OCR Biology A Exam Thread (Breadth - May 26, 2016 and Depth - June 7, 2016)

exactly my answer

Anyone know what the awnser to that weird ass plasmodium and erythrocrytes question was?

Yes i wrote about IVF aswell, think it is wrong though as everyone else is saying something else :/

Yeah, I believe the answer to that question was D because the biuret test should've been successful, and the benedicts and starch tests should have also been successful (but all only within the membrane.)

I wrote something about how it is indirectly transmitted through a vector,e.g.mosquito and that it is injected into the bloodstream lolol probably wrong

I said that too. I don't think it was wrong.

I got b because for the cytoplasm there was starch and amylase. The starch appeared in the iodine test but that was a tick for all of them. The amylase is an enzyme which is a protein and so should appear in the bruirets test. So u can cross out d and c. For a and b they were both the same except for b had a tick for the bruiret test and a didn't for the tissue fluid. It is b because although the starch would have been broken down my the amylase to make maltose it is a biological catalyst and so would not get used up so it should still appear in the buiret test. Therefore he answer is b. Hope this helped c

I said that viruses need DNA in the host cell inorder to survive and reproduce - there is no DNA in a red blood cell.
Plasmodium is in the red blood cell so it is protected from the bodies immune response by the antigens on the surface of the red blood cell so it can survive and reproduce otherwise it would be broken down by phagocytosis as its own antigens would be recognised as foreign.
idk about it feeding off stuff in the red blood cell, might be right but this concept is definitely correct but i am unsure about if this is what they were looking for

I got this, though I'll admit a little bit more guesswork was involved than in yours

Pretty sure you would know from GCSE Chemistry though?
It's also in the Pearson textbook I believe

I got b because for the cytoplasm there was starch and amylase. The starch appeared in the iodine test but that was a tick for all of them. The amylase is an enzyme which is a protein and so should appear in the bruirets test. So u can cross out d and c. For a and b they were both the same except for b had a tick for the bruiret test and a didn't for the tissue fluid. It is b because although the starch would have been broken down my the amylase to make maltose it is a biological catalyst and so would not get used up so it should still appear in the buiret test. Therefore he answer is b. Hope this helped c

I wrote the zoo should create an ex situ conservation.
for the cell thing I picked prophase. for W I wrote some random ******** answer :^)

i tlake dabout CITES -_-

sad times

isnt that right?
as CITES monitors trading
the Convention on International Trade in endangered species