$A$ : Bast fibres are collenchymatous fibres.
$R$ : Fibres are absent in secondary phloem.
Assertion and Reason both are correct and also correct explanation.
Assertion and Reason both are correct but not explanation of assertion.
Assertion is correct, but Reason is incorrect.
Both Assertion and Reason are incorrect.
Which type of tissue is immediately produced from a meristem
They provide mechanical support to the growing parts of the plant such as young stem and petiole of leaf.
Tracheids of angiosperms are recognised by the presence of
Lignin is the main constituent of
Protoxylem is the first formed xylem. If the protoxylem lies next to phloem what kind of arrangement of xylem would you call it?