The time between 7 and 8 o’ clock , correct to the nearest minute, when the hands of a clock will from an angle of 84° are :

#Question id: 1166

#Unit 4. Cell Communication and Cell Signaling

In muscle, glycogen phosphorylase kinase can be activated by nerve stimulation even in the absence of hormonal signals. Nerve stimulation alone results in activation of glycogen phosphorylase kinase as a result of:

#Question id: 1167

#Unit 4. Cell Communication and Cell Signaling

After a meal, when blood glucose rises, circulating insulin binds to insulin receptors on various cell types and reduces blood glucose levels by:

a. fusion of intracellular vesicles containing GLUT4 glucose transporters with the plasma membrane.

b. stimulation of the conversion of glucose to glycogen.

c. inhibition of glucose synthesis from smaller molecules.

Which of the following combination is correct?

#Question id: 1168

#Unit 4. Cell Communication and Cell Signaling

Latent TGFβ is converted to mature TGFβ by:

#Question id: 1169

#Unit 4. Cell Communication and Cell Signaling

A loss-of-function mutation in which of the following would inhibit TGFβ signaling?

#Question id: 1170

#Unit 4. Cell Communication and Cell Signaling

A gain-of-function mutation in which of the following would promote malignancy in cells whose proliferation is inhibited by TGFβ?

#Question id: 1171

#Unit 4. Cell Communication and Cell Signaling

Which of the following receptors binds TGFβ?