Signal Transduction Pathways Quiz

What is the primary function of signal transduction pathways in cells?

• To amplify sound

• To transduce chemical messages into actions

• To create electrical signals

• To modify DNA

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

• It acts as a receptor

• It is a ligand that docks with the G-protein receptor

• It amplifies sound

• It modifies DNA

What happens to a protein during signal transduction?

• It is destroyed

• It changes shape or confirmation

• It becomes an electrical signal

• It is amplified

Where is epinephrine released from in the body?

• Brain

• Heart

• Adrenal gland

• Liver

What is the purpose of the amplifier in the guitar analogy?

• To change the shape of the guitar

• To make the sound louder

• To modify the strings

• To create electrical signals

What is a ligand in the context of signal transduction?

• A type of protein

• A chemical that docks with a receptor

• A sound wave

• A DNA sequence

What does the term "transduction" refer to in the context of signal transduction pathways?

• Amplifying sound

• Switching a message from outside to inside the cell

• Destroying proteins

• Modifying DNA

What is the role of the alpha subunit in the process described?

• It binds to ATP.

• It moves to a protein in the cell membrane.

• It releases glucose.

• It converts cAMP to AMP.

What happens when the ligand is no longer attached?

• cAMP production stops.

• ATP is converted to ADP.

• Glucose is released.

• Protein kinase is activated.

What is the primary role of ATP in this process?

• It acts as a ligand.

• It is converted into cAMP.

• It binds to the alpha subunit.

• It inactivates protein kinase.