Nutrition in Animals Test

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Nutrition in Animals Test - 21

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Weekly Quiz Competition

Question 1
1 / -0

The first set of teeth are called ___________.

A
Milk teeth

B
Temporary teeth

C
Both A and B

D
Permanent teeth
Solution
Human teeth have two sets of teeth during their life i.e, one temporary set of milk and one permanent set.
The temporary teeth or milk teeth are the first set of teeth that are replaced by permanent teeth upon the age of 12 years.
So the first set of teeth are called temporary or milk teeth.
So the correct answer is C.
Question 2
1 / -0

An adult human has_______ teeth.

A
32

B
16

C
28

D
14
Question 3
1 / -0

Man bears $4$ kinds of teeth from front to the back of the jaw. Choose the correct order from the following.

A
(i)- Incisor, (ii)- Canine, (iii)- Premolars, (iv)- Molars

B
(i)- Molars, (ii)- Canine, (iii)- Premolars, (iv)- Incisor

C
(i)- Molars, (ii-) Canine, (iii)- Incisor, (iv)- Premolars

D
(i)- Incisor, (ii)- Premolars, (iii)- Molars, (iv)- Incisor
Solution
- Incisors are the most anterior teeth.
- Canines - all mammals have a single canine in each quadrant.
- The premolars lie immediately posterior to the canines.
- In the upper jaw, they are found in the maxillary.
- The most posterior teeth in the jaws of most mammals are molars.
- Humans have two incisors, one canine, two premolars, and three molars, I2 C1 P2 M3, in each quadrant of their upper jaws.
- The numbers for each quadrant of the lower jaw are the same, and the general formula is written I2/2 C1/1 P2/2 M3/3.
So, the correct answer is option A.
Question 4
1 / -0

Cellulose in plant foods can be digested by

A
Pigeons

B
Cows

C
Cats

D
Bears
Solution
A cow has sac-like rumen which has bacteria that synthesize cellulase enzyme. This enzyme helps in the digestion of the cellulose present in grasses.
So, the correct answer is 'Cows'.
Question 5
1 / -0

Humans cannot digest cellulose like cattle do because:

A
They have a smaller stomach.

B
They do not have cellulose-digesting bacteria in their stomach.

C
They do not consume cellulose.

D
They have less digesting capacity than ruminants.

Solution

Food is stored in the plants as cellulose. Cellulase is an enzyme synthesized by bacteria in stomach of ruminant which is used to digest cellulose. Humans do not have cellulase and hence they cannot digest cellulose.
So, the correct answer is option B.
Question 6
1 / -0

The cud is brought back to the mouth during digestion in ruminants. This is called as

A
Ingestion

B
Regurgitation

C
Egestion

D
Absorption

Solution

Ruminants have 4-chambered stomach. Reticulum is a part of ruminant's stomach that allow the animal to regurgitate the cud, to reprocess particulate matter and chew the cud again.
So the correct answer is 'Regurgitation'.
Question 7
1 / -0

The digestive system of cows is made up of

A
Oesophagus

B
Small and large intestine

C
4 chambered stomach

D
All of the above

Solution

The digestive system of cow is made up of oesophagus, 4-chambered stomach and small and large intestine. The food is passed through oesophagus from mouth to the stomach. The cow has 4-chambered stomach that digest and process the food and then pass it on the small and large intestine for absorption.
So the correct answer is 'All of the above'.
Question 8
1 / -0

Why cannot ruminants chew food at the same time they take in?

A
Grass does not taste good.

B
Grass contains cellulose that cannot be digested easily.

C
The grass is hard in structure.

D
Ruminants eat a lot of grass at the same time.

Solution

Ruminants are the herbivores and eat grasses. Grasses contains cellulase as their stored food. Cellulose needs an enzyme called cellulase for its digestion which is present in the rumen. Ruminants do not chew their food at the same time they take in as they require the fermented cud to be regurgitated and chewed.
So the correct answer is 'Grass contains cellulose that cannot be digested easily'.
Question 9
1 / -0

The teeth placed at the end of the buccal cavity and help in chewing food are which of the following?

A
Incisors

B
Molars

C
Canines

D
Premolars

Solution

The most posterior teeth in the mouth are the molars. They have broader and flatter surfaces with 4-5 cusps. They help in chewing and grinding the food.
So the correct answer is 'Molars'.
Question 10
1 / -0

Cattle can easily digest cellulose due to

A
Cellulose digesting bacteria in their gut

B
Complex digestive system

C
Small intestine

D
Small liver and stomach

Solution

Cellulose consists of subunits connected together by covalent bonds. In the case of cellulose the subunits are the simple sugar glucose and they are connected by a very specific bond, called a beta-1,4-glycosidic bond. Humans lack enzymes to break this kind of chemical bond and therefore cannot digest cellulose. Cows, and other ruminants like deer, camels, and water buffalo, have microorganisms in their guts, which express enzymes capable of breaking down cellulose.

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Nutrition in Animals Test - 21

Result

Nutrition in Animals Test - 21

Score

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SHARING IS CARING

Question 1

Milk teeth

Temporary teeth

Both A and B

Permanent teeth

Solution

Question 2

32

16

28

14

Question 3

(i)- Incisor, (ii)- Canine, (iii)- Premolars, (iv)- Molars

(i)- Molars, (ii)- Canine, (iii)- Premolars, (iv)- Incisor

(i)- Molars, (ii-) Canine, (iii)- Incisor, (iv)- Premolars

(i)- Incisor, (ii)- Premolars, (iii)- Molars, (iv)- Incisor

Solution

Question 4

Pigeons

Cows

Cats

Bears

Solution

Question 5

They have a smaller stomach.

They do not have cellulose-digesting bacteria in their stomach.

They do not consume cellulose.

They have less digesting capacity than ruminants.

Solution

Question 6

Ingestion

Regurgitation

Egestion

Absorption

Solution

Question 7

Oesophagus

Small and large intestine

4 chambered stomach

All of the above

Solution

Question 8

Grass does not taste good.

Grass contains cellulose that cannot be digested easily.

The grass is hard in structure.

Ruminants eat a lot of grass at the same time.

Solution

Question 9

Incisors

Molars

Canines

Premolars

Solution

Question 10

Cellulose digesting bacteria in their gut

Complex digestive system

Small intestine

Small liver and stomach

Solution

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