हिंदी

Which part of the digestive canal is involved in: Absorption of food ______.

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प्रश्न

Which part of the digestive canal is involved in:

Absorption of food ______.

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उत्तर

Absorption of food small intestine.

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अध्याय 2: Nutrition in Animals - Exercises [पृष्ठ २१]

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एनसीईआरटी Science [English] Class 7
अध्याय 2 Nutrition in Animals
Exercises | Q 9. (i) | पृष्ठ २१

संबंधित प्रश्न

What causes movement of food inside the alimentary canal?


The length of small intestine in a human adult is about:
(a) 4.5 m
(b) 1.5 m
(c) 3.5 m
(d) 6.5 m


The first enzyme to mix with food in the digestive tract is:

(a) pepsin
(b) cellulose
(c) amylase
(d) trypsin


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.


Name the substance whose build up in the muscles during vigorous physical exercise may cause cramps.


With which human organ system (or human systems) is villi associated?


Define the following term: 

Kilocalorie


Study the following dental formula and then answer the question that follow:

`"i"  3/4   "c"   0/0   "pm"   0/1   "m"   1/1` 

Name an animal possessing such a dentition.


Name the following

The organ where protein digestion-begins


Name the juice secreted by the liver.


Describe the following: Emulsification


Correct the spellings: Disegion


The question has four options. Choose the correct answer:

Trypsin is connected with the digestion of


Circle the odd one.


A calcified connective tissue from which the basic shape of the tooth is derived is known as ______.


Identify which three of the following terminologies is true for human dentition.


Mention the 3 important digestive glands in the process of digestion?


What happens when we swallow our food?


What are villi?


In which layer of the wall of alimentary canal, secretary glands are present?


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