Q1. Which part of a dicot stem contains the starch sheath?A. PericycleB. EndodermisC. PithD. Vascular bundle
Q2. Which type of vascular bundle is found in monocot roots?A. Radial, polyarchB. Conjoint, openC. Collateral, closedD. Bicollateral
Q3. Which cells are responsible for opening and closing of stomata?A. Parenchyma cellsB. Collenchyma cellsC. Guard cellsD. Bulliform cells
Q4. Which of the following statements about the endodermis in dicot roots is correct?A. It is the outermost layer of the root.B. It consists of loosely arranged cells with intercellular spaces.C. It contains Casparian strips, which regulate water movement.D. It is made up of dead cells.
Q5. Which type of plant tissue is present in the pericycle and contributes to lateral root formation?A. CollenchymaB. ParenchymaC. SclerenchymaD. Phloem
Q6. Which type of simple permanent tissue stores food and is involved in photosynthesis?A. CollenchymaB. ParenchymaC. SclerenchymaD. Xylem
Q7. Which of the following statements about trichomes is correct?A. Trichomes are found on roots and help in absorption.B. Trichomes help in reducing water loss from aerial parts.C. Trichomes are present in xylem and help in conduction.D. Trichomes are involved in transport of organic nutrients.
Q9. Which of the following statements about the cortex in roots is correct?A. The cortex is composed of lignified dead cells.B. The cortex helps in water and nutrient storage.C. The cortex contains vascular bundles.D. The cortex is the innermost layer of the root.
Q10. Which of the following statements about sclerenchyma is correct?A. Sclerenchyma cells have thick lignified walls and provide mechanical support.B. Sclerenchyma cells remain alive at maturity.C. Sclerenchyma is mainly responsible for photosynthesis.D. Sclerenchyma has thin primary walls with intercellular spaces.