AP Bio Signal Transduction Review

What is the first step of signal transduction?

• Reception

• Response

• Transduction

What is the signaling molecule & where does it bind?​

• Ligand; Enzyme​

• Ligand; Receptor​

• Substrate; Enzyme​

• Substrate; Receptor​

What is a signaling molecule called?

• Activator

• Enhancer

• Ligand

• Repressor

All cells respond to the same ligand with the same response.​

• True

• False

Which is a secondary messenger?

• ATP

• Ca²⁺​

• Hormone

• Ligand

Which of the following act as secondary messengers?​

• ATP and Ca²⁺​

• Ca²⁺ and cAMP​

• cAMP and ligand​

• Ligand and ATP​

Different cells respond to the signal in the same way.​

• True

• False

Calcium is stored in the smooth ER and allows for muscular contractions. How is calcium released from the smooth ER?​

• Active transport​

• Gated ion channel​

• Ion channel​

• Simple diffusion​

A change in the receptor can affect the responses of cell

• True

• False

A mutation in a relay molecule can affect the response.

• True

• False