Advertisements
Advertisements
प्रश्न
Why is water essential for life?
Advertisements
उत्तर १
Water is essential for life because of the following reasons:-
(i) Most biological reactions occur when substances are dissolved in water. Thus, all cellular processes need water as a medium to take place.
(ii) Transportation of biological substances needs water as a medium.
उत्तर २
Water is considered essential for life because of the following reasons :-
(i) All cellular processes take place in water medium.
(ii) All the reactions that take place within our body and within the cells occur between substances that are dissolved in water.
(iii) Substances are also transported from one part of the body to the other in a dissolved form.
(iv) Water makes up about 70% of body weight of all living organisms.
(v) It helps in the digestion of food and absorption Of nutrients in the blood. Hence, organisms need to maintain the level of water within their bodies in order to stay alive.
(vi) It helps in maintaining body temperature.
संबंधित प्रश्न
Name the gas produced when chlorine is dissolved in water and exposed to sunlight.
Freezing mixture contains ............. and .............
Complete the statement by filling the blank with the correct word from the option.
Kerosene & water form a _______ mixture.
What is meant by the term ‘oil spill’?
Pour water from the ice tray into a kettle. Ask an elder at your home to heat the kettle and observe the mouth of the kettle when the water starts boiling.
What do you see?
State whether the following statement is True or False. If false, give the correct statement.
Snow and ice both are solid forms of water
In a filtration, plant water is filtered using layers of
Animal waste, oil and urea are some of the organic impurities present in sewage. Name two more organic impurities present in sewage.
In which one of the following state's water is present on Earth?
Write any two activities which require less than one bucket of water.
