OCR Biology F214 Communication, Homeostasis and Energy Friday 22 June 2012

Maybe I made that bit up

Same! Hopefully hes more of a lead in Season 3

<3 the walking dead , except its scary

That is all completely correct and logical - it's just whether or not that's what they were looking for in the mark scheme, annoyingly with OCR its not whether or not you're right a lot of the time, just whether you've written what they have! Aggravating, but what you put does make a lot of sense!

This is a much more interesting answer than I put and its definitely right, but like somebody said depends what OCR want! I just said it prevents cyclic photophosphorylation meaning there is less ATP available in the light-independent stage so less conversion of GP to TP. Not sure if its a relevant answer.

Id imagine a mark for no cyclic photophosphorylation and maybe a mark for what you put OR for what I put, it was only 2 yeah?



Got me panic'd then haha! Cool, looks like you have all 5 bagsed up nicely.

Oh, by the way, what did people put for the gap; synapse or synaptic cleft?

1) Was the question about the pink marking on the plant about respiration or photosynthesis?

2) Was the question about the graph with X and talking about biological processes in relation to photosynthesis or respiration?

Think I read those two wrong!

3) Whats the process when CO2 is produced?

4) Products of light dependant?

the question on yeast was it pyruvate , ethanal , products ethanol and NAD+(reduced NAD) , and the plant why need it i said energy needed in the form of ATP, active transport and like division mitosis?

I put co2 for one of the products ?
the plants needs it to re oxidise the reduced NAD so it can return to glycolysis , allowing glycoloysis to continue by accepting hydrogens from pyruvate ?

I put co2 for one of the products ?
the plants needs it to re oxidise the reduced NAD so it can return to glycolysis , allowing glycoloysis to continue by accepting hydrogens from pyruvate ?

I'm actually pretty sad I didn't do this paper - it sounds pretty fair. No stupid respiration experiments like in January...

1) they were talking about respiration in plants

2)I talked about how the rates of photosynthesis and respiration varied in relation with one another and with the increasing light intensity.

3) I just put 'respiration' but people have written variations on the theme (i.e. Krebs/aerobic)

4) ATP O₂ and reduced NADP

Is it 2 ATPs?

I put CO2 as well Along with ethanol.
Was I too vague saying it allows enegry to continue being released in the form of ATP so that cells do not die?



I did that for a mock, got zilch point. Terrible question!

I did that for a mock, got zilch point. Terrible question!

hmm I dunno ? how many marking points was the question ? i suppose the overall reason is to keep making ATP but you didnt mention how this happened , so i dunno

the question on yeast was it pyruvate , ethanal , products ethanol and NAD+(reduced NAD) , and the plant why need it i said energy needed in the form of ATP, active transport and like division mitosis?