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Biomolecules · Question 52

AIPMT 2003MCQEasy📈 Topic in 0% papers+4−1
1

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

Answer

(3) oxidation of glucose to pyruvate

Solution

Glycolysis (EMP pathway) is the partial oxidation of one molecule of glucose into two molecules of pyruvic acid in the cytoplasm:

C6H12O6 2CH3COCOOH (with a net gain of 2 ATP and 2 NADH)

Glycolysis is the oxidation of glucose to pyruvate.

Answer: (3)

AIPMT 2003

Keep practising — Biomolecules

2

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
3

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
4

Enzymes are made up of

  1. edible proteins
  2. proteins with specific structure
  3. nitrogen containing carbohydrates
  4. carbohydrates
AIPMT 2002
5

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
6

Cellulose is polymer of

  1. glucose
  2. fructose
  3. ribose
  4. sucrose
Out of syllabusAIPMT 2002
7

Which of the following give positive Fehling solution test?

  1. Sucrose
  2. Glucose
  3. Fats
  4. Protein
AIPMT 2001
8

Which of the following is correct about H-bonding in nucleotide?

  1. A-T, G-C
  2. A-G, T-C
  3. G-T, A-C
  4. A-A, T-T
AIPMT 2001
9

Which of the following is correct?

  1. Cycloheptane is an aromatic compound.
  2. Diastase is an enzyme
  3. Acetophenone is an ether.
  4. All of these.
AIPMT 2001
10

Which is the correct statement?

  1. Starch is a polymer of -glucose.
  2. Amylose is a component of cellulose.
  3. Proteins are composed of only one type of amino acid.
  4. In cyclic structure of fructose, there are four carbons and one oxygen atom.
AIPMT 2001
11

[figure] Which statement is incorrect about peptide bond?

  1. C-N bond length in proteins is longer than usual bond length of N-C bond.
  2. Spectroscopic analysis shows planar structure of [figure] group.
  3. C-N bond length in proteins is smaller than usual bond length of C-N bond.
  4. None of the above.
AIPMT 2001

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