Materials move within the cell 's cytosol by diffusion, and certain materials move through the plasma membrane by diffusion. ... Diffusion: Diffusion through a permeable membrane moves a substance from an area of high concentration (extracellular fluid, in this case) down its concentration gradient (into the cytoplasm). Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.The cell membrane controls what goes in and out by having protein channels that act like funnels in some cases and pumps in other cases. ... Active transport requires energy, because protein machines actively grab molecules on one side of the membrane and push them through to the other side
Answer:
The answer is C. white blood cells
Explanation:
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Answer:
They lack a nucleus, but they do have ribosomes.
Explanation:
Prokaryotes are unicellular organisms that lack organelles or other internal membrane-bound structures. Therefore, they do not have a nucleus, but, instead, generally have a single chromosome: a piece of circular, double-stranded DNA located in an area of the cell called the nucleoid.
Given what we know, we can confirm that despite the students having the same 5 nitrogen bases, all the DNA models created will not be equal.
<h3>What makes these models different?</h3>
- The models will differ due to DNA sequence.
- What this means is that the order in which the base pairs are aligned affects the outcome.
- There are well over 20+ different ways in which to arrange four nitrogen pairs to create a DNA model.
- The fifth nitrogen base adds even more possibilities.
Therefore, just as with the genetic code in all living organisms, it is made of 4 nitrogen bases. What makes the DNA of each organism distinct is the ordering and sequence of these nitrogen bases within our DNA.
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