Question

In Passiflora, the tendrils are modification of
A. Axillary buds
B. Upper leaflets
C. Whole leaves
D. Stipules

Answer 1

Hint: Passiflora, recognised also as the ardour plant life or ardour vines, is a genus of about 550 species of flowering plants, the short genus of the family Passifloraceae. They are generally tendril-bearing vines, with a few being shrubs or timber. They can be woody or herbaceous. Passion vegetation produces normal and generally showy vegetation with an extraordinary corona. The flower is pentamerous and ripens into an indehiscent fruit with several seeds.

Complete step by step answer:
Tendrils are skinny, lengthy, thread fashioned organs that wind tightly around a thin rod, a shoot or the stalk of some other plant. The tendrils of different plant corporations are not homologous. They can be modified shoots (Vitis), specialized leaves (Pisum), leaflets (Vicia, Lathyrus), leaf stalks (Clematis) or components of roots that originate at once from the shoot (Vanilla). In the case of Vitis vinifera and Bryonia dioica, the tendrils are lateral shoots usually contrary to a leaf.
 In Passiflora, the tendrils are changed axillary buds. These are particularly specialized climbing organs. They are slim, frequently branched and might endure small scale leaves. The climbers via way of those tendrils attach themselves to neighbouring objects and climb them. The stem tendril is the modification of a stem is obvious from the reality that it arises in the axil of a leaf or at the apex of a branch.For example, in passion flowers (Passiflora) the axillary bud is modified into the tendril.

Option (A) Axillary buds is the correct answer.

Note:
Tendrils can be branched or unbranched. A scale leaf is usually gifted at the factor of branching of the tendril. Passion flower isn't always endorsed at some point of being pregnant because it may result in contraction.