Biology SPM 2013 Paper 1 Answers




Paper 1 Biology answers SPM 2013 by Ms Elizabeth.


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22 comments:

  1. Can i know why no.24 is B. Nt really understand why C is nt the answer.

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    1. Thrilling activities cause the secretion of Adrenaline.

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    2. But running across a field also cause the secretion of adrenalin

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  2. why the answer for number 17 is B? Isn't temperature affects the rate of photosynthesis? so why cant the answer be B?

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    1. Ya ,as i know ,temperature can affect rate of photosynthesis ,so i m also wondering y...

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    2. because the optimum temperature for photosynthesis is between 20-25 degree celsius

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    3. When the temperature is too high, the stomata will close to reduce transpiration (to reduce water loss). By doing so, it will block the carbon dioxide from diffusing into the leaf and hence the rate of photosynthesis is low.

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  3. Why is number 4 D? A is muscle tissue what.

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  4. A = muscle tissue
    B= bone tissue
    C= ERKK idk
    D= Cardiac tssue...

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  5. can i know what is the range to get an A for bio in SPM?

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    1. biology is the hardest among three sciences... and there is no adjustment of the range of marks... so be prepared...

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  6. why 43 cant be B, implantation can still occur through In vitro fertilisation

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    1. in vitro fertilisation occurs outside of the body. the question requires those happening inside the body... so in vitro fertilisation is actually not accepted... so implantation is out

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  7. but it is planted inside(on the endometrium). so B is still possible

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    1. are you referring to no.43? I totally agree with you

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  8. can somebody explain to me no.26? why D is wrong?

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    Replies
    1. because when we exhale, the diaphgram is relax not contract

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  9. what is the real answer for no.31?? why D is wrong..

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  10. can i ask what is gland X in que18??

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