Question

How is voltage sensing achieved by the voltage gated K+ channels? Do you expect this system...

How is voltage sensing achieved by the voltage gated K+ channels? Do you expect this system to work in other voltage gated channels?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
During action potentials in the heart, the following occurs in order: a)voltage-gated K+ channels quickly repolarize;...
During action potentials in the heart, the following occurs in order: a)voltage-gated K+ channels quickly repolarize; voltage-gated Na+ channels slowly depolarize; voltage-gated calcium channels slowly depolarize; voltage gated K+ channels quickly repolarize b)voltage-gated K+ channels quickly repolarize; voltage-gated Na+ channels quickly depolarize; voltage-gated calcium channels slowly depolarize; voltage gated K+ channels quickly repolarize c)voltage-gated K+ channels slowly repolarize; voltage-gated Na+ channels slowly depolarize; voltage-gated calcium channels quickly depolarize; voltage gated K+ channels slowly repolarize d)voltage-gated K+ channels quickly repolarize; voltage-gated...
Draw what an action potential would look like if you inhibited the voltage-gated K+ channels.
Draw what an action potential would look like if you inhibited the voltage-gated K+ channels.
Dendrotoxins, produced by the mamba snakes (Dendroaspis), are inhibitors of the voltage-gated K+ channels. What phase...
Dendrotoxins, produced by the mamba snakes (Dendroaspis), are inhibitors of the voltage-gated K+ channels. What phase of the action potential would this toxin affect? How would it affect ion permeability during this phase? How would ion movement be affected?
Some vanillotoxins, present in the venom of some spiders such as tarantulas, inhibit voltage-gated K+channels, preventing...
Some vanillotoxins, present in the venom of some spiders such as tarantulas, inhibit voltage-gated K+channels, preventing them from opening. Q: Will exposure to vanillotoxin make this neuron more likely or less likely to fire an action potential?
5) A new drug has been discovered that completely opens the voltage-gated potassium channels. If this...
5) A new drug has been discovered that completely opens the voltage-gated potassium channels. If this drug is used experimentally on an isolated axon, the membrane potential can be easily measured. Assume that this experiment provided the following results. The extracellular Na+ is 145 mM and the extracellular K+ is 4mM, the measured membrane potential in the presence of the drug is -94mV. Using this information, calculate the intracellular K+ concentration. To solve this equation, you will need to use...
For each of these 3 channels, describe where they are found, how they work, and the...
For each of these 3 channels, describe where they are found, how they work, and the role they play in physiology: 1) the cardiac ryanodine channel, 2) the voltage gated calcium channel on neurons, and 3) the dihydropyridine ryanodine channel.
Nicotinic acetylcholine receptors are _________ receptors that cause the opening of ________. A. direct ligand-gated; K+...
Nicotinic acetylcholine receptors are _________ receptors that cause the opening of ________. A. direct ligand-gated; K+ channels B. G protein coupled; K+ channels C. direct ligand-gated; Na+ channels D. G protein coupled; Na+ channels Muscarinic acetylcholine receptors are _________ receptors that cause the opening of ________. A. G protein coupled; Na+ channels B. direct ligand-gated; K+ channels C. direct ligand-gated; Na+ channels D. G protein coupled; K+ channels your Aunt Selena is very considered about her wrinkles. Though you try...
Channels of the TRP family are required for sensing stimuli in many organisms. TRPQ is member...
Channels of the TRP family are required for sensing stimuli in many organisms. TRPQ is member of this family and opens in response to heat. TRPQ is a nonspecific cation channel and is found in the sensory neurons that detect heat. Sensory neurons like other neurons can fire action potentials. Suppose that you conduct an experiment with a type of worms that have TRPQ channels in their sensory neurons. You exposed the worms to heat; 1. Ca++ : a. flows...
1. If you used the voltage clamp to determine the peak Na current at a membrane...
1. If you used the voltage clamp to determine the peak Na current at a membrane potential of -10 mV, how would you then calculate the peak Na conductance? 2. The K+ current increases as the membrane potential is clamped at increasingly positive potentials? One reason for this is that increasing activation of voltage-dependent K channels results in an increase in gK. What is the other reason?
2. You have a muscular dysfunction that lacks T-tubules. How might this affect muscle contraction? 3....
2. You have a muscular dysfunction that lacks T-tubules. How might this affect muscle contraction? 3. You have a muscular dysfunction that lacks sarcoplasmic reticulum. How might this affect muscle contraction? 4. You have a muscular dysfunction that lacks voltage-gated channels. How might this affect muscle contraction? 5. You have a muscular dysfunction that lacks chemically-gated channels. How might this affect muscle contraction?