Hey there! Sign in to join this conversationNew here? Join for free
    • Thread Starter
    Offline

    4
    ReputationRep:
    Please could someone possibly sum up the role of ATP in translocation(to an A Level standard). I have found from some websites that it is used to load sucrose but can't find a straightforward explanation of how. Thanks!
    Offline

    13
    ReputationRep:
    (Original post by ALevel Student 1)
    Please could someone possibly sum up the role of ATP in translocation(to an A Level standard). I have found from some websites that it is used to load sucrose but can't find a straightforward explanation of how. Thanks!
    Up to an AS or A2 standard?
    • Thread Starter
    Offline

    4
    ReputationRep:
    (Original post by M0nkey Thunder)
    Up to an AS or A2 standard?
    Either, it is not specifically demanded by my course but I still need to know about it for essay purposes to a suitable standard.
    Offline

    13
    ReputationRep:
    (Original post by ALevel Student 1)
    Either, it is not specifically demanded by my course but I still need to know about it for essay purposes to a suitable standard.
    Ah ok then. Well I know that mitochondria are abundant in companion cells and therefore generate a lot of ATP. That ATP is hydrolysed into ADP and a phosphate group. The energy released in doing so is used to pump hydrogen ions out of the cell via active transport through a proton pump. The hydrogen ions then enter through a co-transport protein down the concentration gradient with sucrose entering through it also.

    Without the ATP, hydogen ions wouldn't be able to be pumped against the concentration gradient and so sucrose wouldn't be able to enter the companion cells and no sucrose would be transported around the plant.
 
 
 
Poll
Who is your favourite TV detective?

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.