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Biomolecules · Question 63

AIPMT 2000MCQEasy📈 Topic in 25% papers+4−1
1

-D-glucose and -D-glucose are

  1. epimers
  2. anomers
  3. enantiomers
  4. diastereomers

Answer

(2) anomers

Solution

α-D-glucose and β-D-glucose are the two cyclic (pyranose) forms of D-glucose; they differ only in the configuration of the –OH group at C1, the anomeric (hemiacetal) carbon.

∵ As per NCERT, such isomers, i.e. the α-form and the β-form, are called anomers.

Answer: (2)

AIPMT 2000

Keep practising — Biomolecules

2

Which one is responsible for production of energy in bio-reaction?

  1. Thyroxine
  2. Adrenaline
  3. Oestrogen
  4. Progesterone
AIPMT 2000
3

How do enzymes increase the rate of reactions?

  1. by lowering activation energy
  2. by increasing activation energy
  3. by changing equilibrium constant
  4. by forming enzyme substrate complex.
AIPMT 2000

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