Answer the following Questions :-
1. What are the different stages of animal nutrition?
2. What are the four types of teeth?
3. What is the function of incisors?
4. Which nutrients are partially digested in the stomach?
5. What is peristaltic movement?
6. What are permanent teeth? Name four types of teeth with their function.
7. What are villi?
8. Name the type of carbohydrate that an be digested by ruminants but not by humans. Give the reason also.
Answers
Answer:
1)The five steps involved in nutrition in animals, including human beings are as follows;
Ingestion.
Digestion.
Absorption.
Assimilation.
Egestion.
2)We have four different types of teeth, with each type serving a particular purpose for eating and chewing.
8 Incisors.
4 Canines.
8 Premolars.
12 Molars (including 4 wisdom teeth)
3)Incisors are the teeth that you use to bite into your food. Canines - Your canines are the next teeth that develop in your mouth. You have four of them and they are your sharpest teeth, used for tearing apart food.
4)Protein digestion occurs in the stomach and duodenum in which 3 main enzymes, pepsin secreted by the stomach and trypsin and chymotrypsin secreted by the pancreas, break down food proteins into polypeptides that are then broken down by various exopeptidases and dipeptidases into amino acids.
5)Peristalsis refers to the involuntary contraction and relaxation of the muscles of the digestive tract to move the food through the digestive system. The creation of wave-like muscle contractions pushes the food easily to the different processing stations in the digestive tract.
6)The Four Types of Teeth and Their Functions in Your Mouth
Incisors - Your incisors are eight teeth in the front center of your mouth (four on both bottom and top). ...
Canines - Your canines are the next teeth that develop in your mouth. ...
Premolars - Premolars are used for tearing and crushing food. ...
Molars - Your molars are your largest teeth.
7)The structure of the small intestine is designed for absorption of nutrients. The inside of the small intestine is lined with villi that absorb nutrients from the liquid mixture called chyme produced in the stomach from the food we eat.
8)Cellulose (a type of carbohydrate) can be digested by ruminants but not by humans because ruminants have a large sac-like structure called rumen between the oesophagus and the small intestine. The cellulose of the food is digested here by the action of certain bacteria which are not present in humans.
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1. What are the different stages of animal nutrition ?
➥ The different stages of animal nutrition are :
- Ingestion.
- Absorption.
- Assimilation.
- Digestion.
- Egestion.
2. What are the four types of teeth ?
➥ The four types of teeth are :
- Incisors.
- Canines.
- Premolar.
- Molars.
3. What is the function of Incisors ?
➥ The function of Incisors is :
- Incisor teeths helps to bite the food.
4. Which nutrients are partially digested in the stomach?
➥ Nutrients partially digested in the stomach :
- Protein.
- Pepsin.
- Trypsin.
- chymotrypsin.
5. Peristaltic movement :
➥ Peristaltic movement :
- The contraction and relaxation of food in the oesophagus is called Peristaltic movement.
6. What are permanent teeth? Name four types of teeth with their function.
➥ Permanent teeth : Four types of permanent teeth are : Incisors, canines, premolars and molars.
- Incisors : Helps to bite the food.
- Canines : Helps in tearing the food.
- Premolar : Helps in crushing the food.
- Molar : Helps in grind the food.
7. What are villi ?
➥ Villi : Vill are the finger like structures found inside the small intestines.
8. Name the type of carbohydrate that can be digested by ruminants but not by humans. Give the reason also.
➥ Cellulose is the type of carbohydrate that can be digested by ruminants but not by humans.
- It is because of ruminants have a large sac like structure called rumen.