Which statements best describe the first stage of cellular respiration?
check all that apply.
1.the stage happens in cytoplasm.
2.the stage happens in mitochondria.
3.oxygen combines with small molecules.
4.glucose is broken down.
5.energy is released.

 A,D, E, A: The stage happens in cytoplasm. D: Glucose is broken down. E: Energy is released.

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the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation: