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SS2: BIOLOGY - 1ST TERM

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  1. Classification of Plants | Week 1
    3 Topics
    |
    2 Quizzes
  2. Digestive System I | Week 2
    4 Topics
    |
    1 Quiz
  3. Digestive System II | Week 3
    4 Topics
    |
    1 Quiz
  4. Transport System I | Week 4
    5 Topics
    |
    1 Quiz
  5. Transport System II | Week 5
    3 Topics
  6. Transport System III | Week 6
    1 Topic
  7. Mechanism of Transportation in Higher Animals | Week 7
    3 Topics
    |
    1 Quiz
  8. Transport in Plants | Week 8
    2 Topics
  9. Experiment to Demonstrate the Flow of Materials in Plants | Week 9
    2 Topics
    |
    1 Quiz
  10. Respiratory System | Week 10
    2 Topics



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Topic Content:

  • Feeding Mechanism in Protozoa
  • Feeding Mechanism in Hydra

Feeding Mechanism in Protozoa e.g. Amoeba:

Amoeba feeds on algae such as Diatoms and Chlamydomonas.

When Amoeba comes in contact with its food, it thrusts out its pseudopodia in the direction of the food and surrounds It with a drop of water forming the food vacuole. The food particle is carried around the cell and digested. Digested food diffuses into the cytoplasm. Nutrients are assimilated and the undigested food is egested.

amoeba nutrition
Process of Feeding in Amoeba.

 

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