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AS or A2 OCR Human Biology?

Just thought I would make a thread for anyone sitting AS or A2 Human Biology, I'm doing both this year as didn't do too well in AS last year!!

So for everyone doing it, how's the revision going?!?!
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Reply 2
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tim087
do u know what might possibly come up this year for f221?
Reply 3
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RB136444
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Original post by tim087
do u know what might possibly come up this year for f221?


I have a feeling Electrolytes may come up again, as I doubt many people did well on electrolyte question last year! But otherwise it's near possible to tell, how's revision going for you? :smile:


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Reply 4
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tim087
i think im ready for it btw do we have to know the roles of the heart e.g. pulmonary artery, aorta,
. also when is your exam?
Reply 5
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RB136444
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Original post by tim087
i think im ready for it btw do we have to know the roles of the heart e.g. pulmonary artery, aorta,
. also when is your exam?


You need to know when they pump the blood to, like the aorta pumps blood all around the body, etc, and also be able to say that is why the left ventricle wall is thicker so that is can generate a higher/greater pressure when it contracts so the blood can be pumped all around the body~ :smile:

And also mine is tomorrow at 9:15! Is yours the same?


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Reply 6
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tim087
how was the exam ?? found it quite hardd, im not sure bot the first two pages ...
Reply 7
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RB136444
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Original post by tim087
how was the exam ?? found it quite hardd, im not sure bot the first two pages ...


I found the exam really in the middle, the way some of the questions were worded was just awkward to understand! The last questions were nice I found~ But I didn't like the staining questions, and if you remember what did you put for two safety precautions of making a blood smear? I said wearing sterile disposable gloves as well as sterile equipment?

Also how prepared are you for F222 on Monday??? I'm so happy it's an afternoon one so there is time to re-cap before the exam!!!

Oh and also how did most people you know taking it find it?

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Reply 8
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tim087
um staining question was easy, I didn't like the arterioles, capillary and venules question...
the blood smear prequations I put put on disposable gloves and wear safety goggles but not sure il get mark for tat.

and also do you have any casestudy questions you have prepared??I really need them...
Reply 9
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tim087
did u get the arterioles, capillary n venules question I found it hard.

also I put disposable gloves and wear safety goggles for blood smear.

plus do u have any casestudy questions n answers for f222 this year??
How did people find the f222 exam today?
Original post by Paige-louise11
How did people find the f222 exam today?


It was one of those exams that I just can't tell how I did! Some questions were not bad and there were some that were horrible! How did you find it? And also do you have any idea what phosphate does?!
Original post by Shannonpetrie
It was one of those exams that I just can't tell how I did! Some questions were not bad and there were some that were horrible! How did you find it? And also do you have any idea what phosphate does?!


I found it okay, a few questions were worded very strange like the 8 marker on growth of organ systems etc. I believe it is for development of healthy bones and teeth well that's what I put anyway and is what it says in the textbook! did you write anaphase 2 for where non disjunction occurs?
Original post by Paige-louise11
I found it okay, a few questions were worded very strange like the 8 marker on growth of organ systems etc. I believe it is for development of healthy bones and teeth well that's what I put anyway and is what it says in the textbook! did you write anaphase 2 for where non disjunction occurs?


Yes that one really confused me! Ahh good that's what I wrote too! No I wrote prophase 1 but that was a complete guess meiosis is not my strong subject!
Original post by Shannonpetrie
Yes that one really confused me! Ahh good that's what I wrote too! No I wrote prophase 1 but that was a complete guess meiosis is not my strong subject!


im glad that was all the meiosis though!
Original post by Paige-louise11
im glad that was all the meiosis though!


Yes me too!
Hey guys,
I thought the arterioles, capillary and venules question was quite hard too because I sort of got mixed up with veins and artery. Like for venules I said they has watch pocket valves to prevent back flow but that is talking about veins. Would they mark me down for that? The exam today was quite hard
What did you guys put for that 8 mark questions talking about embryonic stem cells when they are at 8 cell stage? I started first by talking about how differentiation occurs like how genes get switched on and off, complex pathway of chemical signaling and etc. Then I gave example of a stem cell differentiating to become a nerve cell by building up on smooth endoplasmic reticulum and mitochondria for the myelin sheaf and ATP to reform rhodopsin. For an example of a reproductive I could only think of how a cell differentiates to become a sperm, I don't think I got that part right.
Original post by akhp171193
What did you guys put for that 8 mark questions talking about embryonic stem cells when they are at 8 cell stage? I started first by talking about how differentiation occurs like how genes get switched on and off, complex pathway of chemical signaling and etc. Then I gave example of a stem cell differentiating to become a nerve cell by building up on smooth endoplasmic reticulum and mitochondria for the myelin sheaf and ATP to reform rhodopsin. For an example of a reproductive I could only think of how a cell differentiates to become a sperm, I don't think I got that part right.


I panicked so much on it I just wrote about differentiation into specialised cells that then form tissues and then organs and so on, I think I have the example of the respiratory system and then said about how they form gametes but to be honest I chatted complete rubbish the whole way though!
Reply 19
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Willff
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'I chatted complete rubbish' can see why!

The exam was an easy one I think, but the 8 marker on stem cells as others said was the only challenging thing in my eyes. Overall quite a good paper.

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