Cellular Signaling

Which signaling molecule uses tyrosine kinase receptors?

• Acetylcholine

• Insulin

• Oestridiol

• Epinephrine (adrenaline)

Which signaling molecule uses GCPR receptors?

• Acetylcholine

• Insulin

• Oestridiol

• Epinephrine (adrenaline)

Which signaling molecule uses intracellular receptors?

• Acetylcholine

• Insulin

• Oestridiol

• Epinephrine (adrenaline)

Match the images of the different signaling types with their name.

• Autocrine

• 
• Juxtracrine

• 
• Endocrine

• 
• Paracrine

• 

Match each ligand with the correct category it belongs to!

• Acetylcholine

• Steroid

• Oestradiol

• Insulin

• Hormone

• Neurotransmitter

How are hormones and neurotransmitters different?

• Hormones are used in paracrine signaling

• Neurotransmitters are used in endocrine signaling

• Hormones act on distant cells

• Neurotransmitters work on distant cells

A __________feedback loop enhances the signal coming in.

Tags

CCSS.RI.11-12.8

CCSS.RI.9-10.7

CCSS.RL.11-12.8

CCSS.RL.8.7

CCSS.RL.9-10.7

Epinephrine triggers which secondary messenger inside a cell after binding to its receptor?

• Calcium ions

• cAMP

• Kinase

__________ sensing involves bacterial communication to determine the density of bacteria present.

Quorum sensing in bacteria involves

• exchange of ions to generate a membrane potential

• gene expression activation once reaching a threshold concentration of signaling molecules

• gene silencing in response to environmental changes