9. Following table shows the components of water potential in three closely placed mesophyll cells (W, X and Y). Cell Osmotic potential Pressure potential(MPa) (MPa)W – 0.21 0.06X – 0.22 0.02Y – 0.23 0.04Which of the following shows correct direction of the movement of water between two cells?I. W →X II. X III. Y → W IV. W → Y → Y (a) I and III (b) I and IV(c) II and III (d) I only 10. A container has two compartments filled with pure water and separated by a membrane that is permeable to dye molecules. If dye is then added to one compartment, dynamic equilibrium will be achieved when 11. The function of absorption of water and mineral salts from the soil is primarily carried out by _______ of the roots. (a) root cap (b) actively dividing region (c) region of elongation (d) region of maturation 12. Which of the following would decrease the rate of water loss (transpiration) from the leaves of a sugar maple tree? 13. The content of a large vacuole in a eukaryotic cell has the same osmotic pressure as the surrounding cytoplasm, to prevent it from shrinking or bursting. If this eukaryotic cell is placed in a 3 M sucrose solution 14. Which of the following help to reduce transpiration loss?I. Sunken stomata II. Leaf hairIII. Large flat leaf IV. Parallel venation (a) I and II (b) II and IV(c) II, III and IV (d) I, II, III and IV 15. Select the correct statement(s) out of the following. 16. In wilted condition, water potential of the mesophyll cells is
You've reached the end of your free preview.
Want to read all 80 pages?
- Spring '16
- maam reyes