Unit 4.2-4.3 Signal Transduction Pathways

What is the analogy used to explain signal transduction pathways?

• Piano playing

• Drumming

• Singing

• Electric guitar playing

What is the function of the G-protein receptor in signal transduction pathways?

• Convert ATP to cAMP

• Release glucose from glycogen

• Amplify the message

• Dock with the ligand

What is the name of the enzyme that converts ATP to cAMP in the signal transduction pathway?

• Protein kinase

• Adenylyl cyclase

• Phosphorylase

• G-protein

What is the role of cAMP in the signal transduction pathway?

• Dock with the ligand

• Convert ATP to cAMP

• Release glucose from glycogen

• Activate protein kinase

What happens to the catalytic portions of protein kinase after being activated by cAMP?

• They become phosphorylated

• They attach to the ligand

• They release glucose from glycogen

• They turn green

What is the main function of phosphorylase in the signal transduction pathway?

• Release glucose from glycogen

• Dock with the ligand

• Amplify the message

• Convert ATP to cAMP

What is the ligand in the signal transduction pathway?

• Adenylyl cyclase

• Phosphorylase

• Protein kinase

• Epinephrine

What is the name of the protein that changes shape when the ligand attaches to the G-protein receptor?

• G-protein

• Phosphorylase

• Protein kinase

• Adenylyl cyclase

What is the effect of epinephrine on cells in the liver in the signal transduction pathway?

• Release glucose from glycogen

• Convert ATP to cAMP

• Dock with the ligand

• Amplify the message

What is the purpose of signal transduction pathways in cells?

• To move a message throughout the cell and have desired consequences

• To amplify the message

• To release glucose from glycogen

• To convert ATP to cAMP

Tags

NGSS.HS-LS1-3