In an eukaryotic cell, the breakdown of one molecule of glucose to six molecules of `CO_2` causes formation of a total of ............ .... molecules of ATP, of which ..................... are formed in the mitochondrion.

Explanation

To solve the question regarding the breakdown of one molecule of glucose in a eukaryotic cell and the total number of ATP molecules produced, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Glycolysis**:
- The breakdown of glucose begins with glycolysis, which occurs in the cytoplasm.
- During glycolysis, one molecule of glucose is converted into two molecules of pyruvic acid.
- This process produces a net gain of 2 ATP and 2 NADH.
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