Types of Teeth

Q.

Observe the teeth of the tiger in the image and name the type of teeth which are used to puncture and tear flesh.

1. Canines

2. Premolars

3. Molars

4. Incisor

Q.

Study the following dental formula and then answer the questions that follow :

$i\frac{3}{4}$ $c\frac{0}{0}$ $pm\frac{0}{1}$ $m\frac{1}{1}$

(a) State the total number of teeth present in the dentition.

(b) Is the dentition that of a carnivore or herbivore ? Give a reason to support your answer.

(c) Name an animal possessing such a dentition.

(d) Give the dental formula of an adult human being.

Q.

Which one of the following pairs of types of teeth perform one common function as stated against it ?

(a) Incisors, canines - Holding

(b) Canines, premolars - Tearing

(c) Premolars, molars - Grinding

(d) Molars, incisors - Tearing

Q.

The following picture shows the different types of teeth present in your mouth. From the given options, select the one which matches with their name and function.

1. A -Incisor-Cutting and biting, B-Canines- Chewing and grinding, C-Premolars-Chewing and grinding, D-Molars- Piercing and tearing

2. A -Incisor-Cutting and biting, B-Canines-Piercing and tearing, C-Premolars-Chewing and grinding, D-Molars-Chewing and grinding

3. A -Incisor- Chewing and grinding, B-Canines-Piercing and tearing, C-Premolars- Cutting and biting, D-Molars-Chewing and grinding

4. A -Incisor- Chewing and grinding, B-Canines- Chewing and grinding, C-Premolars- Piercing and tearing, D-Molars- Cutting and biting

Q. Mention two ways in which the ileum of a mammal is adapted for the absorption of digested food. ​

Q. When teeth are different in shape, size and function, then these are called ___

1. thecodant
2. deciduous
3. none of these
4. heterodant

Q.

what are the function of canines in humans ?

Q. Mouth parts of housefly are called as

1. Biting and sucking type
2. Sponging and sucking type
3. Sponging and chewing type
4. Biting and chewing type

Q. Carnivorous animals use these teeth to tear flesh.

1. Canines
2. Incisors
3. Molars
4. Premolars

Q.

Identify the correct dental formula of a human child from the options given below

1. 2/2, 1/1, 2/2, 2/2

2. 2/2, 1/1, 2/2, 0/0

3. 2/2, 1/1, 2/2, 3/3

4. 2/2, 1/1, 1/1, 2/2

Q.

Teeth formed only once during the lifetime in humans

1. Incisors

2. Canines

3. Premolars

4. Molars

Q.

Identify the correct dental formula of a human child from the options given below.

1. 2/2, 1/1, 1/1, 2/2

2. 2/2, 1/1, 2/2, 2/2

3. 2/2, 1/1, 2/2, 0/0

4. 2/2, 1/1, 2/2, 3/3

Q. 'Siphoning' type mouth parts are seen in:

1. Cockroach
2. Butterfly
3. Honeybee
4. Silverfish

Q. The peristome of Funaria has

1. 4 teeth in one ring
2. 32 teeth in 2 rings
3. 15 teeth in one rings
4. 16 teeth in 2 rings

Q.

_________ and _______ are very common problems of teeth.

Q. The correct dental formula for human beings is:

1. 2.1.2.3
2. 2.2.1.3
3. 1.2.3.1
4. 1.2.3.4

Q. Why are the last molars in each jaw called the wisdom teeth?