Question No:1

Which of the following is true about stomata?

[A] Formed by guard cells
[B] Regulate process of transpiration and gaseous exchange
[C] Mainly present on epidermis of leaves
[D] All



Question No:2

Which of the following is true about guard cells?

[A] Outer wall is thin
[B] Inner wall (towards stomatal pore) is thick
[C] Bean-shaped in dicots and dumb-bell-shaped in grasses
[D] All



Question No:3

Which of the following cell posses chloroplast?

[A] Mesophyll cells of leaf
[B] Guard cells
[C] Sometimes in cells of collenhcyma
[D] All



Question No:4

Stomatal apparatus consists of

[A] subsidiary cells
[B] guard cells
[C] stomatal aperture
[D] all



Question No:5

Stem hairs are

[A] unicellular
[B] acellular
[C] multicellular
[D] any of them



Question No:6

Trichomes are

[A] epidermal hair of stem
[B] either soft or stiff
[C] branched or unbranched
[D] all



Question No:7

Select the incorrect statement from the following:

[A] Trichomes help in preventing water loss due to transpiration
[B] Cuticle prevents loss of water
[C] Cuticle is absent in roots
[D] Epidermis is made up of elongated, loosely arranged cell, which forms continuous layer



Question No:8

Ground tissue is made up of

[A] parenchyma
[B] collenchyma
[C] sclerenchyma
[D] all



Question No:9

Parenchymatous cells are usually present in

[A] cortex, Pericycle
[B] pith and medullary rays
[C] primary stem and roots
[D] all



Question No:10

Thin-walled chloroplast containing Mesophyll cells are present in

[A] root
[B] stem
[C] leaf
[D] all



Question No:11

Vascular system consist of

[A] simple tissue
[B] complex tissue
[C] xylem
[D] phloem



Question No:12

Closed vascular bundle is present in

[A] monocot
[B] dicot
[C] both
[D] none



Question No:13

Conjoint vascular bundle is present in

[A] monocot stem
[B] dicot stem
[C] leaf
[D] all



Question No:14

A root hair is formed by

[A] epidermal cell
[B] endodermal cell
[C] cortical cell
[D] Pericycle cell



Question No:15

Epidermal outgrowths are known as

[A] stomata
[B] leaves
[C] trichomes
[D] flower buds