Kya Paudhe Shvasan Karte?
Class 7 Science · Chapter 10: Paudhon mein Jeevan Prakriyaayein · NCERT Curiosity section 10.4
Seekho
Meher bhige moong ke beej geeli rui par band flask mein ek din andhere mein rakhti, phir flask ki hawa choone ke paani mein guzaarti. Wo doodhiya; saadhaaran hawa se nahi. Ugte beejon ne carbon dioxide chhodi: wo shvasan karte.
Jaanwaron ki tarah paudhe bhi oxygen se glucose todkar badhat ke liye oorja chhodte: glucose + oxygen → carbon dioxide + paani + oorja. Har jeevit hissa shvasan karta, hara ho ya nahi: jad, tana, phool aur beej, din aur raat. Prakaash-sanshleshan sirf hare hisson mein aur sirf roshni mein. Dono gas len-den ke liye stomata use karte.
glucose + oxygen → carbon dioxide + water + energy
Explore: prakaash-sanshleshan ya shvasan?
- Har visheshta sort karo.
Yaad rakho
- Paudhe shvasan karte: glucose + oxygen → carbon dioxide + paani + oorja, har jeevit hisse mein, din-raat.
- Prakaash-sanshleshan hare hisson mein roshni mein khaana banaata; shvasan use oorja ke liye use karta.
Quick check
Paudhe ke kaunse hisse shvasan karte?
- saare jeevit hisse, hare ho ya nahi
- sirf pattiyan
- sirf phool
- koi nahi
Answer
saare jeevit hisse, hare ho ya nahi. Har jeevit koshika ko oorja chahiye.
Socho
Rakhe aaloo dheere-dheere sikudkar halke kyun hote?
Ek answer
Wo shvasan karte rehte, jama khaana khatam karte aur carbon dioxide aur paani chhodte, to samay ke saath dravyamaan ghatta.
Practice
Teen levels (easy, medium, hard) ke naye sawaalon se practice karo, kuch hands-on, hints aur hal ke saath. Topic poora karne ke liye pichhle 5 mein se 4 sahi karo.