የ12ኛ ክፍል ውጤት ወጥቷል፤ ውጤትዎን የሚያዩበት መንገድ

የምዕራፍ ማስታወሻዎችና የመልመጃ ጥያቄዎች

የ10ኛ ክፍል ባዮሎጂ ምዕራፍ 6፦ ኢኮሎጂካል መስተጋብሮች

በዚህ ገጽ ያለው ሁሉ ለ10ኛ ክፍል የባዮሎጂ መፅሐፍ ምዕራፍ 6 ነው፦ ምዕራፉ የሚሸፍነው፣ አጭር ማስታወሻዎቹ፣ የመልመጃ ጥያቄዎች ከመልሶቻቸው ጋር፣ እና ቪዲዮ ባለበት የትምህርቱ ቪዲዮ።

ከ Google Play ያውርዱ
4
ካርዶች
10
የምዕራፍ 6 የመልመጃ ጥያቄዎች

የምዕራፍ 6 አጭር ማስታወሻዎች

በ10ኛ ክፍል የባዮሎጂ ገጽ ላይ በዚህ ምዕራፍ ሥር የተመዘገቡት ካርዶች። አንድ በአንድ ይክፈቱ።

መቼ እንደሚጠቀሙበት

በሥነምህዳር ውስጥ የኃይል ፍሰትን እና የንጥረ ነገሮችን ዑደት ለማነጻጸር ይጠቀሙበት።

ይጠንቀቁ

ኃይል ከፀሐይ ወደ አምራቾች እና ተመጋቢዎች በአንድ አቅጣጫ ብቻ ይፈሳል፣ እንደገና ጥቅም ላይ መዋል አይችልም። እንደ ካርቦን፣ ናይትሮጅንና ፎስፈረስ ያሉ ንጥረ ነገሮች ግን በሕያዋን እና በግዑዛን አካላት መካከል ያለማቋረጥ ይሽከረከራሉ።

ከGrade 10 Biology፣ ከገጽ 153 ጀምሮ የተዘጋጀ፤ ከመውጣቱ በፊት ሁለት ጊዜ ተረጋግጧል

ሂደትየኬሚካል ለውጥዋና ዋና ረቂቅ ተሕዋስያን
Nitrogen Fixation (Symbiotic)N2→NH3/NH4+N_2 \rightarrow NH_3 / NH_4^+Rhizobium
Nitrogen Fixation (Free-living)N2→NH4+N_2 \rightarrow NH_4^+Azotobacter, Klebsiella
Nitrification (ደረጃ 1)NH3→NO2−NH_3 \rightarrow NO_2^-Nitrosomonas
Nitrification (ደረጃ 2)NO2−→NO3−NO_2^- \rightarrow NO_3^-Nitrobacter
AmmonificationOrganic N →NH4+\rightarrow NH_4^+አበስባሽ bacteria እና Fungi
DenitrificationNO3−→N2NO_3^- \rightarrow N_2Pseudomonas, Thiobacillus

መቼ እንደሚጠቀሙበት

በናይትሮጅን ዑደት ውስጥ እያንዳንዱን ኬሚካላዊ ለውጥ የሚያከናውኑትን ባክቴሪያዎች ለመለየት ይጠቀሙበት።

ይጠንቀቁ

ዲናይትሪፊኬሽን ኦክስጅን በሌለበት ሁኔታ ናይትሬትን ወደ ናይትሮጅን ጋዝ የሚቀይር ሲሆን፥ ናይትሪፊኬሽን ግን አሞኒያን ወደ ናይትሬት ለመቀየር ኦክስጅን ይፈልጋል።

ከGrade 10 Biology፣ ከገጽ 153 ጀምሮ የተዘጋጀ፤ ከመውጣቱ በፊት ሁለት ጊዜ ተረጋግጧል

መቼ እንደሚጠቀሙበት

በትሮፊክ ደረጃዎች መካከል የሚተላለፈውን ኃይል ለማስላት እና የምግብ ሰንሰለት ከ4 እስከ 5 ደረጃዎች በላይ የማይረዝምበትን ምክንያት ለማብራራት ይጠቀሙበት።

ይጠንቀቁ

ወደ ቀጣዩ ትሮፊክ ደረጃ የሚተላለፈው እና ወደ ባዮማስ የሚቀየረው 10 ከመቶ ገደማ ኃይል ብቻ ነው። ቀሪው 90 ከመቶ በሙቀት፣ በእንቅስቃሴ ወይም ባልተፈጨ ቆሻሻ መልክ ይባክናል።

ከGrade 10 Biology፣ ከገጽ 153 ጀምሮ የተዘጋጀ፤ ከመውጣቱ በፊት ሁለት ጊዜ ተረጋግጧል

መቼ እንደሚጠቀሙበት

አንድ ሕያው ፍጡር በምግብ ሰንሰለት ውስጥ ያለውን ትክክለኛ ደረጃ ለመሰየም ይጠቀሙበት።

ይጠንቀቁ

አምራቾች (ተክሎች) በመጀመሪያው ትሮፊክ ደረጃ ላይ ቢሆኑም የመመገብ ደረጃ ግን የላቸውም። የመጀመሪያ ደረጃ ተመጋቢዎች (ዕፅዋት በል እንስሳት) በሁለተኛው ትሮፊክ ደረጃ ላይ ሲሆኑ የመመገብ ደረጃቸው ግን 1 ነው።

ከGrade 10 Biology፣ ከገጽ 153 ጀምሮ የተዘጋጀ፤ ከመውጣቱ በፊት ሁለት ጊዜ ተረጋግጧል

የምዕራፍ 6 የመልመጃ ጥያቄዎች

በዚህ ምዕራፍ ላይ የተጻፉ 10 የምርጫ ጥያቄዎች፣ እያንዳንዳቸው መልሱና ምክንያቱ አላቸው። መልሱን ከመክፈትዎ በፊት ይሞክሩ። ጥያቄዎቹ በእንግሊዝኛ ናቸው።

ጥያቄ 1

What is the ultimate source of energy for living organisms in an ecosystem?

  1. A.Soil minerals
  2. B.The sun
  3. C.Decomposers
  4. D.Fossil fuels
መልሱንና ምክንያቱን ያሳዩ

መልስ፦ B The sun

ምክንያቱ

The textbook states that the ultimate source of energy in living organisms is the sun, which plants capture during photosynthesis.

ጥያቄ 2

In a food chain consisting of Grass → Grasshopper → Lizard → Hawk, what are the trophic level and feeding level of the grasshopper?

  1. A.First trophic level, first feeding level
  2. B.Second trophic level, first feeding level
  3. C.Second trophic level, second feeding level
  4. D.First trophic level, second feeding level
መልሱንና ምክንያቱን ያሳዩ

መልስ፦ B Second trophic level, first feeding level

ምክንያቱ

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).

ጥያቄ 3

Why is a pyramid of energy always upright and narrowing towards the top?

  1. A.Energy is recycled back to the sun at each step
  2. B.Decomposers consume all the energy at the base
  3. C.There is roughly a 90% loss of energy at each trophic level
  4. D.Top carnivores have a higher total biomass than producers
መልሱንና ምክንያቱን ያሳዩ

መልስ፦ C There is roughly a 90% loss of energy at each trophic level

ምክንያቱ

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.

ጥያቄ 4

In the water cycle, what is the term for water vapor cooling in the atmosphere to form liquid droplets?

  1. A.Evaporation
  2. B.Transpiration
  3. C.Condensation
  4. D.Infiltration
መልሱንና ምክንያቱን ያሳዩ

መልስ፦ C Condensation

ምክንያቱ

Condensation occurs when warm water vapor rises, cools, and turns into liquid water droplets that form clouds.

ጥያቄ 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)?

  1. A.500 kJ
  2. B.5,000 kJ
  3. C.50 kJ
  4. D.5 kJ
መልሱንና ምክንያቱን ያሳዩ

መልስ፦ A 500 kJ

ምክንያቱ

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).

ጥያቄ 6

Which genus of soil bacteria is responsible for oxidizing nitrite (NO2-) into nitrate (NO3-) during nitrification?

  1. A.Nitrosomonas
  2. B.Nitrobacter
  3. C.Rhizobium
  4. D.Azotobacter
መልሱንና ምክንያቱን ያሳዩ

መልስ፦ B Nitrobacter

ምክንያቱ

Nitrosomonas converts ammonia into nitrite, while Nitrobacter performs the second step of nitrification by converting nitrite into nitrate.

ጥያቄ 7

Why do plant roots preferentially take up nitrogen in the form of ammonium (NH4+) rather than nitrate (NO3-)?

  1. A.Nitrate cannot pass through the root cell membrane
  2. B.Ammonium requires a much lower energy expenditure to assimilate
  3. C.Nitrate is immediately toxic to root xylem tissue
  4. D.Ammonium is completely absent from dry soil
መልሱንና ምክንያቱን ያሳዩ

መልስ፦ B Ammonium requires a much lower energy expenditure to assimilate

ምክንያቱ

Plants prefer reduced ammonium because the energy cost for assimilating NH4+ into organic compounds is lower than for NO3-.

ጥያቄ 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?

  1. A.Denitrification
  2. B.Eutrophication
  3. C.Ammonification
  4. D.Biological magnification
መልሱንና ምክንያቱን ያሳዩ

መልስ፦ B Eutrophication

ምክንያቱ

Eutrophication is the excessive growth of aquatic plants and algae caused by nutrient-rich runoff (nitrogen and phosphorus) entering water bodies.

ጥያቄ 9

Under which soil condition does bacterial denitrification occur, and what is its main gaseous end product returned to the atmosphere?

  1. A.Dry, well aerated soil; produces ammonia (NH3)
  2. B.Waterlogged, anoxic soil; produces nitrogen gas (N2)
  3. C.Acidic, sandy soil; produces nitrate (NO3-)
  4. D.Aerobic organic soil; produces nitrous acid (HNO2)
መልሱንና ምክንያቱን ያሳዩ

መልስ፦ B Waterlogged, anoxic soil; produces nitrogen gas (N2)

ምክንያቱ

Denitrification is an anaerobic process occurring mainly in waterlogged, oxygen-deficient (anoxic) soils, where denitrifying bacteria convert nitrates back into nitrogen gas (N2).

ጥያቄ 10

Why do Ethiopian farmers practice crop rotation by planting legumes (such as beans or peas) before growing non-legume cereals?

  1. A.Legumes absorb toxic phosphorus minerals from the soil
  2. B.Symbiotic Rhizobia in legume root nodules enrich the soil with fixed nitrogen
  3. C.Legumes stop earthworms from burrowing