What is the difference between fibres and sclereids in plant histology ? Give one example of each.

Differentiate between tropic and nastic movements in plants . Give one example of each.

What is the difference between multimolecular and macromolecular colloids? Give one example of each.

What is the difference between (i) hydrogenation and (ii) hydrogenolysis? Give one example of each.

What is the difference between multimolecular and macromolecular collids ? Give one example of each . How are associated colloids different from these two types of colloids ?