SPM Biology 2011

Question

1 . Diagram 1.1 shows the different level of cell organisation in human from cell to organ.
Rajah 1.1 menunjukkan aras yang berbeza dalam organisasi sel bagi manusia daripada sel ke organ.

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(a)(i) Name P, Q and R.

Namakan P, Q dan R.

(ii) State one function of the red blood cell.

Nyatakan satu fungsi sel darah merah.

 

(b) Explain the function of Q in regulating the blood glucose level.

Terangkan fungsi Q dalam mengawal atur aras glukosa darah.

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(c) Diagram 1.2 shows the movement of a bolus of food in oesophagus. Explain how the bolus of food moves down from the oesophagus to the stomach.

Rajah 1.2 menunjukkan pergerakan bolus makanan dalam esofagus. Terangkan bagaimana bolus makanan bergerak turun dari esofagus ke perut.

 

(d) State the function of rennin, pepsin and hydrochloric acid in the stomach.

Nyatakan fungsi renin, pepsin dan asid hidroklorik dalam perut.

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