Friday, March 20, 2009

Biology ~ System in multicellular organism


Multicellular organism is made up of many cells which organized to form tissues, organ, system and then the organism. There are plant and animals. We need to know the types of tissues, organs and system which made both plant and animals. But bear in mind that organization in plants is more simple than in animals.

System in plant
-shoot system
-root system

Organ in plant

Tissue in plant
~> Meristematic tissue
-young and actively dividing
-not undergo differentiation
-tip of roots and bud of shoots

~> Permanent tissue
Mature tissue that undergo differentiation
3 types:
-epidermal tissue
-ground tissue that are parenchyma, collenchyma and sclerenchyma
-vascular tissue that are phloem xylem


Explain the leaf as an organ (10 marks)
- click on the image for larger preview-

No comments:

Post a Comment