Differentiate between the following pairs on the basis of what is mentioned in brackets.
i. Peepal leaf and Onion leaf (Venation)
ii. Venus flytrap and Opuntia (Leaf modification)
Answers
Answer: i. Peepal leaf : Reticulate venation
Onion leaf : Parallel venation
ii. Venus flytrap : leaf modification for capturing insects - insectivorous plants
Opuntia : Leaf spines - for protection and reducing loss of water
Explanation:
Reticulate venation - Veins in a leaf form a network of veins and veinlets, it is found in leaves of dicot plants
Parallel venation (veins run parallel to each other towards the margin or the tip of the leaf, found in leaves of monocot plants
leaf modification for capturing insects - insectivorous plants -green plants and can manufacture their own food. They grow in places where the mineral nitrogen is low in the soil. In order to meet the nitrogen requirement, they feed on insects. their leaves are modified in such a way that they can help in trapping insects.
Leaf spines - for protection and reducing loss of water - Leaves gets modified and redued in size. It becomes spiney to protect the plant from grazing animals and their spines also help in reducing the loss of water in these plants