If you describe something as rip-roaring, you mean that it is very exciting and full of energy. INFORMAL adj ADJ n. ...a rip-roaring movie with a great array of special effects. Translation English Cobuild Collins Dictionary. See also: rip off, ripe, ripen, ripple. Add your entry in the Collaborative Dictionary.
Adenosine triphosphate (ATP), a nucleotide composed of adenine, ribose, and three phosphate groups, is perhaps the most important of the so-called energy-rich compounds in a cell. Its concentration in the cell varies from 0.5 to 2.5 mg/mL of cell fluid.
FIGURE 3 - MITOCHONDRIA. Mitochondria. Adenosine triphosphate (ATP) is the energy molecule used by all cells to do work. It is a nucleotide consisting of a. nitrogen-containing base. (adenine, thymine, cytosine, or guanine), a 5-carbon. sugar. , and 3. phosphate groups. ATP is able to store and transport chemical energy within cells.