Phospholipid bilayers are critical components of cell membranes. The lipid bilayer acts as a barrier to the passage of molecules and ions into and out of the cell. However, an important function of the cell membrane is to allow selective passage of certain substances into and out of cells.
Answer: No
Explanation:
the freezing point of salt water is lower than that of pure water, due to the presence of the salt dissolved in the water
Answer:
p = 20
Explanation:
to get p alone you have to do the oposite of what your doing with p
ex) its being divided so you would have to multiply both sides by 4 to get p alone
p = 5x4
Leaves are green because of chlorophyll. Chlorophyll is a pigment found in the thylakoid membranes of the chloroplasts in the leaves.
Simply, plants are green because they have green chloroplasts (organelles that carry out photosynthesis).