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.
<span>Hey there! :)
Explain the types of energy transformations that occurs when a light bulb switch is turned on.
Electrical → Thermal
Electrical → Light
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</span><span>Explain the types of energy changes that occur when gasoline is burned in a car engine.
- Kinetic energy
- Thermal energy
The chemical energy changes to kinetic energy and thermal energy.
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</span><span>Explain the law of conservation of energy.
</span><span>
The law of conservation of energy states that energy CANNOT be created or destroyed. It can only change form.
Hope this helps :)
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In the final stage of transport through the Golgi apparatus, modified proteins and lipids are sorted in the trans Golgi network and are packaged into vesicles at the trans face. These vesicles then deliver the molecules to their target destinations, such as lysosomes or the cell membrane.
<span>Sea breezes and land breezes are similar in that they are both created by changes in temperature near the ground. With a sea breeze, the air over land warms (during daytime), pressure drops, and air accelerates from sea to land in response. With a land breeze, the air over land cools (during nighttime), pressure rises, and air accelerates from land to sea in response.</span>
