Specialized protective coverings around megasporangium which vary in number are called_________________?

Related Mcqs:

1. The single healthy megaspore retained within the megasporangium germinates to form an egg containing female gaemtophyte called______________?

   A. Ovule
   B. Seed
   C. Fruit
   D. Embroyo sac

2. In life cycle of Pinus megaspores produced by megasporangium divide into 4 megaspores by__________________?

   A. Mitosis
   B. Meiosis
   C. Both depending upon the conditions
   D. None of these

3. Carotenoids perform protective function in_____________?

   A. Animals
   B. Plants
   C. Both of these
   D. None of these

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

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

   Submitted by: Maryam Aftab

5. Complex specialized flagellates living symbiotically in the gut of termites are___________?

   A. Trichonymphas
   B. Trypanosoma
   C. Euglena
   D. Radiolarians

6. Brown fat present in certain mammals is specialized in___________?

   A. Providing insulation in cold environment.
   B. Providing insulation in hot environment
   C. Rapid heat production.
   D. Controlling heat production.

7. Hydra has no specialized excretory system because:

   A. It does not produce waste material
   B. Due to absence of mesoderm
   C. The whole body cells are in contact with water
   D. It has pseudocoelom.

8. A three dimensional dcavity bearing a specific charge by which the enzyme reacts with its substrate is called_________________?

   A. Active site
   B. Binding site
   C. Catalytic site
   D. Allosteric site

9. The branch of biology which deals with the study of chemical compounds and the chemical processes in the fliving organisms is called_________________?

   A. Chemistry
   B. Biochemistry
   C. Molocular biology
   D. Both a and b

10. MSH is produced from___________?

    A. Anterior pituitary
    B. Median pituitary
    C. Posterior pituitary
    D. None of these