14 Fundamentals of intercellular communication

Question 1

steroid hormones r

Answer 1

hydrophobic

Question 2

steroid hormones basic

Answer 2

1/ can pass through the plasma membrane
2/ receptors are intracellular
3/ transcription factors
4/ results in the receptor moving to the nucleus –> activates the expression of specific genes

Question 3

protein kinase

Answer 3

transfers a phosphate from atp to serine, theronine, or tyrosine

Question 4

protein phosphatase

Answer 4

removes the phasphate

Question 5

G proteins: activation

Answer 5

ligand binding to the GPCR causes a G protein to associate with the receptor –> causes the G protein to release GDP and bind GTP

Question 6

cAMP

Answer 6

second messenger
GPCR –> Adenylyl cyclase –> cAMP –> protein kinase A