BIOL 4100 Exam 5 Review Questions With Complete Solutions

BIOL 4100 Exam 5 Review Questions With Complete
Solutions

Activation of mTOR pathway
a. Will lead to phosphorylation of Raf
b. Will lead to phosphorylation of STAT
c. Will lead to phosphorylation of 4E
d. Will lead to phosphorylation of 4E-BP Correct Answers d.
Will lead to phosphorylation of 4E-BP

Adrenaline signaling is an example of
a. autocrine signaling
b. juxtacrine signaling
c. endocrine signaling
d. paracrine signaling Correct Answers c. endocrine signaling

Apoptotic cells produce "eat me" signals, which include
_________ of cell surface ____________________. Correct
Answers gain; phosphatidylserines

Autocrine signaling Correct Answers is when secreted
mediator regulates the cell that secreted it

Ca2+/Na+ pump in light sensitive cells is an example of
a. ion selective channel
b. uniporter
c. simporter
d. antiporter Correct Answers d. antiporter
-review this answer-

Caspases are activated when caspase is

, a. binds GTP
b. dephosphorylated
c. caspases are always active and do not require activation
d. hydrolyses GTP
e. cleaved
f. phosphorylated Correct Answers e. cleaved

Consider apoptosis pathway in C.elegance. If the gene _______
is mutated so that it does not function, no cells will die during
development. Correct Answers ced-3

Consider exclusively MAP pathway. Activation of which kinase
(kinases) in MAP pathway will stimulate mitosis? Only pick
kinases!
Ras?
Raf?
Erk?
Mek?
MAP?
Receptor bound tyrosine kinase?
mTORC1?
mTORC2?
Ark?
JAK? Correct Answers WILL stimulate - Raf, Erk, Mek,
MAP, receptor tyrosine kinsase

will NOT stimulate/not a part of pathway - Ras, mTORC1,
mTORC2, Ark, JAK

Damaged DNA is sensed by a complex of proteins that activate
the protein kinase