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Fat is completely digested in the ______.
What is the special name of the contraction and expansion movement which pushes the food further in our digestive tract (or alimentary canal)?
Name the main organs of the human digestive system. Also name the associated glands.
When a person eats sugary food, then organisms A present in his mouth act on sugar to produce a substance B. The substance B first dissolves the calcium salts from the top part C of the tooth and then from its middle part D forming holes E. These holes ultimately reach the part F in the lower part of tooth which contains nerves and blood vessels. The substance B irritates the nerve endings inside the tooth causing toothache.
(a) What are (i) organisms A, and (ii) substance B?
(b) What are (i) part C, and (ii) part D, of tooth known as?
(c) By what name are the holes E in the tooth known?
(d) Name the part F of the tooth.
(e) What will happen if organisms A reach part F of the tooth known?
Prepare a possible vegetarian menu for your dinner which would provide all the necessary nutrients.
Draw a labelled diagram to show the internal structure of a mammalian tooth with two roots.
Name the juice secreted by the liver.
Name the three enzymes found in pancreatic juice.
(i)____ (ii)____ (iii)_____
Given alongside is the diagram of the human alimentary canal.
(i) Name the parts 1-11 indicated by guidelines.
1.____ 2.____ 3.____ 4.____ 5.____ 6.____ 7.____ 8.____ 9.____ 10.___ 11.____
(ii) State the function of the juice secreted by the part 1.
(iii) State the function of the three enzymes found in the juice secreted by part 3.
Food are classified into three groups on the basis of the function they perform in our body. Name the three categories, and briefly give their functions. Also give their two sources each.
Find the odd one out. Give reasons for your choice.
Give reasons for the following.
Meat eating animals have strong canines.
Give reasons for the following:
All teeth in the mouth are not alike.
Define with examples: Heterotrophs
The question has four options. Choose the correct answer:
Trypsin is connected with the digestion of
Who is telling a lie?
Appendix: Digestion is impossible without me.
The exit of unabsorbed food material is regulated by ____________.
Following statements describe animal nutrition. Read the statement and give one word for the statement. Write the terms that describe process.
Breaking of complex food substances into simpler and soluble substances.
Curdling of milk protein is done by ______.
In which layer of the wall of alimentary canal, secretary glands are present?
