FRQ AP BIO UNIT 4 PROGRESS CHECK NEWEST
ACTUAL EXAM WITH COMPLETE QUESTIONS &
ANSWERS //VERIFIED//GRADED
A+//2026/2027
Save
Terms in this set (8)
, (a) Describe the first interaction that (a) The binding of the growth hormone on the
triggers signaling to begin in a growth factor receptor causes the activation of
target cell. the phosphorylation cascade of the proteins.
There is phosphorylation of the JAK2 protein that
causes the activation and phosphorylation of the
STAT5 protein that is essential for binding to the
glucocorticoid response elements in the
promoter region of the gene. There is
dimerization of the STAT receptor and it causes
the binding of these factors to response
elements in the nucleus.
If insulin is added to the hepatocyte culture, then
there is binding of the insulin on the insulin
receptors cells causing the activation of the
different cell signaling mechanisms. This further
causes the phosphorylation of the tyrosine
receptor and activation of the IRS protein
phosphorylation signaling mechanism. This
causes the activation of two signaling
mechanisms one involving the PI3 kinase proteins
and Akt signaling and the other involving the
activation of the MAPK and the Erk proteins
inside the cell.
In exp A it was observed that after the addition of
the growth factor there is activation and an
increase in the levels of the STAT5 protein after
phosphorylation mechanism in the cell. In the
ExpB there is an increase in the levels of the
phosphorylation kinaseB protein after activation
of the cell signaling cascade by the addition of
the insulin hormone inside the mammalian cell.
ACTUAL EXAM WITH COMPLETE QUESTIONS &
ANSWERS //VERIFIED//GRADED
A+//2026/2027
Save
Terms in this set (8)
, (a) Describe the first interaction that (a) The binding of the growth hormone on the
triggers signaling to begin in a growth factor receptor causes the activation of
target cell. the phosphorylation cascade of the proteins.
There is phosphorylation of the JAK2 protein that
causes the activation and phosphorylation of the
STAT5 protein that is essential for binding to the
glucocorticoid response elements in the
promoter region of the gene. There is
dimerization of the STAT receptor and it causes
the binding of these factors to response
elements in the nucleus.
If insulin is added to the hepatocyte culture, then
there is binding of the insulin on the insulin
receptors cells causing the activation of the
different cell signaling mechanisms. This further
causes the phosphorylation of the tyrosine
receptor and activation of the IRS protein
phosphorylation signaling mechanism. This
causes the activation of two signaling
mechanisms one involving the PI3 kinase proteins
and Akt signaling and the other involving the
activation of the MAPK and the Erk proteins
inside the cell.
In exp A it was observed that after the addition of
the growth factor there is activation and an
increase in the levels of the STAT5 protein after
phosphorylation mechanism in the cell. In the
ExpB there is an increase in the levels of the
phosphorylation kinaseB protein after activation
of the cell signaling cascade by the addition of
the insulin hormone inside the mammalian cell.
