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Modification of stem into leaf like cladodes is found in certain
  • a)
    Hydrophytes
  • b)
    Heliophytes
  • c)
    Xerophytes
  • d)
    Hygrophytes
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Modification of stem into leaf like cladodes is found in certaina)Hydr...
Modification of Stem into Leaf-like Cladodes in Xerophytes

Xerophytes are plants that can survive in arid and dry environments. They have evolved certain adaptations to conserve water and reduce transpiration. One such adaptation is the modification of stem into leaf-like cladodes.

Cladodes are flattened, leaf-like structures that develop from the stem. They are photosynthetic and perform the functions of leaves. The modification of stem into cladodes is an adaptation to reduce the surface area of the plant to minimize water loss through transpiration.

Mechanism of Cladode Formation

The formation of cladodes involves the modification of the stem. The stem becomes flattened and broad, and the leaf-like structures develop from the edges of the stem. The leaves are either reduced in size or absent, and the stem takes over the function of the leaves.

Advantages of Cladodes

The modification of stem into cladodes provides several advantages to xerophytes:

1. Reduced Water Loss: Cladodes have a reduced surface area compared to leaves, which reduces the amount of water lost through transpiration.

2. Photosynthesis: Cladodes are photosynthetic and can carry out the functions of leaves. This allows xerophytes to produce food even in arid environments.

3. Storage: Cladodes can also store water and nutrients, which is useful during periods of drought.

Examples of Xerophytes with Cladodes

1. Opuntia: The cactus plant has flattened, leaf-like cladodes that perform the function of leaves. The leaves are reduced in size, and the stem takes over the function of leaves.

2. Asparagus: The asparagus plant has modified stems that form leaf-like cladodes. The cladodes are flattened and photosynthetic.

Conclusion

The modification of stem into leaf-like cladodes is an adaptation of xerophytes to survive in arid and dry environments. Cladodes reduce water loss and perform the functions of leaves, allowing plants to produce food even in harsh conditions.
Community Answer
Modification of stem into leaf like cladodes is found in certaina)Hydr...
 
A phylloclade of one or two internode is called as a cladode. Those are green and photosynthetic. Stems of some plants turns into cladode to check transpiration, defend the loss of water or to store water. All these functions are very efficient for xerophytes. So the correct option is C.
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Modification of stem into leaf like cladodes is found in certaina)Hydrophytesb)Heliophytesc)Xerophytesd)HygrophytesCorrect answer is option 'C'. Can you explain this answer?
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