THE LIVING WORLD ry
TARGET AUDIENCE Aspirants of Nest ATIMS& Other Competitive Sxam living beinsCo ry
PART 3 Charateristics Of livin beines ina Seinas
CREDENTIALS M.Sc. Botany Gold Medalist CET,DCA,B.Ed Juhi s.Mishr Bio Educator on Upacademy 7 yrs Teaching Experience
NUTRITION All living organisms need food. The food is used as a source of energy and materials for the processes of life such as growth. Light and chemical energies are used by all the living organism. Those
organisms specialized for using light energy carry out photosynthesis e.g plants, algae and photosynthetic bacteria. The organisms which use chemical energy, always depend on other living organisms, e.g. humans, animal and nongreen plants i.e. fungi
RESPIRATION All life processes require energy and much of it is food obtained by the nutrition which is used as a source of this energy. The energy is released during the breakdown of certain energy rich compounds in the process of respiration.
. The energy is stored in ATP Adenosine tri phosphate), a compound known to occur in all living cells and is referred to universal energy carrier.
MOVEMENT . Animals and some unicellular forms have the ability to move from place to place, called as locomotion. This is necessary to obtain their food, shelter and mate. Plants lacks
locomotion. Nevertheless, some movements of part of body structure can be seen in plants. E.g. roots move in search of water under the soil or flower closes at night etc.