Question

Match and find the correct combination

(a)	Trichomes	(i)	Gaseous exchange
(b)	Tracheids	(ii)	Mechanical strength
(c)	Bast fibres	(iii)	Water conduction
(d)	Guard cells	(iv)	Water conduction
		(v)	Synthesis of food

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

Answer 1

The correct option is B (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i)

• Root hairs are also trichomes that aid in water and mineral absorption.
• The xylem, vessels and tracheids of the roots, stems and leaves are interconnected to form a continuous system of water conducting channels reaching all parts of the plants.
• Bast fibre cells are an ideal example of sclerenchyma fibres. Their major function is to provide strength.
• Guard cells are specialized cells in the epidermis of leaves, stems and other organs that are used to control gas exchange.
  

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