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Biomolecules · Question 27

AIPMT 2012 (Prelims)MCQEasy📈 Topic in 25% papers+4−1
1

Deficiency of vitamin B1 causes the disease

  1. convulsions
  2. beri-beri
  3. cheilosis
  4. sterility

Answer

(2) beri-beri

Solution

As per NCERT (Table: vitamins and their deficiency diseases):

Vitamin B1 (thiamine) – beri-beri (loss of appetite, retarded growth)

Vitamin B2 (riboflavin) – cheilosis

Vitamin B6 (pyridoxine) – convulsions

Vitamin E – sterility (increased fragility of RBCs, muscular weakness)

Answer: (2)

AIPMT 2012 (Prelims)

Keep practising — Biomolecules

2

Which one of the following sets of monosaccharides forms sucrose?

  1. -D-galactopyranose and -D-glucopyranose
  2. -D-glucopyranose and -D-fructofuranose
  3. -D-glucopyranose and -D-fructofuranose
  4. -D-glucopyranose and -D-fructopyranose
AIPMT 2012 (Prelims)
3

Which of the following is not a fat soluble vitamin?

  1. Vitamin B complex
  2. Vitamin D
  3. Vitamin E
  4. Vitamin A
AIPMT 2011 (Mains)
4

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

  1. B and C
  2. A and C
  3. A and B
  4. A, B and C
AIPMT 2011 (Mains)
5

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

  1. On hydrolysis (+) lactose gives equal amount of D(+) glucose and D(+) galactose.
  2. (+) Lactose is a -glucoside formed by the union of a molecule of D(+) glucose and a molecule of D(+) galactose.
  3. (+) Lactose is a reducing sugar and does not exhibit mutarotation.
  4. (+) Lactose, C12H22O11 contains 8 –OH groups
AIPMT 2011 (Prelims)
6

Fructose reduces Tollens' reagent due to

  1. asymmetric carbons
  2. primary alcoholic group
  3. secondary alcoholic group
  4. enolisation of fructose followed by conversion to aldehyde by base
AIPMT 2010 (Mains)
7

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

  1. (+) Sucrose
  2. (+) Lactose
  3. (+) Maltose
  4. (−) Fructose
AIPMT 2010 (Prelims)
8

The segment of DNA which acts as the instructional manual for the synthesis of the protein is

  1. ribose
  2. gene
  3. nucleoside
  4. nucleotide
AIPMT 2009
9

Which of the following hormones contains iodine?

  1. Testosterone
  2. Adrenaline
  3. Thyroxine
  4. Insulin
AIPMT 2009
10

In DNA, the complementary bases are

  1. adenine and guanine; thymine and cytosine
  2. uracil and adenine; cytosine and guanine
  3. adenine and thymine; guanine and cytosine
  4. adenine and thymine; guanine and uracil.
AIPMT 2008
11

Which of the following is an amine hormone?

  1. Insulin
  2. Progesterone
  3. Thyroxine
  4. Oxypurine
AIPMT 2008

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