SUB TOPIC 3.2:

Learning Outcomes (LO):

Explain the phenomenon of wilting in plants using examples Explain the preservation of food using examples

1. State the freshness of the plants below using the words given.

2. Explain the effect of using excessive fertilizer on plant (OCPR).

1

Die Wilt Fresh

Object Plant Condition - ………….. fertilizer/water shortage in soil

- Concentration of soil water ………….. than cell sap of the plant cell- Soil water becomes hypertonic than cell sap

Process - Water molecules diffuse out from the cell sap to the soil by …………..- Vacuole and cytoplasm shrink and plasma membrane pulls away from the

cell wall

Result - The cells are ……………… and become flaccid- The plant is called wilting

Complete the blank space below.

Concentration of water soil is higher than ……………. of the plant cell. Soil water becomes hypertonic than cell sap. Water molecules diffuse out from the cell sap to the soil by osmosis. …………… and cytoplasm shrink and plasma membrane pulls away from the cell wall. The cells are plasmolysed and become flaccid. The plant cell is called …………….

3. Explain how the food can be last longer (OCPR).

2

Object Food Condition - immersed in high concentration of salt or ………… solution

- this solution is hypertonic than the food

Process - it cause the water molecules from the food ………….. out to the solution by osmosis

Result - cells of food become ………………

Complete the blank space below.

Food has to be immersed in ……………… concentration of salt or sugar solution. This solution is ……………. than the food. It cause the water molecules from the food diffuses ………. to the solution by osmosis. Cells of food become dehydrate.

"And We send down from the sky rain chartered with blessing, and We produce therewith gardens and grain for harvests." (Surah Qaf, 9)

SUBTOPIC 3.3 : Appreciating the movement of substances across the plasma membrane

1. Things to ponder.

3

Dan tidaklah sama keadaan dua laut (sekalipun satu jenisnya), yang satu tawar lagi memuaskan dahaga serta sesuai diminum, sementara yang satu lagi masin lagi pahit dan (kedua-duanya itu berfaedah kepada kamu): Dari tiap-tiap satunya kamu dapat makan daging yang lembut hidup-hidup dan dapat pula kamu mengeluarkan benda-benda perhiasan untuk kamu memakainya; (selain itu) engkau melihat pula kapal-kapal membelah air belayar padanya; (diadakan semuanya itu) supaya kamu

4

Dan tidaklah sama keadaan dua laut (sekalipun satu jenisnya), yang satu tawar lagi memuaskan dahaga serta sesuai diminum, sementara yang satu lagi masin lagi pahit dan (kedua-duanya itu berfaedah kepada kamu): Dari tiap-tiap satunya kamu dapat makan daging yang lembut hidup-hidup dan dapat pula kamu mengeluarkan benda-benda perhiasan untuk kamu memakainya; (selain itu) engkau melihat pula kapal-kapal membelah air belayar padanya; (diadakan semuanya itu) supaya kamu

Dan Kami telah jadikan di bumi: Gunung-ganang yang menetapnya, yang tinggi menjulang; dan Kami telah memberi minum kepada kamu air yang tawar lagi memuaskan dahaga? [Al Mursalat, 27]