Chemistry - Bio-Molecules : Structure and functions and chemistry of some biological Process

Question - 1

Glucose on reduction with sodium-amalgam in aqueous solution gives

  • A manitol
  • B sorbitol
  • C monnitol and sorbitol both
  • D NONE OF THE ABOVE

Question - 2

Glucose can be converted to fructose through 

  • A phenyl hydrazone formation
  • B oxime formation
  • C osazone formation, subsequent hydrolysis and reduction
  • D NONE OF THE ABOVE

Question - 3

Carbohydrates are stored in body as 

  • A glucose
  • B glycogen
  • C starch
  • D monosaccharides

Question - 4

Which one of the following hormons contains iodine?

  • A tyroxine
  • B estrogen
  • C adrenaline
  • D insulin

Question - 5

The sweetest sugar is 

  • A sucrose 
  • B glucose
  • C maltose
  • D fructose

Question - 6

Which one of the following is a poor auality protein?

  • A casein of milk
  • B glutenin of wheat
  • C albumin of egg
  • D fish

Question - 7

The first hormone synthesised in the laboratory was 

  • A andrenaline
  • B estrone and estradiol 
  • C cortisone 
  • D insulin

Question - 8

Generally proteins contain more than 

  • A \(50\ \alpha \) - amino acids
  • B \(100\ \alpha \) - amino acids
  • C \(60\ \alpha \) - amino acids​​​​​​
  • D \(75\ \alpha \) - amino acids​​​​​​

Question - 9

The approximate molecular weight of casein in amu is 

  • A 75000
  • B 68000
  • C 39000
  • D 35100

Question - 10

In the stomach proteins are hydrolysed by the operation of enzyme pepsin and Hto yield

  • A polypeptides
  • B peptones
  • C proteoses
  • D \(\quad \alpha -aminoacids\)
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