La qabsiga dhirta ee photosynthesis: is-weydaarsiga gaaska iyo stomata

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Waxaad sharxi kartaa sida dhirta ugu la qabsanayaan inay qaataan oo sii daayaan gaasaska si ay u taageeraan photosynthesis.

Hordhac

Casharkayaga maanta waa mid xiiso leh oo ka hadlaya sida dhirta ugu habaysan yihiin inay gaasaska ku kala beddelaan hawada si ay u taageeraan photosynthesis-ka. Waa inaad hore u taqaanid sida dhirta u sameeyaan cuntadooda iyagoo isticmaalaya iftiinka qorraxda, biyaha, iyo hawada. Diyaar ma u tahay inaad barato sida neefta iyo daldaloolada yaryar (stomata) uga qayb qaataan habkan?

Muuji qoraalka

Plant leaves take in carbon dioxide gas from the air for photosynthesis The oxygen made by photosynthesis is released as a gas from leaves into the air This process is called gas exchange Leaves have small holes in their surface called stomata for gas exchange Molecules of gases move through open stomata by diffusion

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Imtixaannada

1. Qaybtee ka mid ah geedka ayaa qaada gaaska loo adeegsado photosynthesis-ka **iyo** sii daaya gaaska ay sameyso photosynthesis-ku?
- ubaxa
- Jawaabta saxda ah:cagaarka (leaves)
- xididdada

1. Waa maxay magaca daloollada yaryar ee ku yaala dusha caleenta?
- chloroplasts (chloroplasts)
- guard cells (unugyada ilaalinta)
- Jawaabta saxda ah:stomata (stomata)
- vacuoles (vacuoles)
2. Jaantusku wuxuu muujinayaa qaar ka mid ah qaababka ka kooban caleenta dhirta. Qaybtee jaantuska ayaa muujinaysa mid ka mid ah stomata-ga caleenta?
- Qaybta **A**
- Qaybta **B**
- Qaybta **C**
- Jawaabta saxda ah:Qaybta **D**
3. Waa keetaba habka u oggolaanaya is-weydaarsiga gaaska (gas exchange) iyada oo loo marayo stomata furan inta lagu jiro photosynthesis-ka?
- la qabsiga (adaptation)
- uruurinta (concentration)
- Jawaabta saxda ah:faafinta (diffusion)
- neefsashada (respiration)
4. Jaantuskee ayaa muujinaya **gradient-ka xoogga** (concentration gradient) saxda ah ee **gaaska oksijiin** (oxygen) marka unugyada ku jira caleenta ay samaynayaan photosynthesis?
- Jaantuska **A**
- Jaantuska **B**
- Jawaabta saxda ah:Jaantuska **C**
5. Markee haddii unugyada caleenku ay samaynayaan photosynthesis (photosynthesis), kee baa qeexaya **dhaqdhaqaaqa guud** ee qaybaha carbon dioxide?
- Dhaqdhaqaaqa guud wuxuu u socdaa labada jiho.
- Dhaqdhaqaaqa guud wuxuu ka yimaadaa **gudaha caleenta** **ilaa dibadda**.
- Jawaabta saxda ah:Dhaqdhaqaaqa guud wuxuu ka yimaadaa **dibadda** **ilaa gudaha caleenta**.
- Ma jiro dhaqdhaqaaq guud oo labada jiho midna.

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