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schepotkina [342]
3 years ago
12

The figure above shows bands of DNA that were separated during gel electrophoresis.

Biology
1 answer:
adell [148]3 years ago
7 0
I could help you if you attach a picture of the gel electrophoresis!!
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The probability of a ___________ channel being open is controlled by the membrane potential.
Anna11 [10]

Answer:

(b) Voltage gated

Explanation:

The cell membrane acts as a barrier that separates two aqueous media of different composition, the extracellular and the intracellular, regulating its composition. Most of the liposoluble drugs and solutes, when not ionized, directly cross the cell membrane through a passive diffusion process, which facilitates the passage of the medium where it is more concentrated to the one that is more diluted. The difference in concentration between the two media is called the concentration gradient, and diffusion will continue until this gradient is eliminated. According to Fick's law, the speed of this process will be much faster the higher the concentration gradient and the liposolubility of the molecule and the smaller its size.

More hydrophilic molecules, such as ions, are immiscible in membrane lipids and pass through specific specific transport mechanisms. In some cases, ions pass through hydrophilic pores called ion channels, and in others a favor of their concentration gradient is transported by binding to the transporter or transporter proteins. Both transport systems are passive and therefore do not consume energy. The great advantage is that the ion channels allow the flow of ions through a much higher speed than that of any other biological system. The flow of ions through each channel can be measured as an electric current, which is capable of producing rapid changes in membrane potential.

8 0
3 years ago
The resistance to the pesticide in insects occurred because
Gemiola [76]

Answer:

The correct answer is option B. favorable change in DNA of the insect.

Explanation:

At the point when a pesticide is first utilized, a little extent of the pest population may survive to introduction to the material because of their particular hereditary or genetic makeup. These surviving individuals pass along the gene resistance to particular insecticide or pesticide to next generation.

Upon introduction to pesticides, insects that don't have the resistance die eventually, in this manner permitting the insects with the resistance genes to endure and reproduce,creates more resistance insects.

Thus, the correct answer is option B. favorable change in DNA of the insect.

8 0
3 years ago
Read 2 more answers
HELP ASAP
irga5000 [103]

Answer:

Humans an hunt second-order consumers.

4 0
2 years ago
Read 2 more answers
PLEASE HELP ME ANSWER I MADE IT WORTH 40 POINTS
ioda

Answer:

If I am not wrong it should be B and D not entirely sure

3 0
3 years ago
Some help quick
zysi [14]

Answer:

cells

Explanation:

cells are responsible for the structures and functions

5 0
2 years ago
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