SPM Biology 2011

Question

3 . Diagram 3 shows a type of organelle found in muscle cells. A biochemical reaction occurs in the organelle.

Rajah 3 menunjukkan sejenis organel yang terdapat dalam sel otot.

Tindak balas biokimia berlaku dalam organel tersebut.

(a)(i) Name the organelle.

Namakan organel ini.

(ii) Explain why membrane X is in the form of numerous folded layers.

Terangkan mengapa membrane X adalah dalam bentuk lapisan yang berlipat-lipat.

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(b) The biochemical reaction that occurs in this organelle is summarised as follows:

TIndak balas biokimia yang berlaku dalam organel ini diringkaskan seperti berikut:

(i) Name gas P

Namakan gas P

(ii) Name product Q

Namakan hasil Q

(iii) Explain why the muscle cell has a large number of these organelles.

Terangkan mengapa sel otot mengandungi banyak bilangan organel ini.

(iv) If the blood sugar level is lower than the normal range, the biochemical reaction in this organelle can still occur. Explain how.

Jika aras gula dalam darah adalah rendah daripada julat normal, tindak balas biokimia dalam organel ini masih boleh berlaku. Terangkan bagaimana.

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(c) State two differences on the biochemical reaction occurring between muscle cell and yeast cell in the absence of gas P.

Nyatakan dua perbezaan ke atas tindak balas biokimia yang berlaku antara sel otot dan sel yis tanpa kehadiran gas P.

Cher Questions Solution Bank Rumusan Jawapan SPM & IGCSE Questions Answers Solution

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