Turn on thread page Beta

Biology - effect of pH on catalase- HELP! watch


    Ok, as far as i know, the optimum pH of catalase is 7.5, right? So why am i getting a really fast rate for pH 11? Look at my average results:

    pH Average time (mins)
    3 20.32
    5 7.84
    7 6.62
    9 7.11
    11 6.9

    Please someone explain to me why the rate at pH 11 is so high- is the buffer reacting with the hydrogen peroxide or something?

Do you think parents should charge rent?
Useful resources

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.