Join TSR now and get all your revision questions answeredSign up now
    • Thread Starter
    Offline

    0
    ReputationRep:
    i am struggling to answer these two questions.
    a) Why would a mutation that abolished the activity of Triose Phosphate Isomerase prevent a mirco-organism growing anaerobically using the glycolytic pathway to metabolise glucose to pyruvate as a sole energy source?
    kindly check the glycolytic pathway on the internet as i cant post it here.
    b) In strenuously exercising muscle the enzyme Lactate dehydrogenase catalyses
    the following reaction:
    Pyruvate + NADH + H+ → Lactate + NAD+
    What is the physiological function for this reaction?
    answer: for the part b it can be that the reduction of pyruvate to lactate re-generates NAD+ from NADH - allowing glycolysis to continue. but what else should i include.

    Any help would be very appreciated.
    • Thread Starter
    Offline

    0
    ReputationRep:
    Anyone??
 
 
 
Poll
How are you feeling about GCSE Results Day?

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

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