OCR Biology F214 Communication, Homeostasis and Energy Wed 25 Jan 2012

any idea how we can treat type 2 diabetes if an essay question comes on it

i know how we can control it by saying eating a balanced diet or perhaps eat a diet higher in proteins but i cant explain why it would reduce the effect of diabetes

my carelessness is going to cost me marks, i meant less sugars more polysaccharides. my book says that it takes time to be digested and absorbed so spreads the time over which sugars are absorbed into blood preventing sharp spike in blood glucose conc. thanks for noticing the mistake otherwise i would have written that in the exam and lost marks

Folks, could someone please explain why the Cofactor FAD is used/required given we already have NAD ? thanks! don't forget to quote me

hey, can someone pleeeease explain how a chloroplast is adapted for it's function? can't find any notes on it thank you

hey, can someone pleeeease explain how a chloroplast is adapted for it's function? can't find any notes on it thank you

page 60 in the OCR textbook, if you dont have it then let me know

1. outer membrane : permeable to small ions
2. inner membrane: transport proteins which control exit and entry of molecules
3.stroma ( light independant) : contains necessary enzymes ( rubisco)
4. thylakoid/grana ( light dependant ) : large surface area for photosynthetic pigments, electron carriers, ATP synthase.
grana is surround by storma ( readily pass over products)
5. proteins hold the photosystem in place, DNA to code for protiens ( enzymes) and ribosomes to synthesis them.

Thank you so much

What does it mean by shunt mechanism?? :/ which process in respiration is that??

page 60 of the textbook I have talks about kidney failure

Would the definition of cell signalling be: "one cell releases chemicals-or an electrical impulse- that are detected by another cell which will facilitate a response

to get the reduced NAD formed in glycolysis from the cytoplasm into the mitochondrial matrix. as you may already know the inner membrane is impermeable to Hydrogen atoms so it can't pass through so a shunt mechanism is needed.

i think that is right