Chapter 11 And 8 Mastering Biology

Which of these is a receptor tyrosine kinase?

Which of these receptors is NOT a membrane receptor?

Which of these is a G-protein-linked receptor?

Which of these is an ion-channel receptor?

The binding of signal molecules to _____ results in the phosphorylation of tyrosines.

Which of these receptor molecules would allow Na+ to flow into the cell?

Which of these extracellular signal molecules could diffuse through a plasma membrane and bind to an intracellular receptor?

A(n) _____ is an example of a signal molecule that can bind to an intracellular receptor and thereby cause a gene to be turned on or off.

_____ is a signal molecule that binds to an intracellular receptor

Thyroid hormones bind to _____ receptors.

Steps of signaling transduction

Protein phosphorylation is commonly involved with all of the following EXCEPT _____.

Particular receptor tyrosine kinases (RTKs) that promote excessive cell division are found at high levels on various cancer cells. A protein, Herceptin, has been found to bind to an RTK known as HER2. HER2 is sometimes excessive in cancer cells. This information can now be utilized in breast cancer treatment if which of the following is true?

Which of these acts as a second messenger?

Which of these is responsible for initiating a signal transduction pathway?

What role does a transcription factor play in a signal transduction pathway?

Which of these is a membrane receptor?

A signal transduction pathway is initiated when a _____ binds to a receptor.

Which of these acts as a second messenger?

_____ catalyzes the production of _____, which then opens an ion channel that releases _____ into the cell's cytoplasm.