With the help of suitable diagrams, illustrate the two types of on-ideal solutions.

With the help of a suitable diagram, describe the structure and function of a neuron.

With the help of suitable examples describe the various types of vascular bundles in plants.

State any two characteristics of ideal solutions.

With the help of suitable diagrams explain the detailed ultrastructure of a mitochondrion. How would you justify that mitochondria are genetically autonomous or atleast semiautonomous?

With the help of suitable diagram describe the logistic population growth curve.

What type of liquids form ideal solutions?

(a) Explain with the help of suitable diagram , the two processes which occur during the formations of a p -n junction diode . Hence , define the terms : (i) depletion region and (ii) potential barrier : (b) Draw a circuit diagram of a p - n junction diode under forward bias and explain its working .

With the help of diagrams, name and describe the different types of placentation seen in angiosperms.

With the help of suitable diagrams, describe : (a) Binary fission in plants (b) Budding in Yeast cell

Distinguish between sky wave and space wave propagation. Give a brief description with the help of suitable diagrams indicating how these waves are propagated.