AP Bio Unit 4

What is a signaling molecule called?

• Activator

• Enhancer

• Ligand

• Repressor

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

A change in the receptor can affect the responses of cell

• True

• False

Tags

NGSS.HS-LS1-3

A mutation in a relay molecule can affect the response.

• True

• False

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

• True

• False

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

• Ligand; Enzyme​

• Ligand; Receptor​

• Substrate; Enzyme​

• Substrate; Receptor​

Binds to turn on or off gene expression​

• DNA polymerase

• Promoter

• RNA polymerase

• Transcription factor

Which of the following would NOT result in the inhibition of this pathway?

• A change in the shape of the receptor

• The presence of a competitive ligand

• Increase in hormone concentration

• Loss of second messenger production