LONG ANSWER QUESTIONS
Explain the process of nutrition in amoeba with the help of a diagram,
2. What is the function of saliva, bile juice and pancreatic juice?
3. How is the digested food absorbed into the blood?
4. What do you understand by peristalsis?
5. Briefly explain the process of digestion in ruminants.
Answers
Answer:
1-The nutrition in amoeba takes place in the following steps: 1. Ingestion: The process of ingestion is nothing but intake of food into the body. Amoeba is unicellular and hence it does not have mouth, Amoeba takes the food into the body by forming structures called pseudopodia around the food particle.
2-Pancreatic juice:- The pancreas secretes pancreatic juice which contains enzymes like trypsin for digesting proteins and lipase for breaking down emulsified fats. salivary juice partially digested the carbohydrate. Bile juice helps in digestion of fat.
3-Digested food molecules are absorbed in the small intestine . This means that they pass through the wall of the small intestine and into our bloodstream. Once there, the digested food molecules are carried around the body to where they are needed.
4-Peristalsis is a series of wave-like muscle contractions that moves food to different processing stations in the digestive tract. ... Peristalsis concludes in the large intestine where water from the undigested food material is absorbed into the bloodstream.
5-Digestion in ruminants occurs sequentially in a four-chambered stomach. ... The mass is finally passed to the true stomach, the Abomassum, where the digestive enzyme lysozyme breaks down the bacteria so as to release nutrients.
Explanation:
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Nutrition in amoeba
The nutrition in amoeba takes place in the following steps: 1. Ingestion: The process of ingestion is nothing but intake of food into the body. Amoeba is unicellular and hence it does not have mouth, Amoeba takes the food into the body by forming structures called pseudopodia around the food particle.
2.
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student-name Anusha Shishir Paranjpe asked in Science
What is the function os saliva, bile juice,pancreatic juice
Bile juice is a digestive juice secreted by the liver. Although it does not contain any digestive enzymes, it plays an important role in the digestion of fats. Bile juice has bile salts such as bilirubin and biliverdin. These break down large fat globules into smaller globules in the small intestine so that the pancreatic enzymes can easily act on them. This process is known as emulsification of fats. Bile juice also makes the medium alkaline and activates lipase.
Functions of saliva are:
1) Lubrication and binding of food: It helps in lubrication of food as well as the mouth parts and esophagus for the smooth movement of food.
2) Solubilises the dry food material
3) It keeps the mouth clean
4) Starch digestion: Saliva contains amylases which digest starch. So, starch digestion begins in mouth itself.
5) Provides alkaline environment in mouth.
Pancreatic juice:- The pancreas secretes pancreatic juice which contains enzymes like trypsin for digesting proteins and lipase for breaking down emulsified fats.
3.The absorbed food is taken up by the walls of the intestine .the inner lining of small intestine has numerous finger like projections called villi , which increases surface area for absrption.
4.the movements that the large tubes inside the body make automatically to push something out or along
5. Digestion in ruminants occurs sequentially in a four-chambered stomach. ... The mass is finally passed to the true stomach, the Abomassum, where the digestive enzyme lysozyme breaks down the bacteria so as to release nutrients.