D. Polarity and size.
<span>The size, polarity, and charge of a substance will determine whether or not the substance can cross the cell membrane by diffusion. The cholesterol was an example of a lipid, and is highly soluble in the nonpolar environment of the lipid bilayer. You saw, in the animation above, the cholesterol freely passing into the hydrophobic environment of the membrane. Cholesterol distributes freely in the membrane and then some fraction will dissolve in the aqueous environment of the cytoplasm. Water, on the other hand, while polar, is small enough to cross the membrane at a slow rate. Note that specialized transport proteins in certain cell membranes can provide a channel for the water, greatly increasing its rate of crossing the membrane. The lipid bilayer is much less permeable to the ion, because of its charge and larger size. As a general rule, charged molecules are much less permeable to the lipid bilayer.</span>
All cells have robosomes, DNA, cytoplasm and plasma membrane.
I hope this helps!
Answer:
All of the above.
Explanation:
Jealousy is the emotional state of feeling jealous. This is more of a negative aspect rather than a positive one, but can also sometimes be a positive aspect in a relationship.
Jealousy incites the person to have negative feelings like anxiousness, wrath, anger, possessiveness, excitement, etc. But it can also lead to an increase in the passionate feelings for the other person, which can make the individual pay more attention to the other person. In this aspect, it becomes a positive thing.
Thus, the correct answer is all of the above.
Answer:
B probably I think but I'm not sure
