During the process of acerobic respiration `ul((i))` gets oxidised and its electrons get transferred to the electron transport chain while in photosyntheis, `ul((ii))` gets oxidised to transfer molecules to the electron transport chain.

Options

A. (i)-glucose, (ii)-xanthophyll
B. (i)-carbon dioxide, (ii)-xanthophyll
C. (i)-carbon dioxide, (ii)-chlorophyll-a
D. (i)-glucose, (ii)-chlorophyll-a

Explanation

### Step-by-Step Solution:

1. **Understanding Aerobic Respiration**:
- In aerobic respiration, glucose is the primary substrate that gets oxidized.
- During the glycolysis and Krebs cycle, glucose is broken down, and two key molecules are produced: NADH and FADH2.
- These molecules carry electrons to the electron transport chain (ETC), where they are oxidized, resulting in the release of energy.

2. **Identifying the Oxidized Molecule in Aerobic Respiration**:
- The correct answer for the first blank (`ul((i))`) is **glucose**. It is oxidized during the process of aerobic respiration, leading to the formation of NADH and FADH2.

3. **Understanding Photosynthesis**:
- In photosynthesis, the process occurs in the chloroplasts where light energy is used to split water molecules.
- This splitting of water (photolysis) produces electrons, oxygen, and hydrogen ions. The electrons generated are then transferred to the electron transport chain.

4. **Identifying the Oxidized Molecule in Photosynthesis**:
- The correct answer for the second blank (`ul((ii))`) is **water**. Water is oxidized during photosynthesis to provide electrons for the electron transport chain.

5. **Final Answers**:
- Therefore, the complete statement is: During the process of aerobic respiration, **glucose** gets oxidized and its electrons get transferred to the electron transport chain, while in photosynthesis, **water** gets oxidized to transfer molecules to the electron transport chain.