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प्रश्न
Digestion of food starts in ______ and gets completed in ______.
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उत्तर
Digestion of food starts in buccal cavity and gets completed in small intestine.
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संबंधित प्रश्न
Which part of the body secretes bile? Where is bile stored? What is the function of bile?
If the teeth are not cleaned regularly, they become covered with a sticky yellowish layer W of food particles and bacteria. Since layer W covers the teeth, the alkaline liquid X secreted by glands Y inside the mouth cannot reach the teeth surface to neutralise the acid formed by the action of organisms Z on sugary food, and hence tooth decay sets in.
(a) What is W known as?
(b) What is (i) X, and (ii) Y?
(c) What are organisms Z?
(d) State one way of removing layer W from the teeth.
Write the function of the following in the human alimentary canal:
Saliva
Fill in the blank.
Molars are meant for _____ the food.
Define with examples: Omnivores
State one difference in nutrition: Parasite and Saprophyte
Observe the diagram given alongside and answer the following:
- Name the parts numbered 1-8.
- Which parts shown in the diagram are non-living?
- Is the tooth suited for cutting, tearing or grinding?
- What is the function of parts 8 and 7?
- What is the total number of teeth present in adult human beings?
- Write the dental formula of human beings.
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.
The question has four options. Choose the correct answer:
The amount of saliva produced per day in human is
