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givi [52]
3 years ago
15

10 examples of unwanted friction that can be lowered

Biology
1 answer:
olga55 [171]3 years ago
8 0

Answer:

List three ways of reducing friction. 1.Polishing the rough surface. 2.Providing all bearings or wheels between the moving parts of a machine or vehicles reduce friction and 3.allow smooth movement as rolling friction is less than sliding friction.

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How does the sodium-potassium pump contribute to the net negative charge of the interior of the cell?
Slav-nsk [51]

Answer:

By moving three positively charged ions out of the cell for two positively charged ions entered.

Explanation:

The sodium-potassium pumps are the pumps located in the plasma membrane and are involved in the active transport of sodium-potassium ions. Binding of ATP and three sodium ions to the sodium-potassium pump is followed by hydrolysis of ATP and the use of released energy to bring about the conformational change in the shape of the pump.

This allows the bound three sodium ions to move out of the cell. As the sodium ions are released out of the cell, two potassium ions enter into the cell through the pump.

Since three positively charged sodium ions are expelled out of the cell for two positively charged potassium ions entering the cell, the net effect is making the interior of the cell negative with respect to its exterior.

6 0
3 years ago
Organisms classified as fungi and plants have several similar characteristics. Which of the following are shared characteristics
Illusion [34]

Answer:

I think it is D

Explanation:

Plants are all of the above (I,II,III) but fungi are heterotrophic, but other than that they have a cell wall in their eukaryotic cells  and are multicellular, so it is most likely D.

4 0
3 years ago
Why is active transport the opposite of passive transport (osmosis and diffusion).
liraira [26]

Active transport requires the use of energy to move particles across a cell membrane, and Passive transport does not use any energy to move particles across the cell membrane.  Hope this helped!

-TTL

4 0
3 years ago
Jimmy and Joanna were walking in their backyard and noticed a mushroom growing on the outside of a dead tree. Jimmy claimed that
pogonyaev

Answer:

because it was growing on the outside of an already dead plant

Explanation:

4 0
4 years ago
Read 2 more answers
Write about prokaryotic cell​
zalisa [80]
Answer

A prokaryote is a simple, single-celled (unicellular) organism that lacks an organized nucleus or any other membrane-bound organelle. ... Prokaryotic DNA is found in a central part of the cell: the nucleoid. Most prokaryotes have a peptidoglycan cell wall and many have a polysaccharide capsule.

Explanation

Bacteria are examples of the prokaryotic cell type. An example is E. coli. In general, prokaryotic cells are those that do not have a membrane-bound nucleus. ... Besides bacteria, the cyanobacteria (blue-green algae) are a major group of prokaryotes.

Mark me as brainliest please
7 0
3 years ago
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