Bifacial Leaves :

Related Mcqs:

1. The arrangement of unequal dichotomous branches in one plane during evolution of leaves is called_____________?

   A. Overtopping
   B. Fusion
   C. Webbing
   D. Planation

2. Which of the following group of tracheophyta has expanded or scale like leaves which are alwaysed arranges in whorls?

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

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. The point at which there is no net exchange of gases between leaves and atmosphere is known as_____________?

   A. Neutral point
   B. Compensation point
   C. Parallel point
   D. Competitive point

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

   A. Turgor movement
   B. Nastic movement
   C. Tropic movements.
   D. Growth movement

6. 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

7. 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

8. Thick, waxy & leathery cuticle around leaves is present in___________?

   A. Hydrophytes
   B. Mesophytes
   C. Xerophytes
   D. Halophytes

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

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

   Submitted by: Maryam Aftab

10. 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