Nutrition in Animals Test

Result

Nutrition in Animals Test - 9

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Weekly Quiz Competition

Question 1
1 / -0

Permanent teeth start their appearance in children at the age of ......... years.

A
4

B
6

C
10

D
12

Solution

The arrival of permanent teeth occurs at 6 years +/- 6 months. With the exception of the wisdom teeth, the last of the secondary teeth come in around 12 years of age.
Question 2
1 / -0

Amount of water in enamel is:

A
90 - 92%

B
75 - 80%

C
40 - 50%

D
$$\approx $$ 3%

Solution

Enamel is the hardest material in the animal kingdom. Enamel is ectodermal. It is secreted by Ameloblast cells of the ectoderm. lt has the maximum amount of inorganic salt (96%) in It. Along with inorganic salts found in the form of phosphate and carbonate of Ca, Mg, Na, and K, 3% of water is present in the enamel.
Thus, the correct answer is option D.
Question 3
1 / -0

Herbivorous animals can digest cellulose because

A
Their molar and premolar teeth can crush and grind the food.

B
Bacteria present in their caecum help in digestion of cellulose.

C
Gastric juice has a digestive enzyme for cellulose digestion.

D
Alimentary canal is short.

Solution

All herbivores eat grasses and other plant material. Plants contain cellulose, which is very hard to digest. So, when a herbivore swallows some grass, the chewed grass first enters the compartment of the stomach called the rumen. The rumen contains a salty solution and bacteria that helps to break down the cellulose.
Question 4
1 / -0

Number of teeth in man which grow twice are

A
4

B
8

C
12

D
28

E
20

Solution

Humans, like other mammals, are diphyodont, meaning that they develop two sets of teeth. Among deciduous (primary) teeth, ten are found in the maxilla (upper jaw) and ten in the mandible (lower jaw), for a total of 20. The dental formula for primary teeth is 2.1.2/2.1.2.
Question 5
1 / -0

In the above diagram, the teeth marked B represent

A
Incisors

B
Canines

C
Molars

D
Premolars

Solution

The teeth marked B represent canines. Canines are pointed and occurs next to the incisors. It helps in hold and tears the food. They are four in number in humans. In predators like lion, cat, and dog canines are very large in size. Hence, the correct option is B.
Question 6
1 / -0

The teeth used to grind are marked as

A
C and D

B
A and B

C
D and H

D
D and E

Solution

Teeth present after premolars and the back of the mouth are called molar teeth. It has a groove and broad tops and helps in grinding the food. They are 12 in number but the last molar is known as wisdom tooth which is of no use and considers as a vestigial. Thus, the correct answer is D.
Question 7
1 / -0

Teeth marked III are also called

A
Cracking teeth

B
Molars

C
Learing teeth

D
Canines
Solution
Incisors: The middlemost four teeth on the upper and lower jaws.
Canines: The pointed teeth just outside the incisors.
Premolars: Teeth between the canines and molars. premolars are also called as cracking teeth. Hence, Teeth marked III are also called Cracking teeth.
So, the correct answer is 'cracking teeth'.
Question 8
1 / -0

Dentine is

A
Hard, protective covering on the heart.

B
The cavity which contains nerves and blood vessels in a tooth.

C
The soft, invisible covering present in a tooth.

D
The nerve that connects tooth and the brain.
Question 9
1 / -0

How many chambers present in stomach of ruminating mammals?

A
Four

B
Five

C
Three

D
Two

Solution

The ruminant stomach is composed of 4 separate compartments. Food passes first into the 'rumen', then 'reticulum', 'omasum' and finally into the 'abomasum'. The first three compartments helps in digestion of complex carbohydrates with the aid of microorganisms, which produce volatile fatty acids. The abomasum functions similarly to the carnivore stomach as it is glandular and digests food chemically, rather than mechanically or by fermentation like the other 3 chambers of the ruminant stomach. Hence, option A is correct.
Question 10
1 / -0

........ is a cud chewing animal.

A
Cow

B
Horse

C
Pig

D
Rhinoceros

Solution

Cud is a partially digested portion of food that returns from a ruminant's stomach to the mouth to be chewed for the second time.
Out of the given options, the cow is a ruminant animal.
Hence, option A is correct.

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Re-Attempt Weekly Quiz Competition

Nutrition in Animals Test - 9

Result

Nutrition in Animals Test - 9

Score

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Rank

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SHARING IS CARING

Question 1

4

6

10

12

Solution

Question 2

90 - 92%

75 - 80%

40 - 50%

$$\approx $$ 3%

Solution

Question 3

Their molar and premolar teeth can crush and grind the food.

Bacteria present in their caecum help in digestion of cellulose.

Gastric juice has a digestive enzyme for cellulose digestion.

Alimentary canal is short.

Solution

Question 4

4

8

12

28

20

Solution

Question 5

Incisors

Canines

Molars

Premolars

Solution

Question 6

C and D

A and B

D and H

D and E

Solution

Question 7

Cracking teeth

Molars

Learing teeth

Canines

Solution

Question 8

Hard, protective covering on the heart.

The cavity which contains nerves and blood vessels in a tooth.

The soft, invisible covering present in a tooth.

The nerve that connects tooth and the brain.

Question 9

Four

Five

Three

Two

Solution

Question 10

Cow

Horse

Pig

Rhinoceros

Solution

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