AP Biology: Cell Communication

An example of LOCAL cell communication is:

• White blood cells bumping into each other sharing antigen info

• Neurons communicating across a synapse

• Hormones traveling through the blood stream to target tissues

An example of DIRECT cell communication is:

• White blood cells bumping into each other sharing antigen info

• Neurons communicating across a synapse

• Hormones traveling through the blood stream to target tissues

What is 'C' labeling? (See image)

• G protein

• Adenylyl Cyclase

• Kinase

• ATP

What is 'D' labeling? (See image)

• Alpha subunit

• Glycogen

• Kinase

• ATP

ATP each lose TWO phosphates to adenylyl cyclase. After losing two phosphate ATP becomes _______.

• ADP

• Adenylyl phosphate

• Protein kinase

• cyclic AMP (cAMP)

Tags

NGSS.HS-LS1-7

cAMP binds to ________ and phosphorylates the catalytic portion.

• Phosphorylase

• Adenylyl cyclase

• Protein kinase

• ATP

Tags

NGSS.HS-PS1-2

cAMP is considered a "secondary messenger" which takes the original message (from the ligand) and _____________.

• amplifies it (spreads/grows it)

• shuts it off

• simply transfers the message to one kinase molecule

An example of DISTANCE cell communication is:

• White blood cells bumping into each other sharing antigen info

• Neurons communicating across a synapse

• Hormones traveling through the blood stream to target tissues

A signal molecule that binds to a plasma-membrane protein is a

• ligand
• second messenger
• protein kinase
• receptor protein

Which of the following can activate a protein by transferring a phosphate group to it?

• cAMP
• G Protein
• protein kinase
• protein phosphatase