Unit 4 AP Bio

What is the first step of signal transduction?

• Reception

• Response

• Transduction

What is a signaling molecule called?

• Activator

• Enhancer

• Ligand

• Repressor

The ligand travels through the signal transduction path

• True

• False

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

• True

• False

What is the signaling molecule and where does it bind?

• Ligand; Enzyme

• Ligand; Receptor

• Substrate; Enzyme

• Substrate; Receptor

Which of the following act as secondary messengers?

• ATP and Ca2+

• Ca2+ and cAMP

• cAMP and ligand

• ligand and ATP

What is apoptosis?​

​

• Cell undergoing cellular division​

• Endocrine cell secreting proteins​

• Programmed cell death​

• Synthesis of ATP without glucose​

Tags

NGSS.HS-LS2-6

Binds to turn on or off gene expression​

• DNA polymerase

• Promoter

• RNA polymerase

• Transcription factor

Inhibitor that binds to the active site inhibiting substrate

• Allosteric Inhibitor

• Competitive Inhibitor

• Noncompetitive Inhibitor

• Repressor Inhibitor

A change in the receptor can affect the responses of cell

• True

• False

Tags

NGSS.HS-LS1-3