Edexcel 6BIO2 ~ 3rd June 2013 ~ AS Biology

Are you sure? The spec does say "Explain the importance of water and inorganic ions" doesn't this refer to transpiration and uptake of water?

Yeah - it's ok as well . I'm going to do the same : re-read all my notes and make sure everything's fully understood and then going to have a look through the papers again . I've also got AQA Chemistry Unit 2 on Tuesday .

What exam board are you for Chemistry ? How's your Chemistry revision going ?

Nitrate calcium magnesium and water ions and their important to plants

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Are you sure? The spec does say "Explain the importance of water and inorganic ions" doesn't this refer to transpiration and uptake of water?

It's easier to obtain pluripotent cells than totipotent cells as there are more of pluripotent cells available.

Yep mostly about the pathways (apoplast and symplast) and transpiration You also need to learn about the environmental factors that affect the rate of transpiration (i.e. light intensity, temperature, humidity etc...), how water enters the xylem vessels and root pressure that's pretty much it!

Around 66/67 I need 112 ums, best of luck!

Yep mostly about the pathways (apoplast and symplast) and transpiration You also need to learn about the environmental factors that affect the rate of transpiration (i.e. light intensity, temperature, humidity etc...), how water enters the xylem vessels and root pressure that's pretty much it!

Could someone explain how with the totipotency practical, with tissue samples what I should use to cover the agar?

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foil, cling film. cling film.more appropiate to let light in.

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what is meant by suitably prepared petri dish?

Cool, and is it always ex plants?

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yep always say explant, because thats what was put in the mark scheme.

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Not like, say they talk about plant tissue samples.... Still explant?

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yh say explant.

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when do the spindle fibres attach onto the centromeres of chromosomes? During Prophase or Metaphase?

when do the spindle fibres attach onto the centromeres of chromosomes? During Prophase or Metaphase?