Question

Tyloses are.

• A. Tracheal plugs which plug the lumen of the vessels and tracheids
• B. Compound sieve plates
• C. Specialised secretory cells
• D. Laticiferous channels

Answer 1

The correct option is A Tracheal plugs which plug the lumen of the vessels and tracheids

The balloon shaped structures tracheal plugs formed in the xylem vessels of heartwood, due to the intrusions of secondary xylem parenchyma are called tyloses.

So, the correct option is ‘Tracheal plugs which plug the lumen of the vessel and tracheids’.