Question

(ii) secretion of mucus which helps in adhering the
undigested)
particles together and lubricating it for an easy passage.
The undigested, unabsorbed substances called faeces enters into the caecum
of the large intestine through leo-caecal valve, which prevents the back flow of
the faecal matter. It is temporarily stored in the rectum till defaecation.
The activities of the gastro-intestinal tract are under neural and
hormonal control for proper coordination of different parts. The sight, smell
and/or the presence of food in the oral cavity can stimulate the secretion of
saliva. Gastric
and intestinal secretions are also, similarly, stimulated by
neural signals. The muscular activities of different parts of the alimentary
canal can also be moderated by neural mechanisms, both local and through
CNS. Hormonal control of the secretion of digestive juices is carried out by
local hormones produced by the gastric and intestinal mucosa.
CALORIFIC VALUE OF PROTEIN, CARBOHYDRATE AND FAT
(Boxed Item Not for evaluation)
The energy requirements of animals, and the energy content of food, are
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Answer 1

Answer:

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