Advertisements
Advertisements
प्रश्न
Which of the following pair of teeth differ in structure but are similar in function?
पर्याय
canines and incisors
molars and premolars
incisors and molars
premolars and canines
Advertisements
उत्तर
molars and premolars
Explanation:
Our teeth cut, tear and grind the food before we swallow it. There are four types of teeth in our mouth –
- Incisors: These are the front eight teeth, four in the upper and four in the lower jaw. These are well adapted for cutting and biting of food items.
- Canines: There are four canines, one canine each on either side of each jaw. These teeth are well adapted to hold and tear the food.
- Premolars: There are eight premolars in total, two premolars in each half of the both upper and lower jaws. These are well adapted to crush and grind food.
- Molars: There are twelve molars, three in each half of the both upper and lower jaws. These are well adapted to crush and grind the food.
APPEARS IN
संबंधित प्रश्न
The main steps of nutrition in humans are ______, ______, ______, ______ and ______.
Match the items of Column I with those given in Column II:
| Column I | Column II |
| Food components | Product(s) of digestion |
| Carbohydrates | Fatty acids and glycerol |
| Proteins | Sugar |
| Fats | Amino acids |
Which of the following are energy foods?
A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains
Name the following :-
Organisms that can prepare their own food
Name the following :-
Organisms that cannot prepare their own food
Name the parts of the alimentary canal where taste of the food is perceived.
Choose the odd one out from the group and give reason.
Tongue is attached at the _____________ to the floor of the mouth cavity and is free at the _____________.
Find out what vitamins are and get the following information.
- Why are vitamins necessary in the diet?
- Which fruits or vegetables should be eaten regularly to get vitamins?
Write a one-page note on the information collected by you. You may take the help of a doctor, a dietician, your teacher or any other person, or from any other source.
