AQA BIOL2 Biology Unit 2 Exam - 26th May 2011

wat done same papers four times and look at mark scheme 3 times?

say for example in the upcoming paper, they ask a cheeky question like, outline the features of the symplastic pathway, what you guys write? assume its a two mark question.

Symplast pathway goes through living parts of the cell (cell surface membrance, cytoplasm etc.), this is useful as the cell can control what enters the cell (e.g. nurtrients). However, the symplast pathway does provide more resistance than the apoplast pathway. [2-3 marks]

does this mean that the apoplast pathway ( which uses the cell walls ) contains dead material, if that makes any sense ?

also, i thought that the nutrients enter the phloem, not the symplast way

Yes, the cells walls are non-living (cellulose). The symplast pathway is useful because the living parts of the cell can control what enters the cell.

cool , thankyou

what grade are you hoping to get ??

An A, doesn't everyone want an A?

Also, be prepared for a 6 marker on transport in some form or on variation. Hmmm

Hi guys, Has anyone got the human biology unit 2 jan 11 paper?

No it's my fourth time doing this exam.

An A, doesn't everyone want an A?

Also, be prepared for a 6 marker on transport in some form or on variation. Hmmm