Which of the following plant group first formed true leaves?

Related Mcqs:

1. Which of the following plant group first formed true leaves________________?

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

2. A bond formed by linkage between -OH of carboxyl group of one amino acid and H of amino group of another amino acid which releases water is called__________?

   A. Phosphodiester linkage
   B. Glycosidic bond
   C. Peptide bond
   D. Hydrogen bond

3. 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

4. If a man having blood group AB marries a woman who is heterozygous for blood group, what is the probability of their first child having blood group B?

   A. 40%
   B. 45%
   C. 50%
   D. 71%

   Submitted by: Rashid Mehmood

5. 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

6. 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

7. 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

8. 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.

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