Class 7 Science Chapter 1 Nutrition In Plants Extra Nutrition in plants class 7 science extra questions long answer type. question 1. describe the process by which plants prepare their food using different raw materials. answer: the process by which green plants can prepare their own food is called photosynthesis. green plants possess chlorophyll in their leaf and utilises carbon dioxide (from. Very short extra questions and answer. 1. define parasites. answer: parasites they are those organisms which grow on other plants or animals for their food, e.g. cuscuta. 2. name the bacteria that can fix atmospheric nitrogen. answer: rhizobium is the bacterium which can fix atmospheric nitrogen. 3.
Ncert Solutions Extra Questions Of Ch 1 Science Nutrition In Question 6. explain the symbiotic relationship in lichens. answer: in lichens, a chlorophyll containing partner, an alga, live together with a fungus. the fungus provides shelter, water, and minerals to the alga and in return, the alga provides food which it prepares by photosynthesis. question 7. Very short answer type question. 1: name some components of food. answer: carbohydrates, proteins, fats, vitamins and minerals. 2: define nutrients. answer: carbohydrates, proteins, fats, vitamins and minerals are essential components of food, these components are called nutrients. 3: give an example of autotrophs. Vedantu provides a free pdf of important questions for class 7 science chapter 1 nutrition in plants prepared by subject experts. these questions are also solved by subject matter experts to provide a clear cut understanding of the chapter. these are extremely helpful in exam preparation and boost scores. q2. Solution: (a) green plants are called autotrophs since they synthesise their food. (b) the food synthesised by plants is stored as starch. (c) in photosynthesis, solar energy is absorbed by the pigment called chlorophyll. (d) during photosynthesis, plants take in carbon dioxide and release oxygen gas. 7.
Comments are closed.