Biological Processes 2018 Run-through (OCR A Level Biology)

[@fimpero994]

very helpful, thank you so much

[@maellepaih4388]

Brilliant

[@joannadaniel9396]

thank you

[@yumnabarhamji1700]

Thank you very much sir

[@ningwachemjong9018]

couldn't find the link..

[@minnanasseri9578]

How do you know for q22a that the L value is 3.7

[@Mary-vp9kg]

Hi! for Q16 c why is the oxygen uptake the tangent of the graph?

[@Mary-vp9kg]

For instance ccould you not have found the rate by counting the decrease in vol of air (measured by peaks) divided by the time?

[@MrMurrayBiology]

@@Mary-vp9kg Yes thats true - they amount to the same thing. gradient = change in y axis / time

[@abdullahpatel5517]

Do I need to know the respiratory quotient for the different biological molecules?

[@viridia1526]

Yep

[@willowsmith-gc7qh]

Yes. As in the video it’s 1.0 for carbohydrates, 0.9 for proteins and 0.7 for lipids.

[@edwarddjan8319]

Mr Murray, I like your 6-mark answer on question 19, part c and your answer on question 18, part a was good aswell.

[@kameronchander]

brother reads off the ms

[@Sxlanki._x]

Erm why wouldn't he? He's checking he's telling and explaining the exact correct things to us..