Question

Find the correct match –

(a)	Pulvinus leaf base	(i)	China rose
(b)	Sheathing leaf base	(ii)	Nepenthes
(c)	Stipulate leaf	(iii)	Grasses
(d)	Tendrillar Petiole	(iv)	Mimosa

A. a(iv), b(iii), c(i), d(ii)
B. a(iv), b(iii), c(ii), d(i)
C. a(i), b(iii), c(iv), d(ii)
D. a(iii), b(iv), c(i), d(ii)

Answer 1

Hint: A typical leaf develops from the leaf primordium of a bud and consists of three parts – the leaf base, petiole and the leaf lamina. The leaf base is the lowermost section of the leaf and is where attachment takes place. The petiole is the leaf stalk and the leaf lamina is the major green part of the leaf bearing venations. Each of the three parts are found to have modifications in their morphology and arrangement based on their functional and adaptive aspects in their ecological niche.

Complete answer:
Let’s first see the table and then try to make the correct matches. Ultimately, we will then see the options with the correct match.
Pulvinus leaf base – It is a modification in the leaf base when it becomes swollen and it is generally found in leguminous plants. It is also a characteristic of Mimosa where it helps in its peculiar touch response.
Thus, (a) matches with (iv).
Sheathing leaf base – It is a modification of the leaf base when it becomes broad and surrounds the stem like an envelope. It is observed in grasses.
Thus, (b) matches with (iii).
Stipulate leaf – Stipules are appendages present on either side of leaf base and they help in protecting the young leaf. A lead having stipules is called the stipulate leaf. In our table China roses have stipulated leaves and the stipules are free and lateral.
Thus, (c) matches with (i).
Tendrillar petiole – In some plants petioles get modified into tendrils which help them in climbing. Example – Nepenthes.
Thus, (d) matches (ii).
Based on our above discussions we come to a conclusion.
So, the correct option is A.
Options- B, C, D do not show correct matches and are wrong.

So, Option A - a(iv), b(iii), c(i), d(ii) is the correct answer.

(a)	Pulvinus leaf base	(iv)	Mimosa
(b)	Sheathing leaf base	(iii)	Grasses
(c)	Stipulate leaf	(i)	China rose
(d)	Tendrillar Petiole	(ii)	Nepenthes

Note:
Leaves are green appendages that grow on the stem from buds through primordial young leaves. They are normally green due to the presence of the photosynthetic pigment chlorophyll. At the base of the leaves, axillary buds grow which later help the plant in branching. A leaf is always produced at the stem's node. Based on their particular habitats plant leaves show significant differences in their morphology.