Class 10 Exam  >  Class 10 Notes  >  Biology for Class 10  >  Nutrition in Amoeba

Nutrition in Amoeba | Biology for Class 10 PDF Download

Nutrition in Amoeba | Biology for Class 10

Amoeba is a unicellular and omnivore organism.

  •  It eats plants and animals as food which floats in water in which it lives.
  • The mode of nutrition in amoeba is holozoic.
  • The process of obtaining food by amoeba is called phagocytosis(cell feeding)

Various steps involved in the Nutrition of Amoeba they are as follows

Nutrition in Amoeba | Biology for Class 10

Ingestion:- Amoeba has no mouth or adher organ for intake of food. It ingest food particles by forming temporary finger-like projections pseudopodia. Schedule courier fuse over the food particles to form a food vacuole.

Digestion:- Inside the food vacuole, complex food breaks into small soluble molecules.
This food is digested in the food vacuole by digestive enzymes.
The enzymes from surrounding cytoplasm enter into the food vacuole and break down the food into small and soluble molecules by chemical reaction.

Absorption:- The digested food present in food vacuoles of amoeba is absorbed directly into the cytoplasm of amoeba cell by diffusion.
This process of absorption by the cytoplasm is called as absorption.
The digested food just spreads out from the food vacuole into the whole amoeba cell.
After absorption of food the food vacuole disappears.

Assimilation:- A part of the food absorbed in the amoeba cell is used to obtain energy through respiration.
The remaining part of absorbed food is used to make the parts of amoeba cell which lead to the growth of amoeba.
Thus on assimilating food amoeba grows in size and then amoeba can reproduce by dividing into two daughter cells.

Egestion:- The remaining undigested food material is removed by the amoeba cell membrane, which rupture suddenly at any place and eliminates out the undigested food. This process is called egestion.

The document Nutrition in Amoeba | Biology for Class 10 is a part of the Class 10 Course Biology for Class 10.
All you need of Class 10 at this link: Class 10
36 videos|93 docs|54 tests

FAQs on Nutrition in Amoeba - Biology for Class 10

1. What is the role of nutrition in Amoeba?
Ans. Nutrition plays a crucial role in the life of an Amoeba. It helps in the growth, development, and survival of the organism. Amoebas obtain their nutrition by engulfing food particles through a process called phagocytosis. They feed on small organisms such as bacteria, algae, and other organic matter present in their environment.
2. How does Amoeba obtain its nutrition?
Ans. Amoeba obtains its nutrition by engulfing food particles through a process called phagocytosis. It extends its pseudopodia around the food particle, forming a food vacuole. Enzymes are then secreted into the vacuole to break down the food into simpler substances. The nutrients are absorbed by the Amoeba, while the undigested waste is eliminated.
3. What happens to the food particles after Amoeba engulfs them?
Ans. After Amoeba engulfs the food particles, they form a food vacuole. Inside the vacuole, enzymes are secreted to break down the food into simpler substances. The nutrients are then absorbed by the Amoeba and utilized for its growth and energy requirements. The undigested waste is eliminated through exocytosis.
4. Can Amoeba survive without nutrition?
Ans. No, Amoeba cannot survive without nutrition. Like all living organisms, Amoeba requires nutrients for its growth, development, and survival. Without nutrition, Amoeba would not be able to obtain energy or essential nutrients to carry out its life processes. Lack of nutrition would eventually lead to the death of the Amoeba.
5. How does the nutrition process in Amoeba differ from other organisms?
Ans. The nutrition process in Amoeba, known as phagocytosis, differs from other organisms in several ways. Unlike organisms with a specialized digestive system, Amoeba lacks a defined mouth or digestive cavity. It engulfs its food entirely through pseudopodia formation. Additionally, Amoeba obtains its nutrition by feeding on smaller organisms or organic matter, whereas other organisms may rely on external sources such as plants or other animals for their nutrition.
36 videos|93 docs|54 tests
Download as PDF
Explore Courses for Class 10 exam
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Download the FREE EduRev App
Track your progress, build streaks, highlight & save important lessons and more!
Related Searches

Semester Notes

,

Nutrition in Amoeba | Biology for Class 10

,

Sample Paper

,

practice quizzes

,

Exam

,

study material

,

mock tests for examination

,

pdf

,

past year papers

,

Free

,

MCQs

,

Objective type Questions

,

shortcuts and tricks

,

Nutrition in Amoeba | Biology for Class 10

,

Summary

,

Extra Questions

,

Important questions

,

ppt

,

Viva Questions

,

Nutrition in Amoeba | Biology for Class 10

,

Previous Year Questions with Solutions

,

video lectures

;