Collenchyma cells can best be described as:
a) Non-living with thick walls impregnated with lignin
b) Living, roughly round in cross section, with little structural specialism
c) Narrow and elongated in shape, with additional thickening in cell corners
d) Living, with fibres in their wall to communicate with adjacent cells
Answer: c) Narrow and elongated in shape, with additional thickening in cell corners