At the onset of a muscle contraction, the presence of calcium triggers the opening of the Na-K channels in the membrane. Potassium is a calcium inhibitor, so as the potassium flows out of the cell, it eventually reduces the presence of calcium. This causes the closure of the Na-K channel (negative feedback mechanism). In a hypokalemic state, the lack of sufficient K doesn't inhibit the calcium channel, and in turn doesn't properly terminate the muscle contraction at the cellular level.
Answer:
Option-B
Explanation:
A per cent daily value represents the amount of nutrient found in per serving of the food.
The percent daily value is mentioned on the nutrients fact table on the food product and is calculated by the formula:
.
The daily uptake value for fat is 65 g
The percent daily value- 20%
Let the amount of fat provided per serve be-
Therefore using the formula- 13 g of fat is provided per serve.
Thus, Option-B is the correct answer.
I believe the answer would be confidentiality.
False, i think. I believe men and women are the same in terms of exercising