| 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. | 
| 1. | are adaxial epidermal cells in grasses that are large, empty, colourless cells and involved in folding and unfolding of leaf tissue in order to reduce overall water loss. | 
| 2. | are adaxial epidermal cells in grasses that are large, empty, colourless cells and involved in regulating the opening and closing of stomata for exchange of gases. | 
| 3. | are adaxial epidermal cells in dicot leaves that are filled with thick sap and involved in regulating water content in leaf. | 
| 4. | are abaxial epidermal cells in dicot leaves that are similar to vacuoles and involved in storage of toxins and water. | 
| 1. | Isobilateral (Monocotyledonous) Leaf; where A is xylem and B is phloem | 
| 2. | Isobilateral (Monocotyledonous) Leaf; where A is phloem and B is xylem | 
| 3. | Dorsiventral (Dicotyledonous) Leaf; where A is xylem and B is phloem | 
| 4. | Dorsiventral (Dicotyledonous) Leaf; where A is phloem and B is xylem | 
| I: | Stomata are structures present in the epidermis of leaves. | 
| II: | Stomata regulate the process of transpiration and gaseous exchange. | 
| III: | Each stoma is composed of two bean-shaped cells known as subsidiary cells which enclose stomatal pore. | 
| IV: | In grasses, the guard cells are dumb-bell shaped. | 
| V: | The inner walls of guard cells (towards the stomatal pore) are thin and the outer walls (away from the stomatal pore) are highly thickened. | 
| Statement I: | Hypodermis consists of a few layers of collenchymatous cells. | 
| Statement II: | The cells of the endodermis are rich in protein granules. | 
| Statement III: | Pericycle is in the form of semi-lunar patches of sclerenchyma. | 
| Statement IV: | The ‘ring’ arrangement of vascular bundles is a characteristic of dicot stem. | 
| 1. | Transverse only | 
| 2. | Tangential only | 
| 3. | Transverse and radial | 
| 4. | Tangential and radial | 
| 1. | Generate secretory products to cause sting. | 
| 2. | Reduce herbivory. | 
| 3. | Bring about greater water loss through extended surface area of the epidermis. | 
| 4. | Provide shade. | 
| I: | Roots | 
| II: | Monocot stems | 
| III: | Dicot stems |