.

Which of the following is a nonessential amino acid ?

(a)	Phenyl alanine
(b)	Alanine
(c)	Lucine
(d)	Isolucine

Showing 51 to 60 out of 161 Questions