Atp synthase is the protein complex
a. transfers electrons to oxygen in the final step of the respiratory chain.
b. rotates when atp is hydrolyzed in the mitochondrial matrix.
c. captures the potential energy of the proton gradient in the intermembrane space as the chemical energy in phosphate bonds of atp.
d. transfers electrons from the inner mitochondrial space to the mitochondrial matrix. e. creates a proton-motive force when glucose is oxidized.

8) animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. d) a dog is getting hot in the sunlight, so he moves to a shaded area.