Answer:
D) Na+ is used to repolarize the membrane.
Explanation:
Option D is wrong choice because it is K+ which is used to repolarize the membrane not Na+.
As soon as membrane gets depolarized because of influx of Na+ due to opening of voltage gated Na+ channels simultaneous opening of voltage gated K+ channels and closing of Na+ voltage gated channels takes place. As a result of which K+ moves out of the cell leading to drawing of electrochemical gradient out of the cell.
In order to achieve resting membrane potential, more Na+ must be out of the cell and more K+ must be inside the cell. There are many leaky channels on neurons from which Na+ has tendency to leak into the cell while K+ has the tendency to leak outside of the cell. So Na+/K+ pump which is located on the membrane of neuron keeps pushing Na+ outside of the cell and K+ inside the cell so as to maintain resting membrane potential which is -70 mV.
It is the dependent variable.
If the DNA strand is mutated it can cause genetical and physical defects.
<span>Just as an extra chromosome can cause Trisomy 21 which cause Down Syndrome.</span>
The answer is the Ventral body cavity
Answer:
Carbomdioxide and water
Explanation:
Yeast is a unicellular fungus that is capable of both aerobic and anaerobic cellular respiration depending on the availability of oxygen. Yeast undergoes aerobic respiration in the presence of oxygen but undergoes fermentation (anaerobic) in the absence of oxygen.
However, like every other organism, yeast undergoes aerobic cellular respiration to yield CARBON DIOXIDE (CO2) AND WATER (H2O) as products.
