Video narration
Bina khae koi paudha apna khana kaise bana sakta hai? Sochiye, har hari patti ek chhoti-si rasoi hai. Is rasoi mein samagri aati hai: jaden mitti se paani kheenchti hain, aur pattiyan hawa se carbon dioxide leti hain. Mitti paani deti hai, lekin paudhe ka khana usmein nahin banta. Ab asli mod: paudha mitti se khana nahin leta. Patti mein maujood chlorophyll, yani hara rangdravya, suraj ki roshni pakadta hai. Yeh roshni bhojan banane ki urja hai - samagri nahin. Phir yahi chhoti rasoi paani aur carbon dioxide ko badalkar glucose banati hai. Glucose paudhe ka bhojan hai; vah ise urja ke liye istemal karta hai ya starch ke roop mein jama karta hai. Is prakriya mein oxygen bhi banti hai aur hawa mein chhod di jaati hai. To paudha bina khae khana kaise banata hai? Uski pattiyan suraj ki urja se paani aur carbon dioxide ko glucose mein badalti hain. Is poori prakriya ko prakash sanshleshan, yani photosynthesis, kehte hain.