Ion channels are specific to a certain ion. What does the ion channel select for that makes them specific?
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Size |
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Size and Charge |
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Shape and Charge |
Ion channels are open pore and allow molecule of appropriate size and charge to pass through. Size and charge are the two main contributors for specificity.
Answer- Size and charge
Ion channels are specific to a certain ion. What does the ion channel select for that...
how does gating affect the function of ion channels? Why do proteins couple certain reactions to the hydrolysis of ATP? What are two molecular differences between the extracellular and cytoplasmic sides of lipid and/or proteins in the plasma membrane?
can some explain this?
Select the characteristics that correctly describe uniporters and ion channels. Ion channels act as enzymes. ✓ Movement of ions or molecules is more rapid through the channels than the unip Movement of ions or molecules is more rapid through the uniporters than the cha Ion channels act as pores in a membrane. ✓ Uniporters act as enzymes. Uniporters act as pores in a membrane. about us Careers privacy policy terms of use conta
What is the order in which G-proteins binds to ion channels? Select one: G-protein binds to receptor, GTP is added and activates alpha subunit, receptor is activated, the alpha and gamma complex binds to channel, channel opens GTP is added and activates alpha subunit, G-protein binds to receptor, receptor is activated, the beta and gamma complex binds to channel, channel opens. activate receptor, G-protein binds to receptor, GTP is added and activates alpha subunit, the alpha beta and gamma complex...
5 Ion Channel Simulation This question will deal with the same system as in the last question; that is, k4 You will simulate many ion channels switching between on and off states, and then verify that your simulation results agree with your answers in Problem 4. If you are stuck, please efer to the hints. Simulation Steps (i) Start by initializing an array channels of size steps n-channels, where steps-10"3 and n_channels-103. steps is the mumber of time steps for...
What are some brands that you think use selective or exclusive channels? How does channel choice, in those instances, influence consumer perceptions of value? In what situations might selective or exclusive channels add real value?
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Assume a mutation of the gene coding for the voltage-gated sodium channel resulted in channels that do not have the ball and chain part of the protein. Which of the following would you expect to see? a. A change in the ion selectivity of the channel of the mutated channels, allowing ions other than sodium to move through it. b. A change in the voltage sensitivity of the channel so that it does not open until more depolarized voltages. c....
A
certain single ion channel is selectively permeable to K+ and has a
resistance of 1.5 GI, therefore a current of potassium ions through
the channel is possible. During an experiment, the channel is open
for approximately 1.50 ms while the voltage across the channel is
maintained at 81.5 mV. How many K+ ions travel through the channel
during this time?
A certain single ion channel is selectively permeable to K+ and has a resistance of 1.15 G, therefore a...
What is a distribution channel? How does geogrpahical location, the size and shape of the product, where it is manufactured and how many are sold in a year affect your selection of a distrubution channel?