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ki77a [65]
3 years ago
9

What is the purpose of the comb? - science

Biology
2 answers:
Triss [41]3 years ago
6 0

Answer: Electrophoresis combs are used to create the wells in gels for electrophoresis, a technique that uses the electrical of molecules to separate them by their length. It often used to analyze DNA fragments. When a gel is poured a comb is inserted.

SashulF [63]3 years ago
4 0

Answer:

Its was made to create wells to hold samples in Gel Electrophoresis.

Explanation:

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With reference to the diagrams below, describe how fishes and bottom dwelling polychaete worms cope with the fluctuating salinit
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Fishes and bottom dwelling worms cope with the fluctuating salinity within estuaries over the tidal cycle with the use of transport system such as active and passive transport.

<h3>How active and passive transport system are used?</h3>

In salty water, fish and other marine organisms used active transport in which energy is used to remove salts from the body of these marine organisms because excess salts are harmful for them.

So we can conclude that Fishes use transport system such as active and passive transport to cope with the fluctuation of salt concentration.

Learn more about salinity here: brainly.com/question/20283396

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8-4 Discounting the Transverse Carrier Model. At one time, membrane biologists thought that transport proteins might act by bind
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The two main reasons are nonpolar core of the bilayer and the active transport.

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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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Answer:

c

Explanation:

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