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Which is essential for the growth of roo...

Which is essential for the growth of root tip ?

A

Zn

B

Fe

C

Ca

D

Mn

Text Solution

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The correct Answer is:
### Step-by-Step Solution: 1. **Understanding Root Growth**: - The growth of plants occurs at the tips of the roots and shoots, which are the two extreme ends of the plant. The root system grows below the soil and plays a crucial role in anchoring the plant and absorbing water and minerals. 2. **Identifying Essential Nutrients**: - For the growth of root tips, certain nutrients are essential. Among these, calcium is particularly important. 3. **Role of Calcium**: - Calcium is absorbed from the soil by the roots through osmosis. It is not present in its free form in the plant but is incorporated into the cell walls as calcium pectate. 4. **Function of Calcium Pectate**: - Calcium pectate is a component of the middle lamella of plant cell walls. It helps in holding the plant cells together, which is essential for the structural integrity of the root. 5. **Comparison with Other Elements**: - While other metals like zinc, iron, and manganese are important for various functions in plants (such as chlorophyll formation and photosynthesis), they do not play a direct role in the growth of root tips. 6. **Conclusion**: - Therefore, the essential element for the growth of root tips is calcium. ### Final Answer: Calcium is essential for the growth of root tips. ---
### Step-by-Step Solution: 1. **Understanding Root Growth**: - The growth of plants occurs at the tips of the roots and shoots, which are the two extreme ends of the plant. The root system grows below the soil and plays a crucial role in anchoring the plant and absorbing water and minerals. 2. **Identifying Essential Nutrients**: - For the growth of root tips, certain nutrients are essential. Among these, calcium is particularly important. ...
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