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Neuronal Function and Second Messengers Quiz

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Neuronal Function and Second Messengers Quiz

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Questions and Answers

What is the primary determinant of the amount of protein present in cells?

The rate of post-translational modification

The rate of translation of RNA into protein

The rate of protein degradation

The rate of transcription of DNA into RNA (correct)

What is the role of CREB in unstimulated cells?

It activates transcription without phosphorylation

It is fully phosphorylated and has high transcriptional activity

It inhibits RNA polymerase synthesis

It is not phosphorylated and has little or no transcriptional activity (correct)

Which signaling pathways converge to activate kinases that phosphorylate CREB?

NF-kB, Notch, and Hedgehog pathway

PKA, Ca2+/calmodulin kinase IV, and MAP kinase (correct)

AMPK, mTOR, and Wnt pathway

AKT, JAK-STAT, and TGF-beta pathway

What allows CREB to bind co-activators and stimulate RNA polymerase for RNA synthesis?

<p>Phosphorylation</p> Signup and view all the answers

What is the time frame required for the synthesis of new proteins by second messengers?

<p>30–60 minutes</p> Signup and view all the answers

Neuronal Function and Second Messengers Quiz

Choose a study mode

Podcast

Questions and Answers

What is the primary determinant of the amount of protein present in cells?

What is the role of CREB in unstimulated cells?

Which signaling pathways converge to activate kinases that phosphorylate CREB?

What allows CREB to bind co-activators and stimulate RNA polymerase for RNA synthesis?

What is the time frame required for the synthesis of new proteins by second messengers?

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