7th class Ncert solution in English

Chapter 2 Nutrition in animals NCERT question answer Question 1: What are villi? What is their location and function? Answer The inner walls of small intestine have thousands of finger like out growth called villi Location They are located in small intestine Function The villi increase the surface area for absorption of the digested food Question 2: Where is the produced? produced which component of food does it help to digest?  Answer The bile is produced in the liver it helps to digest fat present in the food.  Question 3: Name the type of carbohydrate that can be digest by ruminant but not by human. Give the reason also. Answer Cellulose is the type of carbohydrate that can be digested by ruminants but not by human because cellulose is digested by an action of bacteria in a large sack likes structure called Rumen. Rumen is present only in ruminants but not in human so only ruminants can digest cellulose. Question 4: Why do we get instant energy from the glucose Answer: ...

Science chapter 1 Nutrition in Plants NCERT solutions and other question answer Question 1:  Why do organisms take food? Answer All organisms need food to get energy for growth and  of maintenance of their body Question 2:  Distinguish between a parasite and a saprotroph? Answer   Parasite Organisms which depend on other living organisms for their food are called Parasite  Example cuscuta, lice etc Saprotroph Organisms which depend on dead and decaying matter for their food are called saprotroph. Example Mushroom ,bacteria etc Question 3 How would you test the presence of starch in the leaves? Answer Take two potted plants, keep one plant in dark and other in sun light for 3-4 days. Take 1-I leaf from both the plants. Put 2-3 drops of iodine solution on both the leaves. The colour of leaf kept in dark does not change but the colour of leaf kept in sunlight changes into blue-black colour. This colour chang shows the presence of starch in leaves Question 4 Give a...