Yaadannoo boqonnaa fi gaaffii shaakalaa
Wanti fuula kana irra jiru hundi boqonnaa 6 kitaaba Baayoloojii kutaa 10 tiif: wanta boqonnaan haguugu, yaadannoo gabaabaa, gaaffii shaakalaa deebii isaanii waliin, fi viidiyoo barnootaa bakka jirutti.
Kaardiiwwan fuula Baayoloojii kutaa 10 irratti boqonnaa kana jala galmaa'an. Tokko tokkoon bani.
Yoom akka itti fayyadamtu
Sochii annisaa fi sochii elementoota keemikaalaa ikoosiisteemii keessatti walbira qabuuf itti fayyadamaa.
Of eeggadhu
Annisni kallattii tokko qofaan aduu irraa yaa'a, deebi'ee faayidaa irra hin oolu. Nyuutirentoonni akka kaarboonii, naayitiroojiinii fi foosfarasii garuu orgaanizimootaa fi naannoo gidduutti irra deddeebi'anii marsaa uumu.
Grade 10 Biology, fuula 153 irraa eegalee irraa qophaa'e; osoo hin ba'in dura yeroo lama mirkanaa'e
| Adeemsa | Jijjiirama Keemikaalaa | Maaykiroobaaktiriyeemoota |
|---|---|---|
| Nitrogen Fixation (Symbiotic) | Rhizobium | |
| Nitrogen Fixation (Free-living) | Azotobacter, Klebsiella | |
| Nitrification (Sadarkaa 1) | Nitrosomonas | |
| Nitrification (Sadarkaa 2) | Nitrobacter | |
| Ammonification | Organic N | Bacteria mancaastuu fi Fungi |
| Denitrification | Pseudomonas, Thiobacillus |
Yoom akka itti fayyadamtu
Marsaa naayitiroojiinii keessatti baakteeriyaan kam jijjiirama keemikaalaa isa kam akka raawwatu adda baasuuf itti fayyadamaa.
Of eeggadhu
Dinaayitirifikeeshiniin adeemsa an-aerobikii ta'ee naayitireetii gara gaasii naayitiroojiiniitti deebisudha, naayitirifikeeshiniin garuu amooniyaa gara naayitireetiitti jijjiiruuf oksijiinii barbaada.
Grade 10 Biology, fuula 153 irraa eegalee irraa qophaa'e; osoo hin ba'in dura yeroo lama mirkanaa'e
Yoom akka itti fayyadamtu
Sadarkaalee tiroofikii gidduutti daddarboo annisaa herreguufi maaliif sararri soorataa sadarkaa 4 yookiin 5 ol hin caalle ibsuuf itti fayyadamaa.
Of eeggadhu
Annisaa sadarkaa tokko keessa jiru keessaa gara dhibbentaa 10 qofatu sadarkaa itti aanutti darba. Dhibbentaan 90 hafe akka oo'aatti, hojii qaamaatiin yookiin xurii bullaa'uu dhabeen bada.
Grade 10 Biology, fuula 153 irraa eegalee irraa qophaa'e; osoo hin ba'in dura yeroo lama mirkanaa'e
Yoom akka itti fayyadamtu
Yeroo sadarkaa soorannaa orgaanizimii tokkoo sarara soorataa keessatti lakkoofsiftu kanatti fayyadamaa.
Of eeggadhu
Oomishtonni sadarkaa tiroofikii 1ffaa irra jiru garuu sadarkaa soorannaa hin qaban. Soorattoonni sadarkaa tokkoffaa sadarkaa tiroofikii 2ffaa irra jiru, kunis sadarkaa soorannaa 1ffaa dha.
Grade 10 Biology, fuula 153 irraa eegalee irraa qophaa'e; osoo hin ba'in dura yeroo lama mirkanaa'e
Gaaffii filannoo 10 boqonnaa kana irratti barreeffaman, tokkoon tokkoon isaanii deebii fi sababa qabu. Deebii banuu dura yaali. Gaaffiin kun Ingiliffaa tiin.
