Nutrition in Animals Test

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Nutrition in Animals Test - 8

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Question 1
1 / -0

The digestive tracts of ruminants contain:

A
Salt loving bacteria

B
Heat loving bacteria

C
Methanobacteria

D
Mycoplasma
Solution
- Some microbes like methanobacteria live a symbiotic relationship with ruminants and are found in their rumen.
- These methanobacteria help the ruminants in the digestion of cellulose and hemicellulose in food.
Thus, the correct answer is option C.
Question 2
1 / -0

The wall of the stomach is protected against the action of HCl by:

A
Pepsin

B
Bile juice

C
Mucus

D
Saliva

Solution

HCl is produced in the stomach to digest food. HCl is highly acidic. Mucus protects the lining of the stomach from the harsh acidic conditions created by the HCl.
Hence, the correct answer is option C.
Question 3
1 / -0

Wisdom teeth in human is

A
$$3^{rd}$$molar and 4 in number

B
$$3^{rd}$$ molar and 2 in number

C
$$2^{nd}$$molar and 4 in number

D
$$2^{nd}$$ molar and 2 in number
Solution
- In the permanent dentition of a human, there are normally 28 teeth before his/her twenties that include 8 incisors, 4 canines, 8 premolars, and 8 molars.
- Wisdom teeth (4 in number) are the third and final set of molars that most people get in their late teens or early twenties.
- After which the number of molars will be 12 while the total number of teeth will be 32.
So, the correct answer is option A.
Question 4
1 / -0

Assertion : Rumen of alimentary canal of ruminant
                        animals harbour numerous bacteria and
                     protozoa

Reason : Bacteria and protozoa help in the secretion
                        of gastric juice in the rumen.

A
If both the assertion and the reason are true and the reason

is a correct explanation of the assertion

B
If both the assertion and reason are true but the reason is

not a correct explanation of the assertion

C
If the assertion is true but the reason is false

D
If both the assertion and reason are false

E
If the assertion is false but reason is true
Question 5
1 / -0

Which set of human teeth help in cutting food?

A
Canine

B
Incisor

C
Molar

D
Premolar

Solution

The four front teeth in each arch are called incisors, and their function is to cut food with their sharp thin edges.
Question 6
1 / -0

Rumen of a cow is a part of its:

A
Intestine

B
Stomach

C
Caecum

D
Rectum

Solution

Ruminants (cattle, sheep, deer, etc.) are hooved animals with a stomach divided into four chambers - rumen, reticulum, omasum and abomasum. Symbiotic bacteria and protists living in the first two chambers digest cellulose, splitting some of it into sugars, which are then used by the host and the bacteria themselves. The bacteria produce fatty acids during their metabolism, some of which are absorbed by the animal and serve as an important energy source. Food that is not sufficiently chewed clumps together, forming a cud. The cud is regurgitated into the animals mouth, where it is mixed with saliva and chewed again. When the cud is swallowed again, the partly digested food is further broken down by the animal's own enzymes.
So, the correct answer is option B.
Question 7
1 / -0

________ and ________ are used for chewing and grinding food.

A
Incisors and canines

B
Canines and premolars

C
Premolars and molars

D
Canines and molars

Solution

Premolars and molars are found at the back of the mouth. The purpose of premolars and molars is to chew and grind down food into smaller particles.
Incisors are used for biting the food and canines are used for tearing the food.
Hence, the correct answer is option C.
Question 8
1 / -0

The hardest constituent of the tooth is:

A
Enamel

B
Dentine

C
Bone

D
Pulp

Solution

Enamel is the hardest substance in the human body and contains the highest amount of minerals. It contains 96% minerals with water and organic materials.
So, the correct answer is option A.
Question 9
1 / -0

Intake of food is called:

A
Ingestion

B
Egestion

C
Digestion

D
Nutrition
Solution
- Ingestion is the consumption of a substance by an organism.
- This is accomplished by taking in the substance through the mouth into the gastrointestinal tract, such as through eating or drinking.
  Hence, the correct answer is A.
Question 10
1 / -0

In which of the following alternatives, the correct order of nutrition is given?

A
Assimilation $$\rightarrow$$ Absorption $$\rightarrow$$ Digestion $$\rightarrow$$ Ingestion $$\rightarrow$$ Egestion

B
Absorption $$\rightarrow$$ Digestion $$\rightarrow$$ Ingestion $$\rightarrow$$ Assimilation $$\rightarrow$$ Egestion

C
Digestion $$\rightarrow$$ Ingestion $$\rightarrow$$ Assimilation $$\rightarrow$$ Absorption $$\rightarrow$$ Egestion

D
Ingestion $$\rightarrow$$ Digestion $$\rightarrow$$ Absorption $$\rightarrow$$ Assimilation $$\rightarrow$$ Egestion
Solution
- There are five steps in holozoic (organic food is taken from outside) nutrition - ingestion, digestion, absorption, assimilation, and egestion.
- Ingestion is the process the food is taken inside through the mouth and broken down by teeth and digestion begins in the mouth by saliva.
- Digestion is the process in which food is digested by few enzymes and is used by the cells for producing energy.
- Absorption is the process in which cells use the energy from the digested food and helps in building tissues in the body.
- Assimilation is the process in which digested food moves into the cells of the body.
- Egestion is the process in which undigested food is removed out from the body through excretion.
So, the correct answer is option D.

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Nutrition in Animals Test - 8

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Nutrition in Animals Test - 8

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Question 1

Salt loving bacteria

Heat loving bacteria

Methanobacteria

Mycoplasma

Solution

Question 2

Pepsin

Bile juice

Mucus

Saliva

Solution

Question 3

$$3^{rd}$$molar and 4 in number

$$3^{rd}$$ molar and 2 in number

$$2^{nd}$$molar and 4 in number

$$2^{nd}$$ molar and 2 in number

Solution

Question 4

If both the assertion and the reason are true and the reasonis a correct explanation of the assertion

If both the assertion and reason are true but the reason isnot a correct explanation of the assertion

If the assertion is true but the reason is false

If both the assertion and reason are false

If the assertion is false but reason is true

Question 5

Canine

Incisor

Molar

Premolar

Solution

Question 6

Intestine

Stomach

Caecum

Rectum

Solution

Question 7

Incisors and canines

Canines and premolars

Premolars and molars

Canines and molars

Solution

Question 8

Enamel

Dentine

Bone

Pulp

Solution

Question 9

Ingestion

Egestion

Digestion

Nutrition

Solution

Question 10

Assimilation $$\rightarrow$$ Absorption $$\rightarrow$$ Digestion $$\rightarrow$$ Ingestion $$\rightarrow$$ Egestion

Absorption $$\rightarrow$$ Digestion $$\rightarrow$$ Ingestion $$\rightarrow$$ Assimilation $$\rightarrow$$ Egestion

Digestion $$\rightarrow$$ Ingestion $$\rightarrow$$ Assimilation $$\rightarrow$$ Absorption $$\rightarrow$$ Egestion

Ingestion $$\rightarrow$$ Digestion $$\rightarrow$$ Absorption $$\rightarrow$$ Assimilation $$\rightarrow$$ Egestion

Solution

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If both the assertion and the reason are true and the reason

is a correct explanation of the assertion

If both the assertion and reason are true but the reason is

not a correct explanation of the assertion