Page 13 - Module More Biologi Tg 4

Biologi Tingkatan 4 Bab 2 Biologi dan Organisasi Sel

10. Periksa slaid kaca di bawah mikroskop.
Examine the glass slide under the microscope.
11. Lukis sel epidermis bawang yang diperhatikan.
Draw the observed leaf epidermal cells.

Pemerhatian Lukisan sel epidermis daun bawang Nukleus 2
Observation Drawing of onion leaf epidermal cells Nucleus

Sitoplasma
BAB
Cytoplasm

Dinding sel
Cell wall

Perbincangan 1. Apakah fungsi larutan iodin?
Discussion What is the function of iodine solution?
Untuk mewarnakan nukleus, dinding sel dan membran sel supaya dapat dilihat dengan jelas di bawah
mikroskop.
To stain the nucleus, cell wall and cell membrane so that it can be seen clearly under the microscope.
2. Apakah struktur yang hadir dalam sel bawang tetapi tidak hadir dalam sel pipi?
What is the structure that is present in the onion cells but not present in the cheek cells?
Dinding sel / Cell wall

Kesimpulan Sel epidermis bawang terdiri daripada empat bahagian utama, iaitu dinding sel , sitoplasma ,
Conclusion nukleus dan membran plasma .
An onion epidermal cell is made up of four main parts, namely cell wall , cytoplasm , nucleus and
plasma membrane .

Komponen dalam Sel Haiwan dan Sel Tumbuhan Serta Fungsinya
Components of Animal and Plant Cells and their Functions TP 2

Komponen sel Ciri-ciri Fungsi
Cellular component Characteristics Function
(a) Membran Plasma Membran telap memilih Mengawal pergerakan bahan ke
Plasma
membrane Partially permeable membrane dalam dan ke luar sel.
Controls the movement of substances
into and out of the cell.

(b) Dinding sel • Terdiri daripda selulosa • Memberi perlindungan ,
Cell wall
Made up of cellulose sokongan dan mengekalkan
• Tebal dan kuat bentuk sel tumbuhan.
Thick and rigid Gives protection , supports
Dinding sel • Telap kepada semua bendalir. and shape to plant cells.
Cell wall Fully permeable to all fluids.

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