The mismatched pair among the followings is

Options

A. pericycle-lateral roots
B. endodermis-casparian bands
C. autumn wood- vessels with larger diamete
D. conjunctive parenchyma- cambium for secondary growth

Answer

To determine the mismatched pair among the given options, we will analyze each pair step by step.

### Step 1: Analyze the first pair - Pericycle and Lateral Root
- **Pericycle**: This is a layer of cells in the root that is responsible for the formation of lateral roots. It is located just inside the endodermis.
- **Conclusion**: This match is correct as the pericycle does lead to the formation of lateral roots.

### Step 2: Analyze the second pair - Endodermis and Casparian Bands
- **Endodermis**: This is the innermost layer of the cortex in roots and surrounds the vascular bundles. It is made up of barrel-shaped parenchymatous cells.
- **Casparian Bands**: These are strips of suberin found in the cell walls of the endodermis that regulate the flow of water and nutrients.
- **Conclusion**: This match is also correct as the endodermis does have Casparian bands.

### Step 3: Analyze the third pair - Autumn Wood and Vessels with Larger Diameter
- **Autumn Wood**: This refers to the wood formed during the autumn season when the cambium is less active.
- **Vessels with Larger Diameter**: In autumn, the cambium is less active, leading to the formation of smaller diameter vessels.
- **Conclusion**: This match is incorrect because autumn wood is characterized by vessels with smaller diameters, not larger.

### Step 4: Analyze the fourth pair - Conjunctive Parenchyma and Cambium for Secondary Growth
- **Conjunctive Parenchyma**: This is the parenchyma tissue that is found between the xylem and phloem in the vascular bundles.
- **Cambium for Secondary Growth**: The cambium is responsible for the secondary growth, producing secondary xylem and phloem.
- **Conclusion**: This match is correct as conjunctive parenchyma is associated with cambium activity for secondary growth.

### Final Conclusion
The mismatched pair among the given options is the third pair: **Autumn Wood and Vessels with Larger Diameter**.

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