Question

Tyioses are balloon like ingrowths in vessels developing from the adjoining:

• A. fibres through pits on vessel wall
• B. fibres through the general surface of vessel wall
• C. parenchyma through pits on vessel wall
• D. parenchyma through the general surface of vessel wall

Answer 1

Answer: (C)

Tyioses are protrusions of the axial and ray parenchyma cells which enter in tracheary elements.