Asked Feb 11, 2019

What kind of protein is lactase, the biomolecule that speeds up the breakdown of lactose?


Expert Answer

Step 1

Proteins are bimolecules as well as biopolymers composed of amino acids as their monomeric units.

Step 2

Proteins serve various functions in the body of organism. On basis of those functions, proteins are classified as:

  • Structural proteins: these make up the structure of organism. Eg Collagen, Keratin
  • Contractile proteins: these are involved in locomotion by causing contraction and relaxation of muscles. Eg. Actin, Myosin
  • Respiratory proteins: these are involved in gaseous transport. Eg. Hemoglobin, myoglobin.
  • Hormonal proteins: these act as hormones. Eg. Insulin, Oxytocin
  • Storage proteins: these store certain substances. Eg. Ferritin, Albumin
  • Enzymatic proteins: these act as enzymes and speed up biochemical reactions. Eg. Amylase, lactase
Step 3

Lactase speeds up the breakdown of lactose. As it is involved in catalysing (speeding up)  a biochemical &...

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