Q. Tracheids are less efficient than vessels due to : (a) Absence of closed end walls. (b) Uneven thickenings. (c) Casparian strips . (d) Presence of tapering end walls. Solution…
Q. Guard cells differ from epidermal cells in having : (a) Mitochondria (b) Vacuoles (c) Cell Wall (d) Chloroplasts Solution : Correct option :D Guard cells have chloroplasts, whereas epidermal…
Q. Apoplast is the system of adjacent cell walls that is continuous throughout the plant except at the : Plasmodesmata Vessel elements Casparian strips of endodermis Tracheids Solution : Correct…
Q. Which of the following is done during ringing experiment? (a) Bark is removed. (b) Xylem is removed. (c) Pith is removed. (d) All of these. Solution : Correct option…