Question

The number of stomata and epidermal cells in 1 `mm^(2)` leaf area of lower epidermis of the leaves X, Y and Z plants are given below. Arrange the plants in decreasing order of their stomatal index.
The correct answer is
A. X, Y and Z
B. Y, Z and X
C. Z, Y and X
D. Y, X and Z

Answer 1

Correct Answer - B
Stomatal index can be found by the formula `=(S)/(E+S)xx100`
`X=(30)/(180)xx100 =16.67`
`Y=(60)/(300)xx100=20`
`Z=(90)/(490)xx100=18.36`
`Y gt Z gt X`