Type of oxidation in respiration is by

Options

A. Addition of hydrogen to glucose
B. Removal of only protons from glucose
C. Removal of only electrons from glucose
D. Removal of hydrogen from glucose

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the type of oxidation that occurs during respiration. We need to identify the specific process involved in the oxidation of substrates during respiration.

2. **Identifying the Process of Respiration**: In humans and many other organisms, the process of respiration is known as cellular respiration. This process is crucial for converting glucose into usable energy.

3. **Role of Glucose**: The primary substrate used in cellular respiration is glucose (C6H12O6). During respiration, glucose is broken down to release energy.

4. **Oxidation Process**: The oxidation that occurs during cellular respiration involves the removal of hydrogen from glucose. This process is essential as it leads to the formation of ATP (adenosine triphosphate), which is the energy currency of the cell.

5. **Chemical Reaction**: When glucose undergoes oxidation, the hydrogen atoms are removed. This can be represented as:
- C6H12O6 → Energy (ATP) + CO2 + H2O
- Here, hydrogen is removed from glucose, contributing to the formation of energy.

6. **Elimination of Incorrect Options**:
- The addition of hydrogen to glucose is incorrect because, during respiration, hydrogen is actually removed.
- The removal of only a proton or an electron is also incorrect because the oxidation involves the complete removal of hydrogen atoms, not just parts of it.

7. **Conclusion**: The correct type of oxidation in respiration is the removal of hydrogen from glucose.

**Final Answer**: The type of oxidation in respiration is the removal of hydrogen from glucose.

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