SPM Biology 2011

Question

2 . Diagram 2.1 shows a plant cell that has been immersed in 30% sucrose solution.

Rajah 2.1 menunjukkan sel tumbuhan yang telah direndam dalam larutan sukrosa 30%.

(a)(i) On Diagram 2.1, label X and Y.

Pada Rajah 2.1, labelkan X dan Y.

(ii) Name the solution which filled the space between the cell wall and X. Explain how the solution filled the space.

Namakan larutan yang mengisi ruang antara dinding sel dan X. Terangkan bagaimana larutan itu mengisi ruang tersebut.

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(b) The plant cell in Diagram 2.1 has undergone plasmolysis. Explain how this happened.

Sel tumbuhan dalam Rajah 2.1 telah mengalami plasmolysis. Terangkan bagaimana ini berlaku.

 

(c) Diagram 2.2 and 2.3 show the condition of two plants which are added with fertilizer. The plant in Diagram 2.3 is added with excess fertilizer. Explain the condition of the plant in Diagram 2.3.

Rajah 2.2 dan Rajah 2.3 menunjukkan keadaan dua pokok yang telah diberi baja. Pokok pada Rajah 2.3 diberi baja secara berlebihan. Terangkan keadaan pokok pada Rajah 2.3.

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(d) Diagram 2.4 shows a method of preserving vegetables. Explain the method used.

Rajah 2.4 menunjukkan satu kaedah pengawetan sayur-sayuran. Terangkan kaedah yang digunakan.

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