4.2.5 - Plant Fibres

Question 1

Describe Plant Fibres
(2 Points)

Answer 1

~ These fibres (Sclerenchyma Fibres & Xylem Vessel) have great strength, a property which is exploited by humans.

~ They are useful in making rope and certain fabrics.

Question 2

How Are These Plant Fibres Strong?
(2 Points)

Answer 2

~ The arrangement of cellulose myofibrils in a mesh-like pattern.

~ Secondary thickening of cell walls.

Question 3

Describe ‘Secondary Thickening Of Cell Walls’ As A Source Of Strength For Plant Fibres

Answer 3

Thicker than the normal cell wall and has more lignin.