RBSE Class 7 Science Notes Chapter 1 Nutrition in Plants

These comprehensive RBSE Class 7 Science Notes Chapter 1 Nutrition in Plants will give a brief overview of all the concepts.

RBSE Class 7 Science Chapter 1 Notes Nutrition in Plants

→ Humans and animals are directly or indirectly dependent on plants for food.

→ The nutrients enable living organisms to build their bodies, to grow, to repair damaged parts of their bodies and provide the energy to carry out life processes. Leaves are the food factories of plants.

→ The solar energy is captured by the leaves and stored in the plant in the form of food. Thus,, the sun is the ultimate source of energy for all living organisms.

→ During photosynthesis, chlorophyll containing cells of leaves, in the presence of sunlight, use carbon dioxide and water to synthesise carbohydrates.

→ Proteins are nitrogenous substances which contain nitrogen.

→ Like humans and animals, some plants (which do not have chlorophyll) depend on the food produced by other plants. Such plants can be parasite or insectivorous plants.

→ The fungal spores are generally present in the air. When they land on wet and warm things, germinate and grow.

→ Some organisms live together and share both shelter and nutrients. This relationship is called symbiosis. For example - Lichens and Rhizobium, in root nodules of leguminous plants.

→ Fertilisers and manures contain nutrients as nitrogen, potassium, phosphorous, etc.