Turn on thread page Beta
    • Thread Starter
    Offline

    10
    ReputationRep:
    Question:

    Give three advantages of the thickening spiral arrangement of the xylem vessels rather than a continuous thickening arrangement.

    Can't think of any, can someone come up with any?

    Cheers
    Offline

    15
    ReputationRep:
    Xylem is the main supporting structure in the plant stem and root. One advantage of a spiral arrangement in the stem is that it has greater resilience against the forces encountered above soil level, which are mainly horizontal in direction i.e. wind.

    Thinking teleologically, I would imagine, knowing that xylem has the function of transport of water nd minerals, that this function is facilitated in some way by a spiral thickening arrangement -improved capillarity ?? - sorry can't think of a specific second advantage!

    Mukesh.
 
 
 
Reply
Submit reply
Turn on thread page Beta
Updated: February 6, 2017

2,216

students online now

800,000+

Exam discussions

Find your exam discussion here

Poll
Should predicted grades be removed from the uni application process

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