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Quiz on Enzyme LInked Receptors , created by stephiesteph01 on 08/06/2014.

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Enzyme LInked Receptors

Question 1 of 10

1

concerning enzyme linked receptor structure, which of the following is FALSE?

Select one of the following:

  • they may contain phospholipid lipid chains

  • they may contain amino acids

  • they consist of a single polypeptide

  • all of the above are true

  • abstain

Explanation

Question 2 of 10

1

ligand binding to an enzyme linked receptor results in...

Select one of the following:

  • carboxylation

  • hydrolysis

  • dimerisation

  • reduction

  • abstain

Explanation

Question 3 of 10

1

tyrosine kinase transfers a __A___ to a __B___ residue in the target protein

Select one of the following:

  • A = tyrosine
    B = phosphate

  • A = phosphate
    B = tyrosine

  • A = glutamate
    B = tyrosine

  • A = tyrosine
    B = glutamate

  • abstain

Explanation

Question 4 of 10

1

A phosphatase is best described as...

Select one of the following:

  • an enzyme that removes a phosphate group

  • an enzyme that inactivates PLC (phospholipase C)

  • an enzyme that removes a phosphorous group

  • an enzyme that removes a phosphate group added to proteins by kinases

  • abstain

Explanation

Question 5 of 10

1

Tyrosine kinases are not the only type of kinases. From the list below, select which two are also kinases

Select one or more of the following:

  • serine

  • lysine

  • proline

  • valine

  • glutamate (glutamic acid)

  • threonine

  • tyramine

  • abstain

Explanation

Question 6 of 10

1

receptors for growth factors are an example of which type of cell receptor?

Select one or more of the following:

  • ionotropic

  • ligand-gated

  • enzyme linked

  • nuclear

  • abstain

Explanation

Question 7 of 10

1

which of the following receptors is ASSOCIATED with an enzyme?

Select one or more of the following:

  • receptor tyrosine kinase

  • receptor serine kinase

  • receptor guanylyl cyclase

  • tyrosine kinase - linked receptor

  • abstain

Explanation

Question 8 of 10

1

dimerization activates intrinsic tyr kinase activity in the ____ part of the receptor

Select one or more of the following:

  • intracellular

  • extracellular

  • pericellular

  • none of the above

  • abstain

Explanation

Question 9 of 10

1

____A_____ tyr kinase creates different ___B___ sites for different combinations of intracellular signalling proteins which in turn determines signalling outcome

Select one or more of the following:

  • A - autophosphorylated
    B - binding

  • A - autophosphorylated
    B - docking

  • A - dephosphorylated
    B - binding

  • A - dephosphorylated
    B - docking

  • abstain

Explanation

Question 10 of 10

1

binding of each signalling proteins to phosphotyrosines is...

Select one or more of the following:

  • specific

  • degenerate

  • non-specific

  • cooperative

  • abstain

Explanation

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