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प्रश्न
Fill in the blank.
In an adult human, there are a total of ___ teeth.
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उत्तर
In an adult human, there are a total of 32 teeth.
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संबंधित प्रश्न
Name any four life processes in living things.
Name the substance on which the following enzymes act in the human digestive system:
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. |
- What is W known as?
- What are (i) X and (ii) Y?
- What are organisms Z?
- State one way of removing layer W from the teeth.
Write one function each of the following enzymes:
Pepsin
State one difference in nutrition: Autotroph and Heterotroph
Name different steps involved in animal nutrition. Explain.
Which systems work together to provide the body with energy?
Use your brain power!
Why do we sometimes choke suddenly while eating?
State whether true or false. If false, correct the statement.
During digestion, proteins are broken down into amino acids.
A fluid containing the digestive enzyme ____________ is secreted by the serous cells of salivary gland.
