(a) What would you observe if a filament of spirogyra is immersed in 0. 1 m sodium chloride solution for about one hour?

(b) Name the process which occurred during the immersion of the spirogyra filament in 0.1 m sodium chloride solution.

What is meant by the term endospermous seed?

 State three advantages of vegetation to the soil

  (a) (i) State one function of plastids to plants (i) Name one plastid found in plants (b) State one function each of (i) mitochondrion (ii) chromosome

(a) Name the vessel that carries blood from the wall of the small intestine to the liver (b) State two similarities in structure between the transport systems in plants and animals.