AIPMT 2011 Mains | Biomolecules Question 24 | Chemistry

AIPMT 2011 Mains

MCQ (Single Correct Answer)

-1

Which of the statements about ''Denaturation'' given below are correct?

(1)  Denaturation of proteins causes loss of secondary and tertiary structures of the protein.
(2)  Denaturation leads to the conversion of double strand of DND into single strand.
(3)  Denaturation affects primary structure which gets distorted.

(2) and (3)

(1) and (3)

(1) and (2)

(1), (2) and (3)

AIPMT 2011 Prelims

MCQ (Single Correct Answer)

-1

Which one of the following statements is not true regarding (+) lactose?

On hydrolysis (+) lactose gives equal amount of D(+) glucose and D(+) galactose.

(+) Lactose is a $$\beta $$-glucoside formed by the union of a molecule of D(+) glucose and a molecule of D(+) galactose.

(+) Lactose is a reducing sugar and does not exihibit mutarotation.

(+) Lactose, C₁₂H₂₂O₁₁ contains 8-OH groups

AIPMT 2010 Mains

MCQ (Single Correct Answer)

-1

Fructose reduces Tollen's reagent due to

asymmetric carbons

primary alcoholic group

secondary alcoholic group

enolisation of fructose followed by conversion to aldehyde by base

AIPMT 2010 Prelims

MCQ (Single Correct Answer)

-1

Which one of the following does not exhibit the phenomenon of mutaroation?

(+) Sucrose

(+) Lactose

(+) Maltose

($$-$$) Fructose

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