Advertisement Remove all ads

Why is Water Essential for Life? - Science

Why is water essential for life?

Advertisement Remove all ads

Solution 1

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.

Solution 2

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.

  Is there an error in this question or solution?
Advertisement Remove all ads


NCERT Class 9 Science Textbook
Chapter 14 Natural Resources
Q 2 | Page 201
Advertisement Remove all ads
Advertisement Remove all ads

View all notifications

      Forgot password?
View in app×