Option 1 states that glucose breaks down to CO2, H2O, and energy in all organisms. While glucose does break down to these products, it is not accurate to say that this occurs in all organisms. Different organisms have different metabolic processes, and not all organisms produce CO2 and H2O as byproducts of glucose metabolism. Therefore, option 1 is incorrect.

Option 2 states that glucose breaks down into ethanol, CO2, and energy in our muscle cells. This statement is incorrect. Glucose is primarily metabolized through a process called glycolysis in our muscle cells, which does not produce ethanol. Instead, it produces pyruvate, which can further undergo different metabolic pathways depending on the availability of oxygen.

Option 3 states that glucose breaks down into CO2, H2O, and energy in all aerobic tissues. This statement is correct. In the presence of oxygen, glucose is broken down through oxidative phosphorylation to produce CO2, H2O, and ATP (energy). This occurs in aerobic tissues that have access to oxygen for cellular respiration.

Option 4 states that glucose breaks down into lactate and energy in yeast. This statement is incorrect. In yeast, glucose is metabolized through a process called fermentation, which