Study Materials

 Biology Study Material in What is a gene? A chromosome is made up of a large molecule of deoxyribonucleic acid (DNA). A small section of DNA is called a gene. Therefore, a ...

Biology Study Material in What are Chromosomes  Chromosomes are string-like structures located inside the nucleus of animal and plant cells. The word chromosome is derived ...

Active Transport Biology Study Material Active Transport Sometimes organisms require certain substances and therefore need to move dissolved substances from a region of ...

Osmosis in Animal Cells  & Plant Cells Biology Study Material Osmosis in Animal Cells As you will remember animal cells have partially permeable cell membrane. ...

Osmosis Biology Study Material Now we have established the general features of both animal and plant cells we must also remember that many cells do look different and this ...

TNPSC Group 2A, Exam history Study Materials Free Download The history of India includes the prehistoric settlements and societies in the Indian subcontinent; the advancement ...

Example of Diffusion in an Animal cell Biology Study Material Example of diffusion in an animal cell The cells in our body need glucose and oxygen for respiration. Both ...

Example of Diffusion In Plant Cells Biology Study Material  In order to carry out photosynthesis a plant requires carbon dioxide. On the underside of leaves there are small ...

In And Out Of Cells Diffusion Biology Study Material Diffusion Particles in liquids and gases have kinetic energy, therefore they move about at speed in all directions. ...

Optimum Conditions For Enzymes Biology Study Material  Enzymes are sensitive and work best under specific conditions. Enzyme activity is affected by several things and each ...