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Christ
- Jan 3, 2023
- Joined Aug 24, 2022
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Omg yes! When I did bio last year, I went way to in depth in this. I think Douchy has a video about it somewhere…. And there was stuff on Khan Academy too…
Simply put, there are two photosystems in the membrane of chloroplasts. 1 and 2
Photosystem 2 is the important one
It is able to oxidise oxygen! Which is really hard to do. Using sunlight it splits water into O2 gas and H+ ions, and sends the electron down the transport chain - which pumps hydrogens across the membrane, making a proton gradient…
Etc… etc
I'd just type out the formula, but I'm sure u could do it using matrices somehow.
sqrt(x^2+y^2+z^2)why was 4-14 skipped?
I don't even know what it is. I read it, yet it feels like i didn't....
Ucat vibes....
- Very random fact, spesh is a very difficult subject….
Christ I’d like a 35, but after the exam I think I’m more in the 30-33 range and that’s perfectly fine with me.
I can’t really estimate how I went on the exam because I feel like the marking scheme is going to be really specific this year, and I don’t know if the answers I wrote down were up to VCAA’s standard. Fairly confident on the MCQ’s though, maybe dropped 2-3 marks according to what I’ve seen people talk about
Christ Hi! Yes I understand the fact about the mRNA not containing introns, however if you read the entire sentence together "The insulin produced by recombinant DNA technology is produced from human insulin mRNA," though accurate is not as good as "The insulin produced by recombinant DNA technology is produced by a cloned human insulin gene."
And the reason why C is a better answer is because the mRNA undergoes further processing as you mentioned to convert into into DNA, and hence its not actually the mRNA producing the insulin but rather the copy DNA produced by Reverse transcriptase (invertase in an enzyme that catalyses sugar btw). Thus C would be a better answeris this question relevant to the study design or not any more. Also how in depth should we know about signaling molecules
b. State two advantages of programmed cell death for a multicellular organism. ( 2 marks)
)) I'm in year 12 this year so yikes exam soon - you guys in year 12 too?
