Lagnever AI English

Paudhon mein transport kaise hota hai?

Short mein jawab

Paudhon mein transport ke liye do tarah ki patli naliyan hoti hain. Xylem jadon se liya gaya paani aur usme ghule minerals tane se hote hue patton aur baaki hisson tak upar le jaata hai. Phloem patton mein bana khaana paudhe ke har hisse tak le jaata hai, jadon aur beejon tak bhi, jahan kuch khaana jama hota hai.

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Paudhon ko transport kyun chahiye

Paudhe ke hisse alag-alag jagah alag kaam karte hain. Patte khaana banaate hain par unhe paani chahiye, jo mitti mein hai. Jadein paani leti hain par khaana nahi bana sakti, kyunki wo zameen ke andar hain aur unme chlorophyll nahi. Isliye paani ko upar jaana padta hai aur khaane ko har hisse tak. Paudhe ye kaam do tarah ki patli, nali jaisi banaavaton se karte hain: xylem aur phloem.

Paani aur minerals: xylem

Jadein paani ke saath usme ghule minerals leti hain. Minerals wo poshak tatva hain jo paudhon ko achhi badhat ke liye chahiye. Phir paani aur minerals xylem se tane mein upar, shaakhaon aur patton tak jaate hain. Patte is paani ko photosynthesis aur kai doosre kaamon mein istemaal karte hain.

Lal syahi ka experiment

Paani ko chadhte hue dekh sakte ho. Do glass A aur B lo, ek-tihaai paani se bharo, aur B mein lal syahi ki kuch boondein daalo. Safed phoolon waali do ek jaisi naram tehniyon, jaise safed sadabahar ya balsam, ke tane paani ke andar pakde hue tirchhe kaato, aur har glass mein ek rakho. Agle din tak tehni B ke patton ki nasein aur pankhudiyan laal dhaariyon waali ho jaati hain, jabki tehni A waisi hi rehti hai.

Saade paani mein tehni A safed aur hari rehti hai; lal syahi waale paani mein tehni B ki pankhudiyon aur nason mein ek din baad laal dhaariyan
Rangeen paani upar chadhta hai

Ab tehni B ke tane ko paani ke upar se aar-paar kaato aur kate sire ko magnifying glass se dekho. Chhote laal dhabbe dikhte hain: ye xylem ki naliyan hain jinse rangeen paani upar chadha. Isi tarah paani mein ghule minerals paudhe mein upar jaate hain. (Extra: paani ke andar kaatne se naliyon mein hawa ke bulbule nahi ghuste, aur upar ki zyaadatar kheench patton se stomata ke raaste paani ke bhaap ban kar udne se aati hai.)

Khaana: phloem

Patte photosynthesis ki main jagah hain, par paudhe ke har hisse ko khaana chahiye. Patton mein bana khaana ek aur tarah ki patli naliyon, phloem, se har hisse tak jaata hai. Kuch turant energy aur badhat mein istemaal hota hai, aur kuch jama hota hai, jaise beejon aur jadon mein. Aaloo ka starch, ganne ki cheeni aur anaaj ka khaana, sab phloem se hi pahunchte hain.

Paudha jisme neele teer xylem mein upar jaata paani aur naarangi teer phloem mein khaana dikhaate hain, aur laal xylem dhabbon waala kata tana
Xylem aur phloem

Do system saath mein

Xylem aur phloem jadon, tane aur patton mein agal-bagal chalte hain, jaise pipes ke do set. Paani aur minerals xylem mein patton tak upar jaate hain; wahan bana khaana phloem mein baaki paudhe tak jaata hai. Agar inme se koi kharab ho jaaye, jaise ped ke tane se chaal ki ek ring utaar di jaaye, to aage ke hisse pareshaan hone lagte hain. (Extra: phloem chaal ke theek neeche hota hai, isliye utri hui ring khaane ko jadon tak pahunchne se rok deti hai.)

Ye kyun zaroori hai

Kisaan fasalon ko paani aur mitti mein khaad dete hain kyunki jadon aur xylem ko patton tak paani aur minerals pahunchaane hote hain. Phir phloem anaaj, phal aur kand ko khaane se bharta hai. Khaana kaise banta hai, ye photosynthesis kya hai? mein dekho, aur kaise istemaal hota hai, ye kya paudhe saans lete hain? mein. Textbook ke sawaalon ke jawab Chapter 10 ke NCERT solutions mein hain; poore Chapter 10 ke notes dekho.

Practice karo

  1. Paudhe mein khaana kaun le jaata hai?

    1. (a) Xylem
    2. (b) Phloem
    3. (c) Stomata
    4. (d) Root hair
    Jawab dekho

    Jawab: (b) Phloem

  2. Lal syahi mein khadi tehni ka safed phool laal ho jaata hai, kyunki rangeen paani upar chadhta hai:

    1. (a) phloem se
    2. (b) xylem se
    3. (c) stomata se
    4. (d) sirf pankhudiyon se
    Jawab dekho

    Jawab: (b) xylem se

  3. Mitti ke minerals patton tak pahunchte hain:

    1. (a) hawa se
    2. (b) paani mein ghul kar, xylem se
    3. (c) phloem se
    4. (d) stomata se
    Jawab dekho

    Jawab: (b) paani mein ghul kar, xylem se

  4. Aaloo ka starch kahan se aata hai?

    Jawab dekho

    Jawab: Ye patton mein photosynthesis se khaane ke roop mein banta hai, phloem se neeche aata hai, aur aaloo mein jama hota hai.

  5. Jadon ko patton se khaana kyun chahiye?

    Jawab dekho

    Jawab: Jadein mitti ke andar, roshni se door hoti hain aur unme chlorophyll nahi hota, isliye wo khaana nahi bana sakti. Unhe khaana phloem se patton se milta hai, jise wo energy aur badhat ke liye istemaal karti hain.

Students ke sawal

Xylem ka kaam kya hai?

Xylem paani aur usme ghule minerals ko jadon se tane ke raaste patton, phoolon aur paudhe ke baaki hisson tak upar le jaata hai.

Phloem ka kaam kya hai?

Phloem patton mein bana khaana paudhe ke har hisse tak le jaata hai. Is khaane ka kuch hissa jadon, phalon aur beejon jaise hisson mein jama hota hai.

Tane mein paani chadhta hua kaise dekhein?

Safed phoolon waali taaza kati tehni ko lal syahi waale paani mein khada karo. Agle din tak pankhudiyan aur patton ki nasein laal ho jaati hain, aur tane ko kaatne pe xylem ki jagah laal dhabbe dikhte hain.

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