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Biomolecules · Question 46

AIPMT 2004MCQEasy📈 Topic in 0% papers+4−1
1

The hormone that helps in the conversion of glucose to glycogen is

  1. cortisone
  2. bile acids
  3. adrenaline
  4. insulin

Answer

(4) insulin

Solution

As per NCERT, insulin (from the pancreas) lowers the blood glucose level by promoting the conversion of glucose into glycogen (stored in liver and muscles).

Glucagon and adrenaline act the other way (glycogen → glucose); cortisone is a glucocorticoid and bile acids are not hormones.

Answer: (4)

AIPMT 2004

Keep practising — Biomolecules

2

The correct statement in respect of protein haemoglobin is that it

  1. functions as a catalyst for biological reactions
  2. maintains blood sugar level
  3. acts as an oxygen carrier in the blood
  4. forms antibodies and offers resistance to diseases.
AIPMT 2004
3

Number of chiral carbons in -D-(+)-glucose is

  1. five
  2. six
  3. three
  4. four
AIPMT 2004
4

The helical structure of protein is stabilised by

  1. dipeptide bonds
  2. hydrogen bonds
  3. ether bonds
  4. peptide bonds
AIPMT 2004
5

Which of the following structures represents the peptide chain?

  1. [figure]
  2. [figure]
  3. [figure]
  4. [figure]
AIPMT 2004
6

The enzyme which hydrolyses triglycerides to fatty acids and glycerol is called

  1. maltase
  2. lipase
  3. zymase
  4. pepsin
Out of syllabusAIPMT 2004
7

Glycolysis is

  1. oxidation of glucose to glutamate
  2. conversion of pyruvate to citrate
  3. oxidation of glucose to pyruvate
  4. conversion of glucose to haem
AIPMT 2003
8

Phospholipids are esters of glycerol with

  1. three carboxylic acid residues
  2. two carboxylic acid residues and one phosphate group
  3. one carboxylic acid residue and two phosphate groups
  4. three phosphate groups
AIPMT 2003
9

Chargaff's rule states that in an organism

  1. amount of adenine (A) is equal to that of thymine (T) and the amount of guanine (G) is equal to that of cytosine (C)
  2. amount of adenine (A) is equal to that of guanine (G) and the amount of thymine (T) is equal to that of cytosine (C)
  3. amount of adenine (A) is equal to that of cytosine (C) and the amount of thymine (T) is equal to that of guanine (G)
  4. amounts of all bases are equal
AIPMT 2003
10

Enzymes are made up of

  1. edible proteins
  2. proteins with specific structure
  3. nitrogen containing carbohydrates
  4. carbohydrates
AIPMT 2002
11

Which is not a true statement?

  1. -carbon of -amino acid is asymmetric
  2. All proteins are found in L-form
  3. Human body can synthesise all proteins it needs
  4. At pH = 7, both amino and carboxylic groups exist in ionised form
AIPMT 2002

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