Select the correct statementsI. Epidermal cells have small amount of cytoplasm and a large vacuoleII. Waxy layer cuticle is absent in rootsIII. Root hairs are unicellular, while stem hairs/trichomes are multicellularIV. Trichomes are branched/unbranched, soft/stiff and secretory or transpiration preventiveV. Guard cells are dum-bell-shaped in dicots and bean-shaped in monocots (e.g., grass)
I, II and III
II, IV and V
I, III and V
II, III and IV
Related Questions
I. They may be branched or unbranched and soft or stiffII. They may be secretory and help in preventing water loss due to transpirationWhich of the above characteristics belongs to trichomes
Only I
Only II
I and II
None of these
Select the correct statementsI. Epidermal cells have small amount of cytoplasm and a large vacuoleII. Waxy layer cuticle is absent in rootsIII. Root hairs are unicellular, while stem hairs/trichomes are multicellularIV. Trichomes are branched/unbranched, soft/stiff and secretory or transpiration preventiveV. Guard cells are dum-bell-shaped in dicots and bean-shaped in monocots (e.g., grass)
I, II and III
II, IV and V
I, III and V
II, III and IV
Non-articulated laticifers are found in
Nerium
Papaver
Hevea
Achras
Which tissue system is responsible for the transport of water and minerals in plants?
Phloem
Xylem
Parenchyma
Sclerenchyma
The guard cells of stomata are surrounded by specialized epidermal cells known as:
Companion cells
Subsidiary cells
Mesophyll cells
Parenchyma cells
Which of the following statements is INCORRECT regarding parenchyma and xylem in plants?
Parenchyma is dead tissue, while collenchyma is living tissue.
Gymnosperms lack xylem vessels, while angiosperms possess them.
Parenchyma cells are typically thin-walled and involved in storage.
Xylem vessels are efficient for water transport in angiosperms.
Which tissue system is primarily responsible for providing mechanical strength and support to the plant body?
Vascular tissue system
Ground tissue system
Dermal tissue system
Meristematic tissue system
Stelar regions are formed from
Periblem
Plerome
Dermatogen
Tunica
I. It is made up of elongated, compactly arranged cells
II. It is usually single layered
III. It is parenchymatous
IV. Large vacuole is present
Which of the above characters belong to the epidermis?
All except I
All except III and IV
All except II
All of these
Epidermis is often covered with a waxy thick layer called
Cuticle
Suberin
Supporting cell
All of these