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प्रश्न
Draw a labelled diagram to show the internal structure of a mammalian tooth with two roots.
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उत्तर
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संबंधित प्रश्न
How is the small intestine designed to absorb digested food?
Digestion of starch starts in the stomach.
Define holozoic nutrition. Give one example
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?
Name the following
The organ into which the pancreatic juice and the bile juice are poured
Name the organ where the juice bile is temporarily stored.
Fill in the blanks.
Grinding of food is brought about by _______ and ______
Give reasons for the following:
All teeth in the mouth are not alike.
Complete the following enzymatic reaction.
Sucrose \[\ce{->[sucrase]}\] ___________+ __________
Answer in detail.
What is meant by digestion? How does it differ from nutrition?
Define with examples: Omnivores
State whether the following statements are True or false: Pancreatic amylase digests protein into amino acids.
Describe the process of digestion in human beings.
The question has four options. Choose the correct answer:
Stomach in vertebrates is the chief site of digestion of
The question has four options. Choose the correct answer:
Teeth present in the upper molar of human beings are
The question has four options. Choose the correct answer:
The hardest constituent of the tooth is
Observe the diagram. This is the histological structure of the stomach. Identify and comment on the significance of the layer marked by an arrow.
Circle the odd one.
A gland not associated with the alimentary canal is ____________.
Identify the option that indicates the correct enzyme that is secreted in location A, B and C.
