Analytical balance is your answer
When water<span> molecules </span>move <span>freely </span>across the cell membrane<span>, the </span>process<span> is </span>called osmosis<span>, which is just a special type of simple diffusion.</span>
Answer:
i think issa uh.. i think issa carrot
Explanation:
The correct answer is: C) ATPase activity must be pumping calcium from the cytosol to the SR against the concentration gradient.
From the example above, we can see that the concentration of calcium is higher in the SR than in cytosol, which means that calcium is moved from the area of lower concentration (cytosol) to the area of higher concentration (SR). This movement is against the concentration gradient and that is the reason for ATPase to act. This process requires energy.