7th Grade > Biology
NUTRITION IN ANIMALS MCQs
Total Questions : 115
| Page 11 of 12 pages
Answer: Option A. ->
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The bile duct allows passage of bile juices from the liver and the gall bladder to the duodenum.
Answer: Option A. ->
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Use: 1 Mark
Location: 1 Mark
Saliva helps in breaking down complex components like starch into simple sugars. It brings about partial digestion of starch. This makes it easier for the body to digest the food.
Saliva also helps in lubrication of food.
Saliva is secreted by the salivary glands which are present in the buccal cavity.
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Use: 1 Mark
Location: 1 Mark
Saliva helps in breaking down complex components like starch into simple sugars. It brings about partial digestion of starch. This makes it easier for the body to digest the food.
Saliva also helps in lubrication of food.
Saliva is secreted by the salivary glands which are present in the buccal cavity.
Answer: Option A. ->
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Full form: 1 Mark
Use: 1 Mark
The full form of ORS is Oral Rehydration Solution.
This solution is used to prevent or treat dehydration as a part of oral rehydration therapy(ORT).
Answer: Option A. ->
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Differences: 1 Mark each
The dentition of ruminants or grass-eating animals is different from humans in the following ways:
1. Incisors are absent on the upper jaw of ruminants, while humans have incisors.
2. Ruminants do not have canines, while humans have canines in both the jaws.
3. Ruminant molars are much stronger than human molars as these animals chew the cud.
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Differences: 1 Mark each
The dentition of ruminants or grass-eating animals is different from humans in the following ways:
1. Incisors are absent on the upper jaw of ruminants, while humans have incisors.
2. Ruminants do not have canines, while humans have canines in both the jaws.
3. Ruminant molars are much stronger than human molars as these animals chew the cud.
Answer: Option A. ->
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Structure: 1 Mark
Location: 1 Mark
Function: 1 Mark
Stomach is a muscular J shaped thick walled bag. It receives food from the oesophagus and opens into the small intestine. It is the widest part of the alimentary canal. It churns the food to mix the digestive juices. Mainly protein is digested in the stomach. It also secretes HCl that kills microbes and activates the enzymes.
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Structure: 1 Mark
Location: 1 Mark
Function: 1 Mark
Stomach is a muscular J shaped thick walled bag. It receives food from the oesophagus and opens into the small intestine. It is the widest part of the alimentary canal. It churns the food to mix the digestive juices. Mainly protein is digested in the stomach. It also secretes HCl that kills microbes and activates the enzymes.
Answer: Option A. ->
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Types: 1 Mark
Use: 1 Mark
Types of teeth:
(Any two)
1. Incisors
2. Canines
3. Premolars
4. Molars
Use:
Teeth help in mastication. Mastication is when food is broken into small pieces by biting, grinding and crushing with the teeth while being mixed with saliva. This is done so that digestion becomes easier.
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Types: 1 Mark
Use: 1 Mark
Types of teeth:
(Any two)
1. Incisors
2. Canines
3. Premolars
4. Molars
Use:
Teeth help in mastication. Mastication is when food is broken into small pieces by biting, grinding and crushing with the teeth while being mixed with saliva. This is done so that digestion becomes easier.
Answer: Option A. ->
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Definition: 1 Mark
Examples: 1 Mark
Ruminants are hoof-legged grass-eating animals that stand on four limbs. They quickly swallow their leafy food and store it in the rumen. Later, the food returns to the mouth and the animal chews on it.
Ruminants include cows, buffaloes, sheep, giraffe, camel, deer, etc.
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Definition: 1 Mark
Examples: 1 Mark
Ruminants are hoof-legged grass-eating animals that stand on four limbs. They quickly swallow their leafy food and store it in the rumen. Later, the food returns to the mouth and the animal chews on it.
Ruminants include cows, buffaloes, sheep, giraffe, camel, deer, etc.
Answer: Option A. ->
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Each part: 0.5 Mark
The alimentary canal can be divided into various compartments:-
1. Buccal cavity (Mouth)
2. Oesophagus
3. Stomach
4. Small intestine
5. Large intestine
6. Anus
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Each part: 0.5 Mark
The alimentary canal can be divided into various compartments:-
1. Buccal cavity (Mouth)
2. Oesophagus
3. Stomach
4. Small intestine
5. Large intestine
6. Anus
Answer: Option A. ->
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Digestion: 1 Mark each
Location: 0.5 Mark each
Mechanical digestion: It involves mastication (chewing, mashing, and breaking) of food into smaller pieces. It happens in the mouth, where teeth cuts and grinds the food. Saliva helps in bolus formation.
Chemical digestion: It involves changing food into smaller particles through the action of enzymes. It involves the breakdown of the larger molecules by hydrolysis. Chemical digestion happens throughout the digestive system starting from the action of saliva in mouth.
Answer: Option A. ->
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Each point: 1 Mark
1. The digested food enters the large intestine after the small intestine.
2. It is wider and shorter than the small intestine. It is 1.5 meters long.
3. Excess water, minerals, and vitamins are absorbed here. Semi-solid undigested food is thrown out from rectum through the anus.
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Each point: 1 Mark
1. The digested food enters the large intestine after the small intestine.
2. It is wider and shorter than the small intestine. It is 1.5 meters long.
3. Excess water, minerals, and vitamins are absorbed here. Semi-solid undigested food is thrown out from rectum through the anus.
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