Tyloses thickenings are seen in
Phloem cells
Ray parenchyma only
Collenchyma
Ray parenchyma and xylem cells
In the sieve elements, which one of the following is the most likely function of $P-$ proteins?
The balloonshaped structures called tyloses
Abaxial surface of the leaf generally bears
Rind of Citrus fruit possesses
Members of Winteraceae, Tetracentraceae and Trochodendraceae