Question

Leaves are modified into tendrils, hooks, pichers and bladders in
A. Sweet Pea, Cat’s Nail, Nepenthes, Utricularia
B. Sweet Pea, Cat’s Nail, Utricularia, Nepenthes
C. Nepenthes, Sweet potato, Cat’s Nail, Utricularia
D. Utricularia, Nepenthes, Cat’s Nail, Sweet Pea
E. Nepenthes, Cat’s Nail, Sweet Pea, Utricularia

Answer 1

Hint: We know that leaves are built to carry out photosynthesis. Moreover, they also have other vital roles to perform, like support, food preservation, defense, etc.

Complete Answer:
In order to fulfil roles other than photosynthesis, leaves are modified. In certain species, they are transformed into tendrils for climbing or into spines for protection. In certain plants, the petioles extend and become green for synthesising food.

Now, let us find the solution from the options-
- The whole leaf is often modified into a wire-like device called a leaf tendril, e.g., a sweet pea.
-Any of the terminal leaflets have been modified into hook-like structures in certain vines of angiosperms with compound leaves, to assist the plant in climbing, e.g., Argemone, Opuntia, Aloe, cat’s nail. Some plants; leaves are changed to form the pitcher, e.g. Nepenthes, Dischidia.
- Active trapping is involved in the trapping process in Utricularia. A modification of an underwater leaf segment is the bladder.

Thus, the correct answer is option (A) Sweet Pea, Cat’s Nail, Nepenthes, Utricularia.

Note: Some examples of modified leaves plants are the fleshy leaves of garlic and onion which are modified to store food, cacti leaves are modified to spin for defense.