Which statements describe electron transport chain events? Citrate metabolism results in the formation of one FADH2 and three NADH. Two electrons pass between cytochromes through a series of redox reactions. ATP synthase uses the energy from the redox reactions to generate ATP. NADH releases two hydrogen ions and donates two electrons to coenzyme Q.

NADH releases two hydrogen and donate two electrons to coenzyme Q.

Explanation:

Electron transport chain is the last part of aerobic respiration and the only components that uses molecular oxygen. It involve series of processes where electrons are transfer from electron donors to electron acceptors, this make Hydrogen ions accumulate within the matrix space. It occur in the mitondondrial matrix.

The NADH releases two hydrogen and donate two electrons to the coenzyme Q ( ubiquinone). The Q is lipid soluble and move through hydrophobic core of the membrane.

It received electrons from NADH and FADH2.

they float because they are less dense than the water itself

something denser than water, like a rock, will sink to the bottom

answer: a) a compound microscope has a greater magnification ability than a simple microscope.

explanation: