Turn on thread page Beta
    • Thread Starter
    Offline

    0
    ReputationRep:
    Please can someone answer these questions...

    1) what is the chemical component of biuret reagent and which of these chemicals are hazardous?

    2)Why does the procedure include making observations with biuret as a layer on top of the sample before mixing?

    3)What is the biochemical explanation for the positive result with the biurent test?

    THANK YOU
    Offline

    15
    ReputationRep:
    Clearly expained here:-

    http://brilliantbiologystudent.weebl...r-protein.html


    Think about:
    What colour is copper sulphate (hydrated = in water)? (What is the test for water?)

    A chelate is formed when a metal ion reacts with a number of other elements/ions. A chelating agent is one that removes specific metal ions from a solution (used in medicine to remove poisons sometimes)

    Why is sodium hydroxide called caustic soda and potaasium hydroxide called causic potash?

    THINK AND WORK OUT YOUR ANSWERS - it will help you answer other Qs in future - don't just memorise!!

    M (Science tutor)
 
 
 
The home of Results and Clearing

3,195

people online now

1,567,000

students helped last year

University open days

  1. London Metropolitan University
    Undergraduate Open Day Undergraduate
    Sat, 18 Aug '18
  2. Edge Hill University
    All Faculties Undergraduate
    Sat, 18 Aug '18
  3. Bournemouth University
    Clearing Open Day Undergraduate
    Sat, 18 Aug '18
Poll
A-level students - how do you feel about your results?

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.