Photosynthesis kaise kaam karta hai
Transcript
Photosynthesis: plants apna food sunlight se kaise banate hain?
Plants ko energy sunlight se milti hai, aur woh apna khana banate hain.
Photosynthesis mein teen cheezein zaroori hain: sunlight, paani, aur carbon dioxide.
- Teen inputs zaroori hain
Leaf mein ek green colour hota hai, uska naam chlorophyll hai.
- Chlorophyll = green pigment
Chlorophyll sunlight ko absorb karta hai, jaise ek solar panel.
Plant roots se paani leta hai, aur leaves se carbon dioxide leta hai.
Ab sunlight, paani, aur carbon dioxide ek chemical reaction mein combine hote hain.
- Chemical equation
6CO_2 + 6H_2O + \text{light} \rightarrow C_6H_{12}O_6 + 6O_2Is reaction se glucose banta hai, jo plant ka food hai.
Oxygen bhi nikalta hai, jo hum breathe karte hain.
- Oxygen = byproduct
Ek example: ek tomato plant ko dekho. Sunlight, paani, CO2 se red tomatoes bante hain.
Chlorophyll light ke different colours absorb karta hai, lekin green nahi.
Isliye leaves green dikhte hain—kyunki green light reflect hota hai. Quiz: Photosynthesis mein kaunsi gas plant release karta hai? Photosynthesis se plants apna food banate hain aur hume oxygen dete hain.
- Green reflect, baaki absorb
Quick quiz
Q1. Photosynthesis mein kaunsi gas plant release karta hai?
Oxygen nikalta hai, jo hum breathe karte hain.
