Answer:
The atmospheric pressure goes on decreasing as we go up above the sea-level. Therefore, the amount of oxygen also decreases at higher altitude. Due to this reason, mountaineers carry oxygen cylinders with them, while climbing high mountains
Explanation:
<span>Organisms living near hydrothermal vents have no access to light so they get their energy from chemosynthesis.
C</span>hemosynthesis<span> is the biological conversion of one or more carbon containing molecules</span><span> and nutrients into organic matter using the </span>oxidation<span> of inorganic compounds</span> or methane as a source of energy. <span>Chemosynthesis is the process by which certain microbes create energy by mediating chemical reactions.</span><span>
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Answer:
The best answer to the question: The preferential use of phosphatidylinositol and phosphatidylethanolamine in the cytoplasmic leaflet of membranes leads to increased:___ would be, D: All of the answers are correct.
Explanation:
There is still a lot of debate among scientists as to the exact way in which phospholipids are distributed between the two leaflets of a cell´s plasma membrane, but what they do know is that there are four kinds, and that phosphatidylinositol (a sterol) and phosphatidylethanolamine appear most commonly on the cytosolic, or cytoplasmic side of the membrane. They also believe that it is this particular arrangement which allows the cytoplasmic side of the membrane to be slightly negatively charged and this role will play a major part in a membrane´s ability to generate an action potential. Also, it is known that these negatively charged ends of the bilayer will allow certain proteins, positively charged ones, to be inserted, and connected to it, to become transporters, or mediators in action potentials and normal activities of cells. Finally, since fatty acids and cholesterol are associated with phospholipids, but have a tendency to be attracted to these particular two types, they tend to give the overall structure fluidity, but also permit the inner leaflet to assume its particular circular shape around the cytoplasm. This is why the answer is D.
Hi!
This branch of science is known as <em>physical science. </em>It studies the physical world, which includes things such as matter and energy.
It observes how those factors influence motion and interactions via force.
Hopefully, this helps! =)
