Question 1 - 657
Which of these proteins do not interact with RTKs?
Question 2 - 678
Mike is a patient of Dr. Grey. Mike was diagnosed with diabetes, and wants to know what is causing the lack of transport
of glucose throughout his body and organs. Dr Grey explains that…
There is a mutation in his PLC enzyme that refrains PLC from cleaving PIP2 into DAG.
There is a mutation in his PLC enzyme that refrains PLC from cleaving PIP2 into IP3.
There is a mutation in the adaptor protein IRS that binds to RTK.
There is a mutation in the docking protein IRS that binds to RTK.
There is a mutation in the transcription factor that binds to RTK.
Question 3 - 661
Which of the following is part of the process in closing the stomatal pore?
K+ influx channel closed and K+ efflux channel open
ABA causes calcium ions influx into the cell, signaling calcium release from the vacuole
K+ influx channel opened and K+ efflux channel closed
A and B
B and C
Question 4 - 670
Order the following steps of the events leading to the activation of a Insulin receptor. a.Trans-autophosphorylation occurs.
b.Conformational change in β subunits, kinase activation c. Insulin binds to α subunits. d.Insulin receptor substrate (IRS)
None of above.
Question 5 - 667
In all the types of proteins listed below, which one(s) of them may interact with receptor tyrosine kinase (RTK)?
Only two of the above are true
All of the above are true
Question 1 - 655
Which of the following is NOT a possible consequence of deleterious mutation in the genes for either the insulin receptor
Diabetes type 1
Diabetes type 2
Cells stop responding to insulin Loss of H2O and electrolytes from the body
High blood glucose levels
A. Correct, because mutation of the gene for insulin receptor or IRS2 would not cause diabetes type 1. Diabetes type 1 is
caused by inability to produce insulin.p.633
Question 2 - 669
What is the definition of second messengers?
A substance formed outside the a cell in response to the binding of a first messenger.
A substance formed inside the a cell in response to the binding of a first messenger.
A substance formed outside the a cell and it is not in response to the binding of a first messenger.
A substance formed inside the a cell and it is not in response to the binding of a first messenger.
None of above.
Question 1 - 668
Which one of the statements about the calcium-induced calcium release occurs in a cardiac muscle cell is/are TRUE?
Small increase in intracellular amount of Ca2+ followed by the opening of calcium channel in the plasma
The opening of calcium channel on SER membrane leads to Ca2+ flooding cytoplasm and the response of cell
The response is terminated by diffusion of Ca2+ back to SER across specific calcium channel
Two of the above statements are true.
All of the above statements are true.
Question 1 - 651
A mutation that resulted in the decreased expression of the Ca2+ pump on the membrane of the SER in cardiac muscle
would affect which process, and would cause the buildup of Ca2+ where?
Termination of response, cytoplasm
Induction of Ryr, inside the SER
Flooding of cytoplasm with Ca2+, cytoplasm
Termination of response, inside to SER
Flooding of cytoplasm with Ca2+, extracellular space