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topjm [15]
3 years ago
5

Drag the labels onto the flowchart to show the sequence of events that occurs once the membrane potential reaches threshold. You

may use a label once or not at all.
a. membrane potential reaches threshold
b. many voltage-gated Na+ channels open
c. Na+ ions rush into the cell
d. membrane potential rises (depolarizes) quickly
Biology
1 answer:
lions [1.4K]3 years ago
7 0

Answer:

membrane potential reaches threshold

many voltage-gated Na+ channels open

Na+ ions rush into the cell

membrane potential rises

Explanation:

During resting condition, the axon membrane is polarized and has a voltage of -70mV. However, when action potential occurs after reaching the threshold level (voltage is equal to -55mV) after which the axon membrane first depolarizes and then polarizes again to reach the initial resting state. The threshold potential open the sodium voltage gates channels thereby allowing sodium ions to enter into the cell. As the sodium ion enters the cell, the membrane potential become less negative. When the membrane potential reaches the mark of +30mV, the sodium gated channels closes and potassium voltage gated channel opens.  

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Fast-moving cold fronts force the warm air ahead of them to rise more quickly than slow movers. The clouds and rain are mostly along the front or ahead of it, and heavy rain or thunderstorms are common. A slow-moving front lifts the warm air more gradually; the rain is less intense, and the clouds form along and *behind* the surface cold front.
3 0
3 years ago
An organism is discovered that thrives in both the presence and absence of oxygen in the air. Curiously, the consumption of suga
sammy [17]

Answer:

The correct answer is D. is a facultative anaerobe

Explanation:

A facultative anaerobe is the organisms that can live in the absence of oxygen but prefer to utilize the oxygen when oxygen is present in the environment.  

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3 0
3 years ago
1 Point
Lostsunrise [7]

Answer:

c

Explanation:

6 0
3 years ago
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nikdorinn [45]

Answer:

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Explanation:

3 0
3 years ago
Molluscs with a ventrally flattened foot that move via muscle contractions along this structure are called
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<h3>What are gastropods?</h3>

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Therefore, Gastropods are centrally flattened molluscs that move via muscle contractions.

Learn more about gastropods here.

brainly.com/question/18943590

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2 years ago
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