Q1. What is the function of guard cells in stomata?A. Absorption of mineralsB. Opening and closing of stomatal poreC. Storage of foodD. Providing mechanical support
Q2. What is the function of bulliform cells in monocot leaves?A. PhotosynthesisB. Water absorptionC. Leaf folding during droughtD. Mechanical support
Q3. What differentiates an isobilateral leaf from a dorsiventral leaf?A. Presence of palisade and spongy mesophyllB. Stomata present on both surfacesC. Absence of bulliform cellsD. Presence of large intercellular spaces
Q4. Which component of xylem is responsible for the conduction of water?A. Phloem fibersB. TracheidsC. Sieve tubesD. Companion cells
Q6. Which cells form the majority of the mesophyll in monocot leaves?A. Palisade parenchymaB. Spongy parenchymaC. Bulliform cellsD. Undifferentiated mesophyll cells
Q7. Which of the following statements about the ground tissue system is incorrect?A. Ground tissue is found in all parts of the plant except vascular tissue and epidermis.B. It consists of parenchyma, collenchyma, and sclerenchyma.C. Ground tissue does not participate in food storage.D. In leaves, mesophyll is a part of the ground tissue system.
Q8. Which of the following cells in the epidermis help in the regulation of stomatal movement?A. TrichomesB. Guard cellsC. Bulliform cellsD. Epidermal parenchyma
Q9. Which of the following is a characteristic feature of isobilateral (monocot) leaves?A. Stomata are present only on the lower epidermisB. Mesophyll is differentiated into palisade and spongy layersC. Bulliform cells help in rolling the leavesD. Parallel venation is absent
Q10. Which cells in leaves are responsible for photosynthesis?A. Guard cellsB. TrichomesC. Mesophyll cellsD. Companion cells