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प्रश्न
State whether the following statement is True or False.
Wisdom tooth appears at the age of 5-6 years when the child starts going to school.
विकल्प
True
False
उत्तर
False
APPEARS IN
संबंधित प्रश्न
What is the function of digestive enzymes?
What causes movement of food inside the alimentary canal?
Pancreatic juice contains enzymes which digest:
(a) proteins and carbohydrates only
(b) proteins and fats only
(c) fats and carbohydrates only
(d) proteins, fats and carbohydrates
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?
The stomach secretes gastric juice, which contains hydrochloric acid. What is its function?
Study the diagram given below and then answer the question that follows:
Give the total number of the type of tooth mentioned in '1' above, in the mouth of an adult and state its function.
Name the juice secreted by the liver.
Define the following term:
assimilation
Write true or false for the below statement. Rewrite the false statements correctly.
The removal of faeces through the anus is called excretion.
Match the two columns and select correct option.
| Column - I | Column - II | ||
| i. | Sphincter of Oddi | a. | Oesophagus and stomach |
| ii. |
Ileo-caecal sphincter |
b. | Stomach and small intestine |
| iii. | Pyloric sphincter | c | Ileum and caecum |
| iv. |
Gastro-oesophageal sphincter |
d. | Opening of hepato- pancreatic duct |
