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Question
In cockroach enzyme cellulase is produced by
In cockroach enzyme cellulase is produced by
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Solution
The correct option is C Bacteria in midgut
Cellulase occurs in the
American cockroach and originates in two foci: the salivary glands and the
lumen of the midgut and caeca. The salivary glands are the only tissue of the
alimentary tract to secrete cellulase, whereas the microflora generates it in the
gut. The content of cellulase was very low in the faeces of young
larvae but increased with age. Males excrete more cellulase than
females. Although females on a complete diet consume additional cellulose in
the form of filter paper, whereas males do not, this does not seem to affect
the excretion of cellulase. So, the correct answer is
‘Bacteria in midgut’.
Cellulase occurs in the American cockroach and originates in two foci: the salivary glands and the lumen of the midgut and caeca. The salivary glands are the only tissue of the alimentary tract to secrete cellulase, whereas the microflora generates it in the gut. The content of cellulase was very low in the faeces of young larvae but increased with age. Males excrete more cellulase than females. Although females on a complete diet consume additional cellulose in the form of filter paper, whereas males do not, this does not seem to affect the excretion of cellulase. So, the correct answer is ‘Bacteria in midgut’.
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