Gaaffii 1
What is the ultimate source of energy for living organisms in an ecosystem?
Deebii: B The sun
Sababa
The textbook states that the ultimate source of energy in living organisms is the sun, which plants capture during photosynthesis.
Gaaffii 2
In a food chain consisting of Grass → Grasshopper → Lizard → Hawk, what are the trophic level and feeding level of the grasshopper?
Deebii: B Second trophic level, first feeding level
Sababa
Plants stand at the first trophic level. Herbivores like grasshoppers stand at the second trophic level, but since they are the first organisms to eat another organism, they are at the first feeding level (primary consumers).
Gaaffii 3
Why is a pyramid of energy always upright and narrowing towards the top?
Deebii: C There is roughly a 90% loss of energy at each trophic level
Sababa
As energy is transferred from one trophic level to the next, about 90% is lost as heat, metabolic work, or undigested waste, so only about 10% is passed on.
Gaaffii 4
In the water cycle, what is the term for water vapor cooling in the atmosphere to form liquid droplets?
Deebii: C Condensation
Sababa
Condensation occurs when warm water vapor rises, cools, and turns into liquid water droplets that form clouds.
Gaaffii 5
If the teff plants (producers) in a field contain 50,000 kJ of energy, how much energy will be transferred to the biomass of secondary consumers (carnivores)?
Deebii: A 500 kJ
Sababa
With an average trophic efficiency of 10%, primary consumers receive 10% of 50,000 kJ (5,000 kJ), and secondary consumers receive 10% of that (500 kJ).
Gaaffii 6
Which genus of soil bacteria is responsible for oxidizing nitrite (NO2-) into nitrate (NO3-) during nitrification?
Deebii: B Nitrobacter
Sababa
Nitrosomonas converts ammonia into nitrite, while Nitrobacter performs the second step of nitrification by converting nitrite into nitrate.
Gaaffii 7
Why do plant roots preferentially take up nitrogen in the form of ammonium (NH4+) rather than nitrate (NO3-)?
Deebii: B Ammonium requires a much lower energy expenditure to assimilate
Sababa
Plants prefer reduced ammonium because the energy cost for assimilating NH4+ into organic compounds is lower than for NO3-.
Gaaffii 8
What environmental problem is caused when excess chemical fertilizers containing phosphorus and nitrogen wash from farmlands into nearby lakes, leading to massive algal blooms?
Deebii: B Eutrophication
Sababa
Eutrophication is the excessive growth of aquatic plants and algae caused by nutrient-rich runoff (nitrogen and phosphorus) entering water bodies.
Gaaffii 9
Under which soil condition does bacterial denitrification occur, and what is its main gaseous end product returned to the atmosphere?
Deebii: B Waterlogged, anoxic soil; produces nitrogen gas (N2)
Sababa
Denitrification is an anaerobic process occurring mainly in waterlogged, oxygen-deficient (anoxic) soils, where denitrifying bacteria convert nitrates back into nitrogen gas (N2).
Gaaffii 10
Why do Ethiopian farmers practice crop rotation by planting legumes (such as beans or peas) before growing non-legume cereals?
Deebii: B Symbiotic Rhizobia in legume root nodules enrich the soil with fixed nitrogen
Sababa
Legumes host Rhizobium bacteria in their root nodules, which fix atmospheric nitrogen. After harvest, the accumulated nitrogen in the soil benefits the following non-legume crop.
Appiin boqonnaa kana irratti gaaffii 12 qaba; utuu hojjettuu ni sirreessa. Kan asii jiran 10 jalqabaa ti.
Kitaaba barataa Baayoloojii kutaa 10 guutuu, PDF bilisaan.
Maxxansa Ministeera Barnootaa, Ingiliffaa, Fuula 177
Temari boqonnaa kana gara shaakala yeroon daangeffametti jijjiira; utuu hojjettuu ni sirreessa; wanti si hin galinis barsiisaa AI tiin ni ibsama.
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