Question

How many of the following plants given below possess open (X) and closed vascular bundles (Y) respectively?
Brassica, Tulipa, Capsicum, Gloriosa, Nicotiana, Aloe, Cicer, Asparagus, Petunia, Colchicum, Sesbania, Zea.

• A. X = 6, Y = 6
• B. X = 4, Y = 8
• C. X = 5, Y = 7
• D. X = 9, Y = 3

Answer 1

The correct option is A X = 6, Y = 6

Xylem and phloem together called Vascular bundles. In the vascular bundles cambium is present between the xylem and phloem are called Open vascular bundles. These are found in Dicotyledonous stems. eg:Brassica, Capsicum, Nicotiana, Cicer, Petunia, Sesbania(6). Vascular bundles in which cambium is not present between the xylem and phloem are called closed vascular bundles. These are found in monocotyledonous stems. eg:Tulipa, Gloriosa, Aloe, Asparagus, Colchicum, Zea(6).

So the correct option is 'X = 6, Y = 6'.