1. A botanist who was studying a new plant ground up some of the leaf cells, then centrifuged the mixture. The organelles became fractionated such that the heavier fractions could produce ATP in the light, and the organelles in the light fraction could produce ATP in the dark. What do the fractions most likely contain?

Mitochondria is the cell organelle that produced the energy that is needed in the body system in form of atp, that is why it is called the power house of the cell. energy is needed by the living organisms to carry out the activities which sustain life.  if the mitochondria is destroyed atp will not be produced. if the mitochondria is destroyed, energy production will stop and the affected living organism will not have the energy to carry out the necessary life processes; this will lead to the death of the organism.

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