PunePlasma

Something which is’ living’ (not dead) is said to be ‘alive’. In most simple terms, alive’ means ‘having life’. Alive is called ‘jeevit’ or ‘zinda’ in Hindi. We are alive and you are also alive. Those things which are alive are called living things’. All the plants and animals (including human beings) are alive or … Read more

In human beings, many organs take part in the process of respiration. We call them organs of respiratory system. The main organs of human respiratory system are: Nose, Nasal passage (or Nasal cavity), Trachea, Bronchi, Lungs and Diaphragm. The human respiratory system begins from the nose. Our nose has two holes in it which are … Read more

Respiration can, however, also take place in the absence of oxygen (of air), though it is very rare. This means that oxidation of food to obtain energy can occur in the presence of oxygen as well as in the absence of oxygen. Based on this, we have two types of respiration : aerobic respiration and … Read more