BIO240 - Nov19 Review

In the following figure, "A" corresponds to:

• Depolarization

• Resting Membrane Potential

• Repolarization

• Potential Threshold

Tags

NGSS.HS-PS2-5

In the following figure, "C" corresponds to:

• Repolarization due to K+ channels opening

• Repolarization due to Na+ channels opening

• Depolarization due to K+ channels opening

• Depolarization due to Na+ channels opening

Following release into the synaptic cleft and response initiation, neurotransmitters are removed by ___________ to prevent continued stimulation.

• Diffusion

• Reabsorption

• Enzyme Inactivation

• All of the above

True or False?
The response in a postsynaptic cell to binding a neurotransmitter is always excitatory?

• True

• False

Proteins targeted for proteolysis are tagged with a chain of ________ molecules.

• phosphate

• sugar

• ubiquitin

• lipid

The ________ of a ubiquitin protein attaches to a ______ side chain of the target protein.

• N-terminus, Lysine

• C-terminus, Lysine

• N-terminus, Glycine

• C-terminus, Glycine

Signaling through the Notch/Delta pathway depends on:

• Endocrine Signaling

• Paracrine Signaling

• Synaptic Signaling

• Contact Dependent Signaling

True or False?
When Wnt signaling if OFF, B-catenin is degraded.

• True

• False

 Among genes activated by NFκB signaling is one that encodes the NFκB inhibitory protein. This is an example of:

• Positive Feedback Regulation

• Negative Feedback Regulation

• Regulated Proteolysis

• Neutral Feedback Regulation

Tags

NGSS.HS-LS1-3

Notch signaling relies on proteolysis of:

• its cytoplasmic tail

• its extracellular binding domain

• an inhibitory protein complex

• B-catenin