write 15 lines on the usefulness of micro-organisms in our lives.class8 science L2​

2 thoughts on “write 15 lines on the usefulness of micro-organisms in our lives.class8 science L2​”

1. Answer:

   Hii, Answer is :–

   15 lines on usefulness of microorganisms in our life are as follows :–

   • Lactobacillus is used to form curd from milk.
   • Rhizobium present in pulse plants’ roots fix nitrogen from the air and supply nitrogen compounds to the pulse plants.
   • Micro-organisms are also used in winemaking, baking, pickling, and other food-making processes.
   • Alcoholic fermentation by yeast is widely used in the preparation of wine and bread.
   • Microbes are used to reduce pollution. For example, decomposers such as bacteria and fungi break down dead bodies and excreta to form inorganic compounds, which plants can absorb.
   • Microbes also play an important role in the preparation of medicines. Antibiotics are chemicals produced by microorganisms to kill bacteria. Penicillin is an antibiotic made from Penicillium.
   • Bacteria in our intestine helps in proper digestion and release vitamin B, absorbed by the intestine.
   • Many vaccines are prepared from micro-organisms. These vaccines are given to children to protect them from the disease.
   • Certain microbes are also used in the biological treatment of sewage and industrial effluents.
   • Yeast is used in making idli, bhaturas, bread, pastries, and cakes.
   • Some microroganisms are used as a probiotic (live bacteria and yeasts that are good for digestive system and maintain good health of the host). They are called as ‘good’ or ‘useful’ bacteria.
   • Spirulina, yeast are used as single cell proteins (supplemetary food).
   • Many microbes carry out decomposition of dead remains of plants and animals.
   • Lactobacillus is used in dairy industries for setting of curd and in cheese making.
   • Blue green algae carry out nitrogen fixation.

   Hope it helps uh dear❣️

   Reply

2. Answer:

   sorry i am in 7th so sadd ddddd

   Reply