Much of the energy released in catabolic reactions is captured in atp for use in other reactions. when the phosphate is transferred directly from an organic molecule to adp in order to produce atp without an energized membrane, what has occurred?
a. substrate-level phosphorylation
b. oxidative phosphorylation
c. noncyclic photophosphorylation
d. cyclic photophosphorylation

Copper has free electrons per cubic meter. a 71.0-cm length of 12-gauge copper wire that is 2.05 mm in diameter carries 4.85 a of current. (a) how much time does it take for an electron to travel the length of the wire? (b) repeat part (a) for 6-gauge copper wire (diameter 4.12 mm) of the same length that carries the same current. (c) generally speaking, how does changing the diameter of a wire that carries a given amount of current affect the drift velocity of the electrons in the wire?

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space.b. we'll know it immediately because it will be brighter than the full moon in the sky.c. we won't know about it until 600 years from now.d. none of the above.

How does an observation about an object differ from an inference about that object