Question

Tracheary elements are

• A. Vessels and tracheids
• B. Sieve tubes and vessels
• C. Sieve tubes, vessels and tracheids
• D. Seive tubes, sieve cells, vessels and tracheids

Answer 1

The correct option is A Vessels and tracheids

The xylem tracheary elements consist of cells known as tracheids and vessel members, both of which are typically narrow, hollow, and elongated. Tracheids are less specialized than the vessel members and are the only type of water-conducting cells in most gymnosperms and seedless vascular plants. Vessel members are the principal water-conducting cells in angiosperms and are characterized by areas that lack both primary and secondary cell walls, known as perforations.

So, the correct answer is 'Vessels and tracheids.'