Science Quiz / Biology Exam 2

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HintAnswer
Importance of Kv Channels in Plants is for
Importance of Kv Channels in Animals is for
Kv Channels # transmembrane
Kv Channel Transmembrane Voltage Sensing Domain
Voltage Sensing Domain of Kv channels acts as the ______ filter for ____
Kv Channel - Pore Domains are ____
P, S5, S6 of Kv Euk channel are homologous
______ Kv channels are with 6 Transmemb
S6 domain is similar to the ______
The S4 domain has several _____________ amino acids that act as voltage sensors
The ________ has several positively charged amino acids and acts as the voltage sensor
The S4 domain has several positively charged amion acids and acts as the ________
When there is a negative potential across the membrane, S4 is oriented to keep the gate _____
When there is a ____________ across the membrane, S4 is oriented to keep the gate closed
If the potential is positive, the change _______ the gate
S4 is made up of __________ side groups
All diffusion does not occur through the _______ or through a channel
Membrane-spanning protein that facilitates diffusion are _______
Facilitative transporters are ______ to solute
Facilitative transporters act like enzymes in that they can be
_______________________ act like enzymes in that they can be saturated
Facilitative transporters are not as fast as ________
______________ are not as fast as ion channels
Facilitative transporters, like enzymes, can be
______________ like enzymes, can be regulated
Facilitative transporters are good for ___________
There are ___________ isoforms of glucose transporters
When glucose is high in blood, _______ stimulates GLUT4 to be expressed on the plasma membrane
When ________ is high in blood, insulin stimulates GLUT4 to be expressed on the plasma membrane
When glucose is high in blood, insulin stimulates_______
GLUT4 is expressed on the _________
___________________ are found associated with membranes of cytoplasmic vessels
For GLUT4 to fuse with the membrane, no __________ is required
_______ induces fusion of GLT4 with plasma membrane
K+ conc in cell is ________, outside cell is _______
Na+ conc in cell is _____, outside cell is _____
Ca2+ conc in cell is ______, outside cell is _________ times as great
HintAnswer
Active transporters of solutes are called_______
Na+/K+-ATPase is also known as ______
Sodium Potassium Pump is only found
The sodium potassium pump transporter is
ATPase is responsible for keepigng _____ outside and _______ inside
Active transport only drives the movement of particular ions in _______ direction
Na+ ions are balanced by ___
K+ ions are balanced by _____________ of proteins and nucleic acids
The protein pump transfers __________, while __________ are pumped in during each cycle
The sodium-potassium pump is considered____________, as it creates a difference in electric charge across the membrane
Sodium potassium pump is a _________ ion pump
A P-type pump means that hydrolysis of _________ leads to __________ of the protein, which in turn changes its _______________
A _________ pump means that _____________ of ATP leads to phosphorylation of the _____________ which in turn _____________ its conformation
The proton pump to release ion, the protein must revert to ____________ for that ion
The proton pump to release the _____, the protein must revert to low affinity for that ion.
___________ are enzymes that put phosphate groups on molecules
Kinases are enzymes that put______groups on molecules
________enzymes that remove phosphates from molecules
Phosphatases are enzyme that remove____________ from molecules
The enzyme that puts the phosphate on itself is _______________ that transports the Na+ and K+ ions
Three_________bind to the pump with _________ from the cytoplasmic side
__________________ is phosphorylated and ______________ the conformation of the pump
Aspartic acid resiude is _______________ and changes the ____________ of the pump
Phosphrylation causes the pump to ________ and the affinity for ________ to decrease
When Na+ are released, _________ affinity sites for __________ are exposed
____________ bind with high affinity to the pump after ______ is released
After K+ ions bind, the pump is __________
After _______ions bind, the pump is dephosphorylayted and changes back to ___________ confirmation
After dephosphorylation, the affinity for __________ decrease and they are released
The Na+/K+ pump consumes ______ of the energy of most animal cells
The Na+/K+ pump consumes ______ of the energy of nerve cells
Ca2+-ATPase of the ER, pumps ______ from the________ into the __________
In plants there is a _____________that ___________ protons
Human H+/K+ pump is present in _______ in cells
The cells of the H+/K+ pump cause ______ to form which causes a pH of .16
Some intracellular vesicles have proton pumps that _________ protons into the vesicle to decrease the _____

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