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Question

Which of the following organism is not correctly matched with its cell wall degrading enzyme?


A
Fungi - chitinase
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B
Bacteria - lysozyme
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C
Plant cells - cellulase
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D
Algae - methylase
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Solution

The correct option is B Algae - methylase
  • The main component of the fungal cell wall is chitin. Hence chitinase enzyme is used to degrade the cell walls of fungal cells. 
  • Lysozyme inactivates bacteria by hydrolysis of glucosidic linkages in the peptidoglycan of cell walls. 
  • Cellulase enzymes are used to break down the cellulose of plant cells.
  • The algal cell wall is made up of cellulose and thus can be degraded by the enzyme cellulase. Whereas, methylase is the enzyme that adds a methyl group to the adenine or cytosine residues of DNA or RNA.
So the correct answer is option D.

Biology

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