6
Question
Question 12
Cellulose-rich food substances are good source of roughage in human beings because
(a) Human beings do not have cellulose-digesting enzymes
(b) Cellulose gets absorbed in the human blood and converts into fibres.
(c) The cellulose-digesting bacteria convert cellulose into fibres.
(d) Cellulose breaks down into smaller components which are egested as roughage.
Question 12
Cellulose-rich food substances are good source of roughage in human beings because
(a) Human beings do not have cellulose-digesting enzymes
(b) Cellulose gets absorbed in the human blood and converts into fibres.
(c) The cellulose-digesting bacteria convert cellulose into fibres.
(d) Cellulose breaks down into smaller components which are egested as roughage.
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Solution
The answer is option (a).
Cellulose is a good source of roughage as it does not get digested due to the absence of cellulose-digesting enzymes in the human alimentary canal. It, thus, adds to the volume of undigested food in the form of roughage making the removal of faecal matter easier.
The answer is option (a).
Cellulose is a good source of roughage as it does not get digested due to the absence of cellulose-digesting enzymes in the human alimentary canal. It, thus, adds to the volume of undigested food in the form of roughage making the removal of faecal matter easier.
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