Biology SPM 2013 Paper 1 Answers

Biology SPM 2013 Paper 1 Answers

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Paper 1 Biology answers SPM 2013 by Ms Elizabeth.
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22 comments:

  1. AnonymousWed Nov 27, 09:37:00 PM

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

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    Replies
    1. UnknownThu Nov 28, 08:33:00 PM

      Thrilling activities cause the secretion of Adrenaline.

      Delete
    2. AnonymousSun Dec 01, 11:44:00 PM

      But running across a field also cause the secretion of adrenalin

      Delete
  2. AnonymousFri Nov 29, 04:29:00 PM

    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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    Replies
    1. AnonymousSat Nov 30, 12:28:00 PM

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

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    2. AnonymousSat Nov 30, 11:32:00 PM

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

      Delete
    3. Derrick Gan Ee HowFri Jun 05, 08:49:00 PM

      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.

      Delete
  3. AnonymousSun Dec 01, 11:40:00 PM

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

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  4. pinklittledotMon Dec 02, 02:03:00 PM

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

    ReplyDelete
  5. AnonymousThu Dec 05, 01:57:00 PM

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

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    1. AnonymousThu Dec 05, 02:01:00 PM

      normally?

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    2. AnonymousSat Dec 07, 01:19:00 PM

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

      Delete
  6. AnonymousFri Dec 06, 01:41:00 AM

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

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    Replies
    1. AnonymousSat Dec 07, 01:22:00 PM

      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

      Delete
  7. AnonymousTue Dec 17, 09:59:00 PM

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

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    1. AnonymousTue Dec 17, 10:10:00 PM

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

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    2. AnonymousSun Dec 22, 01:39:00 PM

      me too

      Delete
  8. AnonymousTue Dec 17, 10:09:00 PM

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

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    Replies
    1. UnknownSun Jan 12, 08:57:00 PM

      because when we exhale, the diaphgram is relax not contract

      Delete
  9. UnknownTue Jan 14, 09:25:00 AM

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

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  10. AnonymousSat Apr 26, 02:38:00 PM

    paper 2????

    ReplyDelete
  11. AnonymousSat Oct 25, 04:20:00 PM

    can i ask what is gland X in que18??

    ReplyDelete

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