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Faafitaanka: qaybaha dhaqaaqaya

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Waxaan sharxi karaa in faafitaanku yahay dhaqaaqa qaybaha walax ka yimid meel xoogga (concentration) sare ku leh meel xoogga hoose ku leh.

Hordhac

Soo dhawoow darsiga maanta. Darsigani wuxuu ka mid yahay cutubka 'Diffusion' (fidinta), waana darsigii ugu horreeyay. Waa inaad hore u taqaanid in walxuhu ka kooban yihiin qaybo yaryar oo dhaqdhaqaaqa, iyo in ururintu (concentration) tahay inta qaybood ee ku jirta meel gaar ah.

Muuji qoraalka
All substances, including the cell cytoplasm and substances within it, are made up of particles. These particles move in random directions and collide all the time. Concentration is the number of particles in a volume of liquid or gas. The net movement of particles is down a concentration gradient. Diffusion is the passive movement of particles of a substance from an area of higher to lower concentration.

Warqadda shaqada

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Imtixaannada

  1. 1. Waa kuwee kuwan soo socda aan ka samaysnayn unugyo (cells)?

    • Kalluun
    • Shillaabo
    • Libax
    • Jawaabta saxda ah:Dhagax
    • Caws

  2. 2. Kee ayaa ka mid ah hadalada ku saabsan jidhka bini'aadamka ee run ah?

    • Jidhku wuxuu ka kooban yahay unugyo (cells).
    • Jidhku waa unug (cell).
    • Jawaabta saxda ah:Jidhku wuxuu ka samaysan yahay unugyo (cells).
    • Jidhka gudihiisa unugyo (cells) ma jiraan.

  3. 3. Ereyga particle (qayb) waxa uu tilmaamayaa maxay?

    • Jawaabta saxda ah:atoms iyo molecules
    • atoms iyo cell organelles
    • cells iyo cell organelles
    • molecules iyo cells
    • atoms iyo cells

  4. 4. Waa maxay qaabka walxaha (particle model)?

    • Jawaabta saxda ah:Wuxuu sharaxayaa sida walxuhu ugu habaysan yihiin adkaha, dareeraha iyo gaasaska.
    • Wuxuu sharaxayaa sida walxuhu isu beddeli karaan.
    • Wuxuu sharaxayaa sida unugyada gudaha unugyada (cell organelles) ugu habaysan yihiin.
    • Wuxuu sharaxayaa sida walxo cusub loo sameeyo.

  1. 1. Mid ka mid ah kuwan soo socda ayaa qeexaya dhaqdhaqaaqa walxaha (particles) ee dareeraha (liquids) iyo gaasaska (gases)?

    • Jawaabta saxda ah:Si joogto ah ayay u dhaqaaqaan
    • Hal jiho ayay ku dhaqaaqaan
    • Si aan kala sooc lahayn (random) ayay u dhaqaaqaan
    • Way isku dhacaan (collide) midba midka kale
    • Waa istaagaan marka ay si siman u fidaan

  2. 2. Kee ayaa si fiican u sharxaya diffusion (faafinta)?

    • Dhaqdhaqaaqa walxaha (particles) ee ka yimaada meel ay ku yar tahay una socda meel ay ku badan tahay.
    • Jawaabta saxda ah:Dhaqdhaqaaqa walxaha (particles) ee ka yimaada meel ay ku badan tahay una socda meel ay ku yar tahay.
    • Dhaqdhaqaaqa walxaha (particles) ee ka yimaada meel una socda meel kale.

  3. 3. Maxay tahay sababta diffusion-ku u yahay hab aan firfircoonayn (passive process)?

    • Waxay u baahan tahay in qaybuhu (particles) ku fidaan.
    • Jawaabta saxda ah:Waxay u baahan tahay tamar dheeri ah (additional energy) oo aan la helin.
    • Waxay u baahan tahay tamar dheeri ah.
    • Waxay u baahan tahay in qaybuhu ku jiraan xaalad gaas (gas state).
    • Waxay u baahan tahay in qaybuhu ku jiraan xaalad dareere (liquid state).

  4. 4. Waa kuwee kuwan soo socda tusaalooyin ah walxaha (particles) laga heli karo cytoplasm-ka unugga?

    • Mitochondria
    • Nucleus
    • Jawaabta saxda ah:Oxygen
    • Glucose
    • Chloroplasts

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