<span>cholestrol is part of sterols / steroids which is one of the 4 classes of lipids
cholestrol characterized with 4 fused carbon rings, like all sterols do
other sterols are sex-trait hormones like testosterone etc.
other lipid groups are fats (glycerol and fatty acids), phospholipids
(phosphate head and faitty acid tails), and waxes (contain alcohol
group) </span>
Answer:
All of the above
Explanation:
The ions present in our body can move through voltage gated ions channels present in the cell. The ions are unequally distributed in the interior and exterior of the cell.
The ion gated channel may get open or close depending upon the presence of the different ions. These ions movement changes the electric potential of the cell. The ions movement results in the propagation of the nerve impulse and may cause the cell membrane stretching. The binding of the molecules to the ion channels may open or close the movement of particular ions.
Thus, the correct answer is option (d).
Answer:
Ecosystems are closed systems
Explanation:
This answer (Ecosystems are closed systems) is false because ecosystems are open systems by nature.
The influence DNA has upon the synthesis of lipids, carbohydrates and steroids can be summarized or stated by B. Proteins that DNA codes for catalyze the reactions that synthesize these compounds.
