Answer the following questions- 1. Explain how digested food gets absorbed into blood? 2. State in one sentence the various processes involved in nutrition in ruminant animal? 3. Explain ingestion in amoeba in two or three sentence through help of diagram?
Answers
answer no.1: 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 in the bloodstream, the digested food molecules are carried around the body to where they are needed.
answer no.2: digestion occurs in rumen of cattle and acquires nutrients by fermenting plant products through microbes.Animals like cow, deer and sheep can digest cellulose present in grass and leaves, with the help of bacteria in their digestive systems.
answer no.3: Amoeba is an important protozoa found in fresh water. It feeds on microscopic plants and animals present in water. The mode of nutrition in amoeba is Holozoic. And the process of obtaining food by amoeba is called phagocytosis. The different processes involved in the nutrition of amoeba are:
1. Ingestion
Ingestion is the process of taking food in the body. Amoeba is a unicellular animal, so it doesn’t have a mouth for ingestion of food. Amoeba ingests the food by encircling it by forming pseudopodia. When the food is completely encircled , the food is engulfed in the form of a bag called food vacuole.
2. Digestion
Digestion is the process of breaking the large and insoluble molecules in small and water soluble molecules. In amoeba, several digestive enzymes react on the food present in the food vacuoles and break it down into simple and soluble molecules.
3. Absorption
The food digested by digestive enzymes is then absorbed in the cytoplasm by the process of diffusion. While the undigested food remains in the food vacuole. If a large amount of food is absorbed by amoeba, the excess food is stored in the cytoplasm in the form of glycogen and lipids.
4. Assimilation
During this step the food absorbed by the cytoplasm is used to obtain energy, growth and repair. This process of utilizing absorbed food for obtaining energy, repair and growth is called assimilation.
5. Egestion
When a sufficient amount of undigested food gets collected in the food vacuole, it is thrown out of the body by rupturing cell membrane. The process of removal of undigested food from the body is called egestion.
plz mark brainliest
Answer:
1 .-
nutrition involves few steps
1. Ingestion : The process of taking in food into the body .
2. Digestion :The process of changing of complex food material into simple one .
3. Absorption : The process in which digested food passes into blood stream .
4. Assimilation :The process in which absorbed food is used by the cell.
5. Egestion:The process in which undigested food is removed from the body .
2.-various steps involved in ruminant animals -their digestive system has two parts.
- Alimentary canal or gut
- Digestive glands .
3.Ampeba is a unicellular animals .The mode of nutrition in amobea is holozoic .The process of obtaining food by ameoba is called phagocytosis. The steps involved in nutrition ameoba are -
- Ingestion
- Digestion
- Absorption and assimilation
- Egestion
