In photosynthesis directly light driven reaction are called (A)_____ while some reactions are depends on the products of light reaction (ATP and NADPH) conventinally called as (B)____

Answer

To answer the question regarding the types of reactions in photosynthesis, we can break it down into the following steps:

### Step-by-Step Solution:

1. **Understanding Photosynthesis**:
- Photosynthesis is the process by which plants, algae, and some bacteria convert light energy into chemical energy stored in glucose. This process involves two main stages: light-dependent reactions and light-independent reactions.

2. **Identifying Light-Driven Reactions**:
- The reactions that directly use light energy to produce ATP and NADPH are referred to as "light reactions." During these reactions, chlorophyll pigments in the chloroplasts capture sunlight and convert it into chemical energy.

3. **Identifying Reactions Dependent on Light Reactions**:
- The reactions that depend on the products of the light reactions (ATP and NADPH) to synthesize glucose are known as "dark reactions." These reactions do not require light directly but utilize the energy stored in ATP and NADPH produced during the light reactions.

4. **Filling in the Blanks**:
- Based on the above understanding, we can fill in the blanks in the question:
- (A) Light Reaction
- (B) Dark Reaction

### Final Answer:
In photosynthesis, directly light-driven reactions are called (A) **Light Reaction**, while some reactions that depend on the products of light reactions (ATP and NADPH) are conventionally called (B) **Dark Reaction**.

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