Apoptosis

Descripción

Year 2 Test sobre Apoptosis, creado por gina_evans0312 el 03/12/2013.
gina_evans0312
Test por gina_evans0312, actualizado hace más de 1 año
gina_evans0312
Creado por gina_evans0312 hace alrededor de 11 años
1490
1

Resumen del Recurso

Pregunta 1

Pregunta
What is the main difference between apoptosis and necrosis?
Respuesta
  • In necrosis release of cell contents is controlled In apoptosis it's not
  • In apoptosis release of cell contents is controlled In necrosis it's not

Pregunta 2

Pregunta
What protein condenses during apoptosis
Respuesta
  • Chromatin
  • Actin
  • Myosin

Pregunta 3

Pregunta
What form are caspases usually found in?
Respuesta
  • Inactive, with their DED domain tails intact
  • Active, with their DED domain tails intact
  • Inactive, with their DED domain tails removed
  • Active, with their DED domain tails removed

Pregunta 4

Pregunta
What is required for caspase activation?
Respuesta
  • Addition of a DED domain tail
  • Removal of the DED domain tail

Pregunta 5

Pregunta
What are the roles of the 2 main caspases?
Respuesta
  • 3 is the initation 8 does most damage
  • 8 is the initiator 3 does most damage

Pregunta 6

Pregunta
Which of the following are survival/protector proteins that inhibit caspase activation?
Respuesta
  • BAX, BAD, PUMA
  • Bci-2, Mcl1, A1

Pregunta 7

Pregunta
What is required for ligand acitvated apoptosis?
Respuesta
  • For the receptors to contain DED domains
  • For the receptors to be bound to caspases
  • For the receptors to be expressed only in certain areas of the cell membrane

Pregunta 8

Pregunta
What protein inhibits the activation of apoptic receptors?
Respuesta
  • Flp
  • Flr
  • Fld

Pregunta 9

Pregunta
Name an apoptic receptor
Respuesta
  • Fas
  • Far
  • Fam

Pregunta 10

Pregunta
How does the receptor activate caspase 8?
Respuesta
  • By recruiting it and cleaving off the DED domain
  • By recruiting it and adding a DED domain

Pregunta 11

Pregunta
Name the two methods caspase 8 uses to destroy the cell
Respuesta
  • Activation of Caspase 3
  • Deactivation of Caspase 3
  • Damage to mitochondria, which releases Cyt. C

Pregunta 12

Pregunta
What does mitochondrial damage do to Casp 9?
Respuesta
  • Activates it
  • Deactivates it

Pregunta 13

Pregunta
What happens when essential growth factors are withdrawn from the cell?
Respuesta
  • PI3K cannot activate
  • PKB cannot activate
  • Casp 8 cannot activate

Pregunta 14

Pregunta
How does PKB inhibit apoptosis?
Respuesta
  • Releases Bad from Blc-2
  • Releases Blc2 from Bad

Pregunta 15

Pregunta
Identify methods which cells can use to evade apoptosis
Respuesta
  • Decreased Fas receptor expression
  • Inc Blc2 & decrease bax/bad expression
  • Loss of Casp 8
  • Increased Flp expression
  • Soluble fas to causes apoptosis in t-cells
  • Large amounts of Fas ligand produced to kill t-cells
Mostrar resumen completo Ocultar resumen completo

Similar

Proto-Oncogenes & Loss of Growth Control
gina_evans0312
Tyrosine Kinase
gina_evans0312
Oncogene Classification
gina_evans0312
Other Recruitment By Activated Tyrosine Kinase
gina_evans0312
Tumor Suppressors
gina_evans0312
Nuclear Signalling by Ras
gina_evans0312
Head, Neck and Back 2nd Sem- Anatomy 2nd Year- PMU
Med Student
Respiratory System 2nd Year PMU Anatomy
Med Student
Respiratory System Year 2/
Sole C
Fiction or NonFiction Year 1
Judy Stephenson
Fiction or NonFiction Year 2
Judy Stephenson