hi! the link on the first page for past papers doesnt seem to be working, has anyone got any links to past papers especially the 2012 jan one? alsooo does anyone know which of the old 280?? relates to F214 and F215? thankss
hi! the link on the first page for past papers doesnt seem to be working, has anyone got any links to past papers especially the 2012 jan one? alsooo does anyone know which of the old 280?? relates to F214 and F215? thankss
yes Homoeostasis is the maintenance of internal environment in a constant sate despite any changes on external environment such as regulation of temperature in body.
How can sicle cell anaemia be treated and which amino acid does sicle cell anemia replace (2)
hmm correct but no to treat it use do blood transfusion this was in the stretch and challenge part ,
repressor protein binds to the operator region (binding with repressor molecule)
Yeh thats right...need to add that when it binds to the operator region it also blocks the promoter region stopping RNA polymerase from transcribing the genes for Z & Y.
I've got problems with my internet so I'll be back later on. We'll carry on revising then.
Yeh thats right...need to add that when it binds to the operator region it also blocks the promoter region stopping RNA polymerase from transcribing the genes for Z & Y.
I've got problems with my internet so I'll be back later on. We'll carry on revising then.
ok but please princess kawaii come back soon and when you give the question indicate the number of marks so i know how much to write talk to you later
local current sodium ion channels open which causes sodium ions to diffuse from a region of high concentration outside the neurone to a region of lower concentration in neurone. Also, sodium ions diffuse sideways from high conc. to low. con and the movement of charged particles causes local current
these are the key points for getting the mark if i made a mistake somewhere please add or change thanks