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.
Cellular <u>Metabolism</u> is all of the chemical reactions in cells.
- <u><em>Definition:</em></u><em> Cell metabolism is the series of processes that take place in living organisms to sustain those organisms.</em>
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Nucleotides are the building blocks ofnucleic acids; they are composed of three subunit molecules: anitrogenous base, a five-carbon sugar (ribose or deoxyribose), and at least one phosphate group.
Answer:
No
Explanation:
A renewable resource is one in which the rate at which its being replenished is higher than the rate at which it is being used up.
For example, the air we breathe is a renewable resource because it doesn't get used up as we draw it.
- If the rate of drawing down a ground water supply exceeds the rate of its recharge, then such a water source is non-renewable.
