1
Q
Consist of
A
Cellulose fibres
2
Q
Primary
A
- disorderly
- pectin
- shape
3
Q
Secondary
A
- neatly
- lignin and Suberin
- protection and strength
4
Q
Only in
A
Plant cells
5
Q
Provide
A
Support, shape, protection, prevents loss of water and overexpansion
6
Q
Plasmodesmata
A
Thin, cytoplasmic threads, reach through cell walls, connect cytoplasms of adjacent cells
7
Q
Pits
A
Pores in cell wall, lateral transport, bordered pits
