Anatomy of Flowering Plants

Q1.The endodermis of a dicot root is composed of:

• AMultiple layers of parenchyma with intercellular spaces
• BA single layer of barrel-shaped cells without intercellular spaces
• CA single layer of collenchymatous cells
• DMultiple layers of sclerenchyma

Q2.What distinguishes the vascular bundles of stems and leaves from those of roots?

• AStems and leaves have radial bundles; roots have conjoint bundles
• BStems and leaves have conjoint bundles; roots have radial bundles
• CStems have closed bundles; roots have open bundles
• DRoots have conjoint bundles; leaves have radial bundles

Q3.The outermost covering of the entire plant body is formed by which tissue system?

• AGround tissue system
• BVascular tissue system
• CEpidermal tissue system
• DMeristematic tissue system

Q4.The waxy thick layer present on the outside of the epidermis that prevents water loss is called:

• ASuberin
• BCuticle
• CLignin
• DPectin

Q5.In the guard cells of stomata, which wall is highly thickened?

• AThe outer wall (away from stomatal pore)
• BThe inner wall (towards stomatal pore)
• CBoth walls equally
• DNeither wall is thickened