2 In dorsiventral leaf, the number of stomata per unit area are generally
Answer:More on lower surface
4 Water in plants is transported by or ascent of sap takes place through
Answer: Diffusion pressure deficit
6 Which of the following statements is not true?
Answer:Solute present in any cell increase the free energy of water or water potential
7 Which one of the following these is not related to guttation
Answer: Guttation is of universal occurrence
8 Which of the following is not purpose of transpiration?
Answer:Helps in translocation of sugar from source to sink
16 The steroid hormones easily pass through the plasma membrane through simple diffusion because they are _____
Answer: Lipid Soluble
17 Living cells placed in an isotonic solution tend to retain their shape and size. This is based on the principle of
18 Girdling around the trunk of a tree can cause it to ________ if it cannot regrow to bridge the wound