Pyruvic acid must be converted into c)Acetyl CoA before the Kreb cycle can proceed.
Answer:
Organisms best suited to their environment will survive and reproduce
Explanation:
"Survival of the fittest"
The structure is a phospholipid bilayer. There are many phospholipids which contain a water loving phosphate end and a water hating lipid (fatty) end. The phosphate ends all point out words while the fatty ends are inside.
The purpose is protection of the cell as well as allowing certain molecules to enter and exit the cell
