The difference in concentration between solutions on either side of a cell membrane is a concentration gradient.
In the field of biology, a concentration gradient can be described as a difference in the concentration of molecules inside and outside of a cell. It is due to concentration gradient that molecules move into and out of a cell through the cell membrane.
Some molecules move from an area of higher concentration gradient to an area of lower concentration along the concentration gradient. Diffusion is an example of such a process.
On the other hand, some molecules move from an area of lower concentration to an area of higher concentration against the concentration gradient. Active transport is an example of such a process.
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Answer:
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They get energy by preforming chemical reactions within the cell
Answer:
True
Explanation:
Unlike eukaryotic cells, which have a nucleus that contains the genome and is separated from the cytoplasm by a membrane, the prokaryotic nucleoid is not membrane-bound and is not considered an organelle. The nucleoid is simply the area within a prokaryiotic cell where its DNA is located.
The right answer is: <span>Kingdom Plantae
The term "plants" includes plant organisms, mostly terrestrial, consisting of an upper leafy stem and anchored (planted) in the soil.
Plantae kingdom contains only non-motile multicellular nucleated organisms.
Not all of the Animalia are non-motile (spermatozoids and some immune cells are mobile).
Protista Are unicellular organisms, not multicellular.</span>
