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Quiz

Enzyme Regulation - Allosteric Enzymes

daniel.praecox 7 questions Updated 16 Jan 2017

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Questions in this quiz (7)

  1. 1Which answer best describes Allosteric Enzymes?
    1. AAllosteric enzymes are multi-subunit proteins with one or more active site on each subunit.
    2. BAllosteric enzymes are multi-subunit proteins with one active site on their subunit.
    3. CAllosteric enzymes are proteins involved in making and breaking of covalent bonds.
  2. 2What type of graphical representation best describes the activity of Allosteric Enzymes?
    1. AHyperbolic Curve
    2. BSigmoidal Curve
    3. CLinear Regression
  3. 3Allosteric Enzymes are said to behave cooperatively, choose the answer that best describes this behaviour?
    1. AThe binding of a substrate at one active site induces a conformational change in the protein that is conveyed to other active sites and altering their affinity for substrate molecules.
    2. BThe binding of a substrate at one active site inhibits a conformational change in the protein.
    3. CThe binding of a substrate at one active site induces a conformational change in the protein that is conveyed to other active sites and does not affect the affinity for substrate molecules.
  4. 4Choose the two models that describe Allosteric Enzymes and their effects on proteins?
    1. AConcerted Model
    2. BPing-Pong Model
    3. CMichelis-Menten Model
    4. DSequential Model
  5. 5Aspartate Carbamoyltransferase ATCase is an example of an allosteric enzyme, What process is it involved in?
    1. ASynthesis of Pyrimidine – the formation of N-carbamoylaspartate.
    2. BSynthesis of Proteins - the formation of Peptide Bonds
    3. CSynthesis of Purines - the formation of Adenylate
  6. 6What enzyme acts as an allosteric inhibitor in the synthesis of pyrimidines?
    1. ACytosine Triphosphate
    2. BAdenine Triphosphate
    3. CCytosine Diphosphate
  7. 7What intermediate is formed in the synthesis of pyrimidines? What is the role of this intermediate?
    1. AAdenosine Tri Phosphate, ATP - Allosteric Inhibitor
    2. BAdenosine Di Phosphate, ADP - Allosteric Activator
    3. CAdenosine Tri Phosphate, ATP - Allosteric Activator

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Description
This quiz assesses the content covered in the notes and flash cards concerning regulation of allosteric enzymes.
Language
English
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555
History
Created on 10 Dec 2013 · updated on 16 Jan 2017
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