Question

Glycolysis requires ATP and yet is an important step in cellular respiration - the process by which we make ATP. How can this be?

		Glycolysis requires a net ATP input but produces GTP, which is needed for the rest of cellular respiration
		Glycolysis results in a net ATP output
		Glycolysis is not part of respiration, it is only used in fermentation
		Glycolysis requires a net ATP input, but produces carbon dioxide, which is needed for the rest of cellular respiration

Answer 1

Answer:- Glycolysis result in a net ATP output

Glycolysis is a cytoplasmic pathway which degrade down glucose into two three-carbon compounds and gives out energy.

In glucolysis, input for 1 glucose molecule is 2 ATP, and the output is 4 ATP and 2 NADH and 2 pyruvate molecules. it is critical that NADH is recycled back to NAD+ in cells to keep glycolysis running.so in the process of glycolysis there is net gain of 2 pyruvate molecules, 2 ATP molecules, and 2 NADH molecules for the cell to use for energy.

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