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  1. Z

    Biology P4 random notes

    FF Blackman first hypothesised the "dark" reaction, lol
  2. Z

    Biology P4 random notes

    temperature affects the rate of the light-independent stage as this is controlled by enzymes, whilst the light-dependent stage is not directly affected by temperature changes as these are photochemical reactions. However, extreme temperature will affect light-dependent stage as the membrane of...
  3. Z

    Biology P4 random notes

    Arrangement of pigments into photosystems allows efficient light absorption. Pigments are arranged in a FUNNEL-LIKE STRUCTURE (antenna complex) which allows energy to feed into the reaction center by resonance energy transfer Chlrophyll has a porphyrin head and a hydrocarbon tail
  4. Z

    Biology P4 random notes

    Binding of CO2 with RuBP is called Carbon Fixation because the carbon in CO2 is fixed (attached) to solid RuBP. TP is the BRANCHING POINT in the calvin cycle While most TP continue to regenerate the RuBP,others condense to form hexose phosphate, starch, glucose and cellulose or converted to...
  5. Z

    Biology P4 random notes

    What is the name of the water splitting enzyme??? has to be dehydrogenase or something but I can't find the exact name!
  6. Z

    Biology P4 random notes

    ah, the answer was in the book itself, lol
  7. Z

    Biology P4 random notes

    btw, what are the adaptations of mitochondria for cellular respiration?
  8. Z

    Chemistry paper 42 may/june 11

    Can't we add the radioactive isotope to the buffer solution before adding it to the agarose gel (like we do with ethidium bromide stain)? As far as order of PCR and restriction enzyme is considered, I think either order should be acceptable!
  9. Z

    Biology P4 random notes

    from my side, you will have to wait. Hopefully, someone else will address your problem
  10. Z

    Biology P4 random notes

    I would like to use this thread to post some random notes which I hope help you with the boring revision ordeal. ATP is UNIVERSAL energy currency as it is found in most cells 1. Energy CURRENCY molecule: IMMEDIATE donor of energy to the endothermic reactions (e.g. ATP) 2. Energy STORAGE...
  11. Z

    AS knowledge in A2?

    Do we require any detailed knowledge of AS syllabus (such as glycosidic bonds, Bohr's cycle and what not) for A2 examinations apart from the basics such as enzymes and transportation?? The only evidence of AS knowledge requirement I have found till date in the A2 papers has been "antibody...
  12. Z

    biology p4

    ah, are you referring to the revision guide?? just checked the name of the author , lol. It reads Mary Jones!!!
  13. Z

    biology p4

    which thread???I can't find any link!
  14. Z

    Stats

    I am not totally sure about that, in some questions we get median in decimals, but we never change that!
  15. Z

    biology p4

    Mary Jones????? Never heard of her or her book
  16. Z

    Stats

    Do we have to write the answer to the last part in whole number form or can we write it in decimals?
  17. Z

    Stats GT speculations here

    38
  18. Z

    STATS question!

    We have used the normal approximation for the binomial distribution as np>5 and nq>5 n=200 p=2/15 q=13/15
  19. Z

    Super confusing permutation and combination question for me

    Re: Super confusing permutation and combination question for First picture the 6 plastic mugs kept on a table with gaps between each of the cups. Now, if the china mugs are to kept separate from each other, then they have to be placed between the spaces of the plastic mugs and never together...
  20. Z

    Super confusing permutation and combination question for me

    Re: Super confusing permutation and combination question for permutation is when we are ARRANGING objects combination is when we are SELECTING objects So, permutation we have to first SELECT and then ARRANGE For, combination, we only have to SELECT and not worry about arranging.
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