Turn on thread page Beta

Can anyone help with this simple AS Biology? watch

    • Thread Starter

    Okay, well for my exam board, the only official revision book has no diagrams or pictures in it. Typical WJEC. It was fine for Biology 1, but it's impossible for this unit because I can't just guess what bits of the lungs or the heart or the plant cells look like from the descriptions. :curious:

    Anyway, I'm doing my homework now and stuck on what should be a simple question. Can someone just tell me which bit of the phloem is which, please.

    THIS is the question.


    not sure about part 1
    D is cell wall
    E is nucleus

    A source is something that releases sucrose into the phloem eg. leaf
    a sink removes sucrose from the phloem eg. roots

    pholem has perforated end walls and hardly any cell contents which are both adaptions
Submit reply
Turn on thread page Beta
Updated: March 19, 2011

University open days

  • University of Lincoln
    Brayford Campus Undergraduate
    Wed, 12 Dec '18
  • Bournemouth University
    Midwifery Open Day at Portsmouth Campus Undergraduate
    Wed, 12 Dec '18
  • Buckinghamshire New University
    All undergraduate Undergraduate
    Wed, 12 Dec '18
Do you like exams?

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Write a reply...
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.