AllyParnell
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Hey all, how's the revision going?
I was wondering if anyone has been given any predictions this year for the exams as I've had nothing suggested by my teacher as of yet.
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Iamjos
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How was it?
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abi_parsnips
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(Original post by Iamjos)
How was it?
I thought it was okay, question with the graphs and haemolysis was the only tricky bit. Loved the essays and question on water! What about you?
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steph100698
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Hi, I was wondering what did you guys put for the haemolysis bit? It took me so long to answer that question!
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MrHarry
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(Original post by steph100698)
Hi, I was wondering what did you guys put for the haemolysis bit? It took me so long to answer that question!
I think I wrote about it being in a hypotonic solution and the direction of water potential by osmosis. I can't really remember the question.

For the question on the next page about describing the sight of the cell, I wrote about the cell losing water by Osmosis and plasmolysing - cell vacuole shrinking in size, cell contents shrinking and the cell membrane moving away from the cell wall.
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Mikail246
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Hi, do you know for the enzyme question, was the substrate found in the air?
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LydiaIsaacs
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(Original post by Mikail246)
Hi, do you know for the enzyme question, was the substrate found in the air?

It said about the enzyme needing air, so I mentioned that the enzyme was an oxidase one and so needed oxygen to undergo the reaction.. clearly I just made it up
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LydiaIsaacs
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Anyone know what the Golgi body question was. And was it mitochondria or chloroplast in that micrograph???
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MrHarry
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(Original post by LydiaIsaacs)
Anyone know what the Golgi body question was. And was it mitochondria or chloroplast in that micrograph???
I put Mitochondria. Aaaaaaand for the Golgi question I put Lysosome (Digestive Enzyme).
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ForeverAStudent1
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Hey what did you guys put for the microscope question of the plant cell? There were 6 different answers? I messed up badly on the question bc i didnt know if it was the part of a plant eg the chloroplast of the full organelle
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LydiaIsaacs
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(Original post by MrHarry)
I put Mitochondria. Aaaaaaand for the Golgi question I put Lysosome (Digestive Enzyme).
I put lysosome, but apparently plants do not have lysosomes!
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MrHarry
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(Original post by LydiaIsaacs)
I put lysosome, but apparently plants do not have lysosomes!
Hmm... I wonder what it is then.
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LydiaIsaacs
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(Original post by MrHarry)
Hmm... I wonder what it is then.
proteins according to my biology teacher.
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MrHarry
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(Original post by LydiaIsaacs)
proteins according to my biology teacher.
Riiiiight... Ah well, only one mark
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LydiaIsaacs
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(Original post by MrHarry)
Riiiiight... Ah well, only one mark
it was 6 or so for me, because it then went on to talk about how it secretes the product, and I continued to suggest that it was lysosome!!
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MrHarry
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(Original post by LydiaIsaacs)
it was 6 or so for me, because it then went on to talk about how it secretes the product, and I continued to suggest that it was lysosome!!
Is that the question which required you to talk about secreting vesicles by pinching off the ends, etc?
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LydiaIsaacs
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(Original post by MrHarry)
Is that the question which required you to talk about secreting vesicles by pinching off the ends, etc?
Yes, I talked about exocytosis and the vesicle containing 'lysosomes' fusing with the plasma membrane
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MrHarry
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(Original post by LydiaIsaacs)
Yes, I talked about exocytosis and the vesicle containing 'lysosomes' fusing with the plasma membrane
Yeees! Me too.
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abi_parsnips
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For the Golgi question I talked about glycoproteins, but the on the micrograph I couldn't tell if it was chloroplast or mitochondria, I went with mitochondria just because there were so many and I remember some of them being more circular, which mitochondria can be if cut on different planes. Still not sure though
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aladdin818
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Hi guys.

I am resitting my BY2 paper! i didn't resit the BY1 paper tho but out of curiosity, which essays were given on the BY1 paper this year? & anyone have any ideas on which essays it may be this year:[ my essay really let me down last year (got 5/10)
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