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. |
Statement I: | The root hairs are unicellular elongations of the epidermal cells and help absorb water and minerals from the soil. |
Statement II: | The trichomes in the shoot system are usually multicellular, branched or unbranched, soft or stiff, may even be secretory and help in preventing water loss due to transpiration. |
1. | It shows stomatal apparatus of almost all plants except grasses where A represents guard cells and B represents subsidiary cells. |
2. | It shows stomatal apparatus of almost all plants except grasses where A represents subsidiary cells and B represents guard cells. |
3. | It shows stomatal apparatus of grasses where A represents subsidiary cells and B represents guard cells. |
4. | It shows stomatal apparatus of grasses where A represents guard cells and B represents subsidiary cells. |
Types of vascular tissue | Present in | |
I. | Roots | |
II. | Monocot stems |
1. | near similar sizes of vascular bundles, including main veins, as seen in vertical sections of the leaves. |
2. | near similar sizes of vascular bundles, except in main veins, as seen in vertical sections of the leaves. |
3. | large sizes of vascular bundles in mid rib and smaller in veins, as seen in vertical sections of the leaves. |
4. | smaller sizes of vascular bundles in mid rib and larger in 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. |