Answer:
E
its all of the above
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Thylakoids, which are chloroplasts in the mesophyll cells of a leaf
Answer:
Explanation:
Protein deeply embedded in the bilayer are called integral membrane proteins. Most of this integral membrane proteins span the whole bilayer and they are called Transmembrane protein.
Because many molecules and ions can not pass through the hydrophobic core of the cell membrane they need a carrier mediated transport to go in and out of the cell. Transmembrane protein serves as channels, receptors (hormones, growth factors, neurotransmitter), tissue specific antigens, ion channels, membrane based enzymes etc that moves in and out of the cell.
If the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume. When this happens, the cell must divide into smaller cells with favorable surface area/volume ratios, or cease to function. That is why cells are so small.
simpler answer: Cells are small because they need to keep a surface area to volume ratio that allows for appropriate intake of nutrients while being able to eliminate the cells waste.
It was never the elicit come in the stimulant
