Please help:

In glycolysis followed by either lactic acid or alcoholic fermentation produce _____ ATP molecules, while cellular respiration using oxygen produces ____ ATP.
1) 2,8
2) 4,2
3) 2,4
4) 2,38
Thanks a million!

To determine the number of ATP molecules produced in each process, let's break down the steps involved:

1. Glycolysis: In this step, glucose is broken down into two molecules of pyruvate. During glycolysis, a net of 2 ATP molecules are produced. So the answer options that include 2 as the first number are potential answers.

2. Fermentation: Fermentation occurs when an organism undergoes anaerobic respiration (i.e., without the presence of oxygen). There are two types of fermentation: lactic acid fermentation and alcoholic fermentation. Both produce a small amount of ATP compared to cellular respiration. Lactic acid fermentation produces 2 ATP molecules, while alcoholic fermentation produces 2 ATP molecules as well. So the answer options that include 2 as the second number are potential answers.

3. Cellular respiration: This process occurs in the presence of oxygen and involves several steps, including the Krebs cycle and the electron transport chain. In total, cellular respiration produces a net of 38 ATP molecules. Therefore, the answer option that includes 38 as the second number is a potential answer.

Now, let's compare the potential answers:

1) 2, 8
2) 4, 2
3) 2, 4
4) 2, 38

By considering the information above, we can conclude that the correct answer is option 4) 2, 38. This aligns with the ATP production during glycolysis followed by cellular respiration with oxygen.