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प्रश्न
Cellulose-rich food substances are good source of roughage in human beings because ______.
पर्याय
human beings do not have cellulose-digesting enzymes.
cellulose gets absorbed in the human blood and converts into fibres.
the cellulose-digesting bacteria convert cellulose into fibres.
cellulose breaks down into smaller components which are egested as roughage.
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उत्तर
Cellulose-rich food substances are good source of roughage in human beings because human beings do not have cellulose-digesting enzymes.
Explanation:
Human beings do not have cellulose-digesting enzymes in their bodies and are therefore unable to digest cellulose. Since it is not digested, it passes down the entire digestive tract from mouth to anus. It acts as roughage, adds bulk to the food and helps the body to easily get rid of undigested food.
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संबंधित प्रश्न
Which part of the digestive canal is involved in:
Complete digestion of food ______.
The process of digestion in humans is completed in:
(a) oesophagus
(b) small intestine
(c) stomach
(d) large intestine
Pancreatic juice contains enzymes which digest:
(a) proteins and carbohydrates only
(b) proteins and fats only
(c) fats and carbohydrates only
(d) proteins, fats and carbohydrates
If the saliva is lacking in salivary amylase, then which of the following processes taking place in the buccal cavity will be affected?
(a) proteins breaking down into amino acids
(b) starch breaking down into sugars
(c) fats breaking down into fatty acids and glycerol
(d) intestinal layer breaking down leading to ulcers
Study the following dental formula and then answer the question that follow:
`"i" 3/4 "c" 0/0 "pm" 0/1 "m" 1/1`
State the total number of teeth present in the dentition.
Write short answers
Write the names of three enzymes which are found in pancreatic juice.
Complete the following enzymatic reaction.
Fats \[\ce{->[lipase]}\] ___________+__________
Define with examples: Herbivores
State whether the following statements are True or false: Enteropeptidase activates pepsinogen into pepsin.
State whether the following statements are True or false: Pancreatic amylase digests protein into amino acids.
State whether the following statements are True or false: Na+ is absorbed in intestine by sodium pump.
Correct the spellings: HLC
Name the salivary glands in our mouth?
The process of digestion is completed by:
The digestive glands associated with the alimentary canal are ______.
In which of the following groups of organisms, food material is broken down outside the body and absorbed?
What is the significance of the emulsification of fats?
Digestion of food starts in ______ and gets completed in ______.
______ is the vestigeal organ in human.
In human beings, when the process of digestion is completed, the (i) proteins, (ii) carbohydrates and (iii) fats are respectively finally converted into ______.
