NCERT Solutions for Curiosity Chapter 10 Life Processes in Plants

About this chapter

Plants need sunlight and water to grow. Activity 10.1 shows this: the pot kept in sunlight with water grows best, the pot kept in the dark with water grows poorly and turns pale, and the pot kept in sunlight without water dries up and may die. Plants make their own food. Photosynthesis is the process by which plants prepare food in the presence of sunlight and chlorophyll , using carbon dioxide and water as raw materials. The word equation is: Carbon dioxide + Water → Glucose + Oxygen. Leaves are the 'food factories' of plants. They are broad and flat, and green because of the pigment chlorophyll , which captures sunlight efficiently. Food is first made as glucose and later stored as starch . Starch is detected with the iodine test — a decolourised leaf containing starch turns blue-black .

• Chapter opener
• .1 How Do Plants Grow?
• .2.1 Leaves: the 'food factories' of plants
• .2.2 Role of air in the preparation of food
• .2.3 Photosynthesis: in a nutshell
• .2.4 How do leaves exchange gases during photosynthesis?
• .3.1 Transport of water and minerals
• .3.2 Transport of food
• .4 Do Plants Respire?
• Chapter exercises