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EastWind [94]
2 years ago
9

Current understandings of cell membranes incorporate the __________________________ model, where a flowing, phospholipid "sea" c

ontains mobile glycolipids, sterols, and proteins.
Select one:
a. expanding balloon
b. quilt
c. temperature filtering
d. fluid mosaic
Biology
1 answer:
Marrrta [24]2 years ago
4 0
The answer is d which is quilt
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Answer:

The two main reasons are nonpolar core of the bilayer and the active transport.

Explanation:

The membrane is structured to have two outer layers that are polar and an inner layer that is nonpolar.

If a membrane protein is exposed to the solvent, i<em>t will also have a polar side. It would be very difficult for the polar face of the membrane to move through the nonpolar core of the bilayer.</em> Therefore, this model is not feasible.

One major form of transport, active transport, moves solutes up the concentration gradient. <em>The binding of a solute and then release on another side of the membrane would only work for facilitated diffusion because it would cause a net movement of solutes down the concentration gradient.</em> It is unclear how energy could be expended to drive this process in the transverse carrier model.<em> Therefore, the transverse carrier model does not explain active transport.</em>

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3 years ago
Which of these events is a likely result of thermal water pollution​
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Answer:

D

Explanation:

The trout are disappearing from the river because of the thermal water pollution, which is causing the high water temperatures.

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Answer:

A

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The components of salt water are chemically combined together and looks throughout, forming a homogeneous mixture.

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AlekseyPX

Answer:

Photosynthetic process

Explanation:

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Cellulose chains are arranged in microfibrils or bundles of polysaccharides arranged in fibrils which in turn make up the plant cell wall.

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