Name two cell organells that are double membrane bound. What are the characteristics of these two organelles? State their functions and draw labelled diagrams of both.

Name the two nucleic acid present in the cell and their functions.

Name the sperm lysine, which organelle secretes it? What is its function?

Can you name the two organelles we have studied that contain their own genetic material?

What are allergens? Name the two chemicals realised by mast cells in the body during allergy

What happens to the force between two objects ? If the masses of both objects are doubled ?

Based on given diagram, answer the following questions a] Label the parts A, B, C,D. b] Name the hormone secreted by testis and mention its role. c] State the function of B and C in the process of reproduction.

a] How is brain protected from injury and shock? b] Name two main parts of hind brain and state the functions of each.