Match the mode of dark reaction with their correct example .
`{:(a,"Calvin Cycle",i, "Kalanchoe"),(b,C_4"Plants",ii,"Zea mays"),(c,"CAM plants",iii,"Triticum"):}`

Options

A. a - (ii) , b - (iii) , c - (i)
B. a - (i) , b - (ii) , c - (iii)
C. a - (iii) , b - (ii) , c - (i)
D. a - (i) , b - (ii) , c - (ii)

Answer

To solve the problem of matching the modes of dark reactions with their correct examples, we will analyze each mode and its corresponding example step by step.

### Step 1: Understanding the Modes of Dark Reactions
1. **Calvin Cycle**: This is a series of biochemical reactions that occur in the stroma of chloroplasts in photosynthetic organisms. It is responsible for fixing carbon dioxide into organic molecules, specifically sugars. It is often referred to as the light-independent reaction of photosynthesis.

2. **C4 Plants**: These plants have a specialized mechanism for carbon fixation that allows them to efficiently utilize carbon dioxide, even in conditions where it is scarce. They initially fix carbon dioxide into a four-carbon compound before entering the Calvin Cycle.

3. **CAM Plants**: Crassulacean Acid Metabolism (CAM) is a water-conserving adaptation found in some plants, allowing them to fix carbon dioxide at night, which reduces water loss. This is particularly beneficial in arid environments.

### Step 2: Identifying the Examples
1. **Triticum**: This is the genus that includes wheat, which uses the Calvin Cycle for carbon fixation.
2. **Zea mays**: Commonly known as maize or corn, this is a classic example of a C4 plant.
3. **Kalanchoe**: This is a genus of succulent plants that utilize CAM for carbon fixation.

### Step 3: Matching the Modes with Examples
- **(a) Calvin Cycle** matches with **(iii) Triticum**.
- **(b) C4 Plants** matches with **(ii) Zea mays**.
- **(c) CAM Plants** matches with **(i) Kalanchoe**.

### Final Matching
- (a, iii) Calvin Cycle - Triticum
- (b, ii) C4 Plants - Zea mays
- (c, i) CAM Plants - Kalanchoe

### Conclusion
The correct matches are:
- (a) Calvin Cycle → (iii) Triticum
- (b) C4 Plants → (ii) Zea mays
- (c) CAM Plants → (i) Kalanchoe