The purpose of the plasma membrane is to keep certain things and things out. So the correct answer to this questions is D, encloses specific structures.
Diatoms
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The “S” phase which is the phase of DNA synthesis
Answer:
La diferencia principal entre células eucariotas y procariotas es que las células eucariotas tienen un núcleo . El núcleo es donde las células almacenan su ADN , que es su material genético. ... Las células procariotas no tienen un núcleo. En cambio, su ADN flota al interior de la célula.
Cholesterol makes up cell membranes and is used to create hormones.
Cell membranes are the outer covering of the cell that protect it from the outer environment. A cell membrane is a bilayer of lipid, composed of protein and cholesterol as well. The cholesterol is essential to maintain the proper integrity of the cell membrane.
Hormones are the chemical messengers that are released at one site and they perform their function at another location of the body. Hormones can be made up of several macromolecules like polypeptides, amine acids or cholesterol. The example of hormones made up of cholesterol are: glucocorticoids, mineralocorticoids, and sex hormones.
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