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TLS Online TPP Program

#Question id: 2174

The major ATP-powered pump responsible for maintaining ion gradients across the plasma membrane of mammalian cells is:

#Unit 2. Cellular Organization

  1. the calmodulin-activated plasma membrane Ca2+ ATPase.

  2. the sarcoplasmic reticulum Ca2+ ATPase.

  3. the vacuolar F-class proton pump.

  4. the plasma-membrane Na+/K+ ATPase.

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TLS Online TPP Program

#Question id: 1177

#Unit 4. Cell Communication and Cell Signaling

Binding of hormone to a receptor tyrosine kinase causes all of the following, except:
TLS Online TPP Program

#Question id: 1178

#Unit 4. Cell Communication and Cell Signaling

Which of the following is a protein kinase?
TLS Online TPP Program

#Question id: 1179

#Unit 4. Cell Communication and Cell Signaling

Ras is a(n):
TLS Online TPP Program

#Question id: 1180

#Unit 4. Cell Communication and Cell Signaling

In which of the following double-mutant flies will R7 photoreceptors develop normally?
TLS Online TPP Program

#Question id: 1181

#Unit 4. Cell Communication and Cell Signaling

Serum response factor (SRF) is phosphorylated by:
TLS Online TPP Program

#Question id: 1182

#Unit 4. Cell Communication and Cell Signaling

Transcriptional activation downstream of the MAPK pathway involves: