Edexcel A2 Biology Unit 5 (6BIO5) - 22/06/2011- OFFICIAL THREAD !

i get this

but epo causes this in BONE marrow cells. not just any old cells. is the process the same? maybe im just looking into it too much

yes. because the hormone goes into blood stream , and it only binds to cells which have the EPO receptors.
its like when adrenaline is released into blood , but only binds to the SAN node in the heard becases thats where the receptors are.

Reply 2761

Rizam

uhhh guys ... if anyone is awake ..
can someone explain the answer for question 4(c) to me ?? (june 2010 )

Is anybody awake

Original post by darkiee

Is anybody awake

you are :P
help me with june 2010 4c :colondollar:

Reply 2764

darkiee

10

Original post by Rizam

you are :P
help me with june 2010 4c :colondollar:

I did this in my mock and I got my 5 marks i thought my teacher was linient with me though

Ecoptic beat causes the Q-R-S wave to be reversed inverted

The ventricle contracts too early when they are not filled with blood

Therefore causing little or no blood to be pumped out to the pulmonary artries

Therefore there was no change at all in the pressure of pulmonary arteries during this contraction,

I dont understand the Mark scheme but I got full marks in my mock so

Reply 2765

Rizam

Original post by darkiee

I did this in my mock and I got my 5 marks i thought my teacher was linient with me though

Ecoptic beat causes the Q-R-S wave to be reversed inverted

The ventricle contracts too early when they are not filled with blood

Therefore causing little or no blood to be pumped out to the pulmonary artries

Therefore there was no change at all in the pressure of pulmonary arteries during this contraction,

I dont understand the Mark scheme but I got full marks in my mock so

Wow! this is great .. thanks alot :smile:

Reply 2766

darkiee

10

Original post by Rizam

Wow! this is great .. thanks alot :smile:

Its okay, how is revision going for you? I am nervous about this exam, the article seem to be throwing me off

Reply 2767

abuelzouz

mornig guys... good luck'all!!!

Reply 2768

darkiee

10

Original post by abuelzouz

mornig guys... good luck'all!!!

Goodluck to you 2

Reply 2769

emilylikeeee

11

Lol at this exam!
I've spent so much time going over unit 1,2,4 because of the synoptic elements, I hardly know unit haha

Reply 2770

Ayostunner

1

Im soo sooo worried, i feel like what i know is not enough :frown:

i really hope this exam goes well for me

Reply 2771

emilylikeeee

11

But I have a question- I haven't been on this thread recently... what's with all the people saying they haven't looked at the pre-release? Surely that's just making the whole thing harder for yourself...

Reply 2772

darkiee

10

Who feels ready for this exam, Chemistry wasnt so good and kind of scared for this one as well :s-smilie:

Reply 2773

Rizam

Original post by darkiee

Its okay, how is revision going for you? I am nervous about this exam, the article seem to be throwing me off

LOL! Just dont ask, I feel like I've forgotten everything I memorized :biggrin:

butttt we'll all do great InshAllah :wink:

Good luck yall !!

Reply 2774

darkiee

10

Original post by emilylikeeee

But I have a question- I haven't been on this thread recently... what's with all the people saying they haven't looked at the pre-release? Surely that's just making the whole thing harder for yourself...