Question

Many pathogens produce cellulolytic, enzymes which act upon the host cell wall. The correct sequence of the given cellulolytic enzymes that are involved in the breakdown of cellulose is?

• A. Cellobiase, $C_1$ enzyme, Cx enzyme
• B. Cellobiase, Cx enzyme, $C_1$ enzyme
• C. $C_1$ enzyme, Cx enzyme, Cellobiase
• D. Cx enzyme, $C_1$ enzyme, Cellobiase

Answer 1

Answer: (C)

$C_1$ enzyme, Cx enzyme, Cellobiase

Enzymatic hydrolysis of cellulose is an important reaction in nature for it marks the first step in the decay of cellulose, the most abundantly occurring organic material by which many pathogens enter the host cell wall. Whitaker (1953-1954) has concluded that his Myrothecium verrucaria cellulase is a single enzyme capable of hydrolyzing native cellulose C1 enzyme followed by Cx enzyme then at last cellobiase . Cellobiase is involved in the last step of the process of breaking down cellulose, a molecule made up of bundled long chains of glucose that are found in plant cell walls, to glucose. This is a natural process that is used by fungi to produce glucose as a food source.

So, the correct option is 'C'.