Q11 / 200 · NEET 2022 (Phase 1) · Botany
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) 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(a) and (d) Only
- Correct answerB(b), (c), (d) and (e) Only
- C(a), (b), (d) and (e) Only
- D(b) and (c) Only
Solution
The thorn is a hard, straight and pointed structure. In Citrus and Bougainvillea the axillary bud is modified into a thorn. Cucumber and pumpkins have long slender and coiled stem tendrils which develop from axillary buds. Stem is flattened and fleshy in Opuntia and modified to perform photosynthesis. Rhizophora shows vertically upward growing roots which is known as pneumatophore help to get oxygen for respiration. Subaerially growing stems in grasses and strawberry help in vegetative propagation.
Hence, the correct answer is option: 'B'.