▶️ Answer/Explanation
Photosynthesis is the process by which green plants convert light energy into chemical energy. The reactants (substances used) are water and carbon dioxide, which correspond to labels $1$ and $2$. The products (substances produced) are glucose and oxygen, which correspond to labels $3$ and $4$. This process is summarized by the equation:
$$6CO_{2} + 6H_{2}O \xrightarrow{\text{light}} C_{6}H_{12}O_{6} + 6O_{2}$$
In Row B, the substances are correctly categorized: water and carbon dioxide are the inputs, while glucose and oxygen are the outputs. Other options incorrectly list products as reactants or vice versa.
✅ Answer: (B)
▶️ Answer/Explanation
Correct Answer: B
Carbohydrates (such as glucose and starch) are produced during the process of photosynthesis. This process takes place within specialized organelles called chloroplasts found in the cells of green leaves.
▶️ Answer/Explanation
The correct answer is C.
- Comparing rates at \(20\,^\circ\mathrm{C}\): \(34.5\) (Y) is the highest value in the column.
- Comparing rates at \(30\,^\circ\mathrm{C}\): \(36.4\) (Y) is the highest value in the column.