Question

Choose the correct labelling of (A - J) in the given figure of T.S. of monocot root.

• A. A - Root hair, B - Epiblema, C - Cortex, D - Endodermis, E - Passage cell, F - Pericycle, G - Pith, H - Phloem, I - Metaxylem.
• B. A - Root hair, B - Epiblema, C - Cortex, D - Endodermis, E - Passage cell, F - Pith, G - Pericycle, H - Metaxylem, I - Phloem.
• C. A - Root hair, B - Epiblema, C - Cortex, D - Endodermis, E - Pericycle, F - Phloem, G - Protoxylem, I - Metaxylem
• D. A - Root hair, B - Cortex, C - Epiblema, D - Pericycle, E - Endodermis, F - Pith, G - Phloem, H - Protoxylem, I - Metaxylem

Answer 1

Answer: (C)

In the given figure of T. S of monocot root, the part marked as $A,B,C,D,E,F,G,H$ and I are respectively root hairs, epiblema, cortex, endodermis, pericycle, phloem, protoxylem, pith and metaxylem. Monocot root do not undergo any secondary growth. It consists of thin walled cells in the epiblema; unicellular root hairs, passage cells and casparian thickenings in the endodermis; parenchyma cells in the pericycle; conjuctive tissue; distinct pith and radial vascular bundles with polyarch condition and an exarch xylem. Cuticle and stomata are absent