Quiz
Intracellular signaling
Perguntas do quiz (8)
1Which of the following doesn't exist?
- APhospholipase C gama
- BProtein kinase B
- CProtein kinase A
- DPhospholipase C alfa
- Ephospoholipase C beta
2Inositol trisphosphate-gated calcium channels are located in...
- Aregulated exocytotic vesicles
- Bthe plasma membrane
- Cthe inner mitochondrial membrane
- Dthe smooth endoplasmic reticulum
- Eall of the above
3Which of the following statements is false?
- Aappearance of PIP3 at the plasma membrane can activate a protein kinase
- Bhydrolysis of GTP by Ras can activate a protein kinase
- Can increase of cytosolic cAMP concentration can activate a protein kinase
- Ddimerization of growth factor receptors can activate a protein kinase
- Ean increase of cytosolic calcium concentratiojn can activate a protein kinase
4Which of the following is an enzyme, one of whose substrates is a nucleotide triphosphate?
- ARas
- BThe PDGF receptor
- CProtein kinase A
- DThe insulin receptor
- EAll of the above
5Phosphotidylinositol bisphosphate is used in two different signaling pathways. these convert it, respectively into:
- AcAMP and c GMP
- BIP3 and PIP3
- CPIP2 and c AMP
- DIP3 and cAMP
- EPIP2 and PIP3
6Arrival of a scent chemical at a scent-sensitive nerve cell causes that cell to
- Agenerate action poencials
- Bopen voltage-gated sodium channels in the plasma membrane
- Copen cAMP-gated channels in the plasma membrane
- Dactivae adenylate cyclase
- Eall of these above
7Depolarization of axon terminals causes calcium ions to flow into the cytosol through
- Acalcium ATPases
- Bvoltage - gated calcium channels
- CcAMP-gated calcium channels
- Dinositol trisphosphate-gated calcium channels
- Eryanodine receptors
8Why majority of transmitters are released from cells by exocytosis?
- Abecause different set of receptors activates Gs
- BTyrosine kinases are Grb2 receptors
- CBecause exocytosis is induced by an increase of cytosolic calcium concentration
Informações
- Descrição
- Cell biology, second edition, shorter course
- Autor
- Gintarė
- Idioma
- English
- Visualizações
- 88
- Etiquetas
- Avaliação
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