Where does the chemical energy to convert adp to atp come from?

Based on the topographic map of mt. st. helens, what is the contour interval of the volcano about height is 2,950 m?

Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?

Which of these parts of the membrane large moecules pass through it ?