Answer:DNA has three types of chemical component: phosphate, a sugar called deoxyribose, and four nitrogenous bases—adenine, guanine, cytosine, and thymine. Two of the bases, adenine and guanine, have a double-ring structure characteristic of a type of chemical called a purine.
Explanation:
<h2>here are the functions</h2>
Answer: The cell membrane is a lipid bilayer that prevents that passage of water and ions. This allows cells to maintain a higher concentration of sodium ions out the outside of the cell.
Explanation:
ATP is adenosine triphosphate , while ADP is adenosine diphosphate. Both are adenosine molecules, but ATP has three phosphate groups while ADP only has two. The energy stored in the bonds connecting the third phosphate group in ATP is significantly greater than the energy store in the other bonds.
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