1. | Hypodermis – Pericycle – Endodermis – Vascular bundles |
2. | Vascular bundles – Pericycle – Endodermis – Hypodermis |
3. | Hypodermis – Endodermis – Pericycle – Vascular bundles |
4. | Vascular bundles – Endodermis – Pericycle – Hypodermis |
I: | It comprises a single layer of pear-shaped cells with well-developed intercellular spaces. |
II: | The tangential as well as radial walls of the endodermal cells have a deposition of water-impermeable, waxy material suberin in the form of casparian strips. |
Statement I: | In roots, the protoxylem lies towards the centre (pith) and the metaxylem lies towards the periphery of the organ. |
Statement II: | In stems, the protoxylem lies towards periphery and metaxylem lies towards the centre. |
I: | all tissues except epidermis and vascular bundles. |
II: | simple tissues such as parenchyma, collenchyma and sclerenchyma. |
III: | parenchymatous cells in cortex, pericycle, pith and medullary rays, in the primary stems and roots. |
IV: | thin-walled chloroplast containing cells called mesophyll in leaves. |
1. | Metaxylem | 2. | Cambium |
3. | Protoxylem lacuna | 4. | Metaphloem |
I | II | III | |
1. | T | T | T |
2. | F | F | F |
3. | F | F | T |
4. | T | T | F |
I: | The stomata are present on both the surfaces of the epidermis. |
II: | The mesophyll is not differentiated into palisade and spongy parenchyma. |
III: | The parallel venation in monocot leaves is reflected in the near similar sizes of vascular bundles (except in main veins) as seen in vertical sections of the leaves. |
I: | The adaxial epidermis generally bears more stomata than the abaxial epidermis. |
II: | Mesophyll has two types of cells – the palisade parenchyma and the spongy parenchyma. |
1. | Only stomatal aperture and guard cells but not subsidiary cells. |
2. | Only stomatal aperture but not guard cells and subsidiary cells. |
3. | Only guard cells and subsidiary cells but not stomatal aperture. |
4. | Stomatal aperture, guard cells and subsidiary cells but not other epidermal cells. |