Identify the correct set of statements :
(a) The leaflets are modified into pointed hard thorns in Citrus and Bougainvillea.
(b) Axillary buds form slender and spirally coiled tendrils in cucumber and pumpkin
(c) Stem is flattened and fleshy in Opuntia and modified to perform the function of leaves.
(d) Rhizophora shows vertically upward growing roots that help to get oxygen for respiration
(e) Subaerially growing stems in grasses and strawberry help in vegetative propagation
Choose the correct answer from the options given below :
- A
(b) and (c) Only
- B
(a) and (d) Only
- C
(b), (c) (d) and (e) Only
- D
(a), (b), (d) and (e) Only
Evaluate each claim.
(a) The thorns in Citrus and Bougainvillea are modifications of the stem (axillary buds), not of leaflets. Incorrect.
(b) Tendrils in cucumber and pumpkin develop from axillary buds and are stem tendrils. Correct.
(c) In Opuntia, the stem becomes flattened and green (phylloclade), taking over photosynthesis. Correct.
(d) Rhizophora, a mangrove, develops pneumatophores (negatively geotropic roots) for aeration. Correct.
(e) Runners and stolons in grasses and strawberry are subaerial stems used in vegetative propagation. Correct.
So (b), (c), (d), and (e) are correct.
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