The document discusses the nutrition in amoeba, hydra, and tapeworm. Amoeba feeds on algae, bacteria, and small protozoa using pseudopodia and digests its food intracellularly within food vacuoles. Hydra feeds on small insects and larvae using its tentacles, and digests food partially intracellularly and partially extracellularly, expelling waste through its mouth. Tapeworm is an endoparasite that absorbs simple nutrients from the small intestine of its host directly through its body surface, as it lacks a complete alimentary canal.

1. WELCOME

2. POWERPOINT PRESENTATION
ON
NUTRITION IN AMOEBA, HYDRA,
TAPEWORM

3.  Presented By
NAME : VEENA.P. CHANDRAN
REG. NO : 13392007
OPTION : NATURAL SCIENCE
BADHIRIYA B.Ed TRAINING COLLEGE
VELICHIKKALA

4. NUTRITION IN AMOEBA,
HYDRA, TAPEWORM

5. INTRODUCTION
There are many similarities and
differences in the nature of the
food, mechanism of feeding and
the process of digestion in living
beings ranging from micro
organisms like bacteria to human
beings.

6. AMOEBA
Algae, bacteria and small protozoa form the
main food of amoeba. The amoeba gathers
its food with the help of ‘pseudopodia’.
Digestion takes place inside the food
vacuole present in the cytoplasm. Therefore
the process of digestion in amoeba is
intracellular digestion. The waste
materials are expelled through the body
surface

7. NUTRITION IN AMOEBA

8. HYDRA
The main food of Hydra comprises
small insects, larvae etc., that are found
in water. Hence, hydra is considered
carnivorous. Food is captured by using
tentacles.
Digestion in Hydra is partially intra
cellular and partially extra cellular.
Digestive waste are expelled through
the mouth by contraction of the body.

9. NUTRITION IN HYDRA

10. TAPE WORM
The tapeworm is an endoparasite
seen in the small intestine of man.
Since it is an endoparasite, the
tapeworm does not have a complete
alimentary canal. It absorbs simple
nutrients from the small intestine of
man directly through body surface.

11. NUTRITION IN TAPEWORM

12. THANK YOU