Rapid movement of leaves of mimosa on touching is an example of _____________?

Related Mcqs:

1. Rapid growth at exponential ration occurs in which phase of bacterial growth:

   A. Lag phase
   B. Log phase
   C. Stationary phase
   D. Death / decline phase

2. Megaphylls i.e. leaves with divided veins with an expanded lamina is a dharacteristic of ___________________?

   A. Lycopods
   B. Ferns
   C. Seed plants
   D. Both b and c

3. Chlorosis, i.e., yellowish hue on the leaves results from_____________?

   A. Accumulation of toxic waste products in leaves.
   B. Deficiency of chlorophyll.
   C. Short supplies of mineral nutrients in the soil.
   D. All of these

4. At which times there is no net gaseous exchange between leaves and the atmosphere.

   A. Day time.
   B. Night time.
   C. Dawn & Dusk.
   D. Mid night.

5. Pulling upward of water and dissolved minerals towards the leaves through the xylem tissue is called__________?

   A. Transpiration pull
   B. Root pressure
   C. Ascent of sap.
   D. All of these

6. Which of the following constituent is/are maximum in the filtrate that leaves proximal convoluted tubules?

   A. Glucose
   B. Amino acids
   C. Nitrogenous waste
   D. All of these

7. They are widespread as protective coatings on fruits and leaves?

   A. cholesterol
   B. waxes
   C. chitin
   D. all of these

   Submitted by: Maryam Aftab

8. Which of the following plant group first formed true leaves?

   A. Psilopsida
   B. Lycopsida
   C. Sphenopsida
   D. Pteropsida

   Submitted by: Navid Muhammad

9. Stoma, found in the epidermis of leaves closes when guard cells

   A. Gain Water
   B. Lose Water
   C. Exchange gas
   D. None of These

   Submitted by: Rana usama Ibrahim

10. Bifacial Leaves :

    A. Leaves of maze plant
    B. Leaves of mango plant
    C. Leaves of water lily
    D. None of these

    Submitted by: Name