Hari ini cgu berikan notes tambahan untuk topik yg telah kita pelajari tadi..sebagai pengukuhan dan cgu harap semua dapat membaca notes nie..moga2 ia dapat membantu..ok..let's start :
1. Plants can detect and respond to stimuli around them.
2. The response by plants to stimuli is called tropism.
3. There are two types of tropism :
(a) Positive tropism - response by plants towards the stimulus.
(b) negative tropism - response by plants away from the stimulus.
4. Plants respond to light, gravity and water. there are also plants that respond to the stimulus of
touch.
5. The tropic movements are importants to plants because these movements help the plants get
necessities like light and water and minerals. This enables plants to grow healthily.
6. Examples of tropic responses and nastic movement are given as follows :
7. Tropic differences between the responses of the plant shoots and plant roots are given below.
8. Phototropism :
9. Geotropism :
The plant root grows towards gravity while the plant shoot grows away from gravity. 
10. Hyrotropism :
The plant root grows towards the direction of water.
11. Thigmotropism :
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