Question

Prepare a project report by collecting information about the topics given below :
a) Electron microscope.
b) Importance of osmosis in plants and animals.

CLASS 9

Answer 1

Answer:

1. An electron microscope is a microscope that used a bean of accelerated electrons as a source of illumination. Electron microscope are used to investigate the ultrastructure of a wide range of biological and inorganic specimens including microorganisms, calls, large molecules, biopsy simples, metals and crystals.
2. Osmosis is important to plants because it allows for water uptake, photosynthesis and general stability. Osmosis ensures that all cells and structures within a plant have correct water pressure and volume. In animals, osmosis helps to absorb water from the intestines to the blood.