- What is the first step of cellular respiration?
a. Two 3-carbon pyruvic acid molecules enter the mitochondria
b. Glycolysis breaks down a 6-carbon glucose molecule into two 3-carbon pyruvic acid molecules
c. Two ATP molecules are created and carbon dioxide is released as a waste product
d. High-energy electrons interact with enzymes to create ATP molecules
a. Two 3-carbon pyruvic acid molecules enter the mitochondria
b. Glycolysis breaks down a 6-carbon glucose molecule into two 3-carbon pyruvic acid molecules
c. Two ATP molecules are created and carbon dioxide is released as a waste product
d. High-energy electrons interact with enzymes to create ATP molecules