With the help of a diagram show the mechanism of diffusion.

With the help of a diagram, describe the mechanisms of breathing.

What is TCA cycle and why is it called so? With the help of a diagram show the Krebs cycle.

With the help of a diagram show the sigmoid growth curve.

Show with the help of a ray diagram how the image is formed in an astronomical telescope .

An object is placed in front of a convex mirror on the principal axis. With the help of a ray diagram show the position of the image.

Show that for refraction of light through a parallel glass slab, the incident ray and the emergent ray are parallel to each other. Or, With the help of a diagram show how in case of a rectangular glass slab, when light is refracted by the two parallel faces of the slab, deviation between angle of incidence and angle of refractive is zero.

List the properties of diffusion.

What is Plasmid vector? With the help of a word diagram show how cell mediated DNA cloning is occurred.

Show with the help of a diagram the nature of the magnetic lines of force normal to the plane of current carrying circular coil.

With the help of a cross show how the sex of offspring of humans is determined .