A cell membrane pump helps human cells to maintain a relatively constant sodium and potassium concentration.
<u>Option: A</u>
<u>Explanation:</u>
Sodium potassium pump is a plasma membrane protein that utilizes energy ATP — Triphosphate Adenosine turning into ADP — Adenosine Diphosphate to deliver intracellular and extracellular sodium (NA+) and potassium (K+) ions sequentially. The purpose of this entire mechanism is to preserve cell equilibrium.
The extracellular medium has a greater concentration of Na while the K concentration of the intracellular fluid is lower. Proteins trap sodium ions in the cytoplasm and pump them out from the cells to preserve cell stability while preserving concentrations. Within the cells proteins inject potassium ions into the cell.
Diseases have multiple ways of infiltrating your body. Diseases can be transported through blood, air, and physical touch. Once the disease has infiltrated the body, it can spread through out the body in many ways. One of which is by feeding off of other cells energy and reproducing. The pathogens travel through the blood and irritate cells. The irritation of cells can cause the body to consume more energy, to repair the damage. This causes symptoms like tiredness, regurgitation, and sometimes in extreme cases, death.
1. <span>D. Molten material beneath Earth's crust rises to the surface.
2. </span><span>A. The mid-ocean ridges
(This is asking for what form. The Andes is a mountain range in Peru)
3. </span><span>C. Subduction causes the ocean floor to sink into deep ocean trenches.
(Subduction is when part of the ocean floor sinks under a deep-ocean trench and return the the mantle; this is caused by the movement of tectonic plates)
:)
</span>
Answer:
Yes
Explanation:
Muscular strength in general (including respiratory muscles) is developed by systematic training, so it is assumed that it has a positive effect on the lung function. Recent studies have shown that athletes have larger capacity of the respiratory system when compared to their age-matched sedentary controls.
