Which inner membrane protein directly catalyzes the reduction of o2 to h2o?

The correct answer is: Cytochrome oxidase

Cytochrome oxidase is an inner membrane protein part of the electron transport chain (Complex IV). It receives an electron from each of four cytochrome c molecules, and transfers them to O2, converting it to water. Cytochrome oxidase contributes to formation of proton electrochemical potential: it binds 4 H+, and translocates another 4 H+ across the membrane, increasing the transmembrane difference of proton electrochemical potential. This gradient is used for the ATP synthesis by ATP synthase.

d. in sexual reproduction, offspring have more chromosomes than

either parent.

asexual reproduction results in offspring which are genetically the same as the parent organism (not counting a rare mutation). sexual reproduction produces a random mixture of the genetics derived from both parents

explanation:

answer: after carbon dioxide enters the leaf through stomata it moves into the mesophyll cells where photosynthesis occurs and glucose is constructed. respiration occurs when glucose (sugar produced during photosynthesis) combines with oxygen to produce useable cellular energy.

explanation: