Cell and Molecular Biology Exam

What is the role of epinephrine in the body?

• It increases heart rate and metabolism.

• It decreases blood pressure.

• It has no effect on hunger.

• It is a type of neurotransmitter.

Tags

NGSS.HS-LS1-3

What happens during ligand-receptor interactions?

• The ligand binds to the receptor.

• The receptor is destroyed.

• The ligand is released into the bloodstream.

• The receptor changes shape.

What is the first messenger in the signaling pathway?

• cAMP

• Epinephrine

• ATP

• Glucose

What is the process of gene expression?

Tags

NGSS.HS-LS1-1

What is the effect of Botox on muscle cells?

• It prevents muscle contraction.

• It enhances muscle contraction.

• It has no effect on muscle cells.

• It increases the release of acetylcholine.

What is receptor down-regulation?

How do cells down-regulate receptors?

Tags

NGSS.HS-LS1-3

What is the role of clathrin in receptor endocytosis?

What happens during desensitization of receptors?

Tags

NGSS.HS-LS1-3

What are agonists and antagonists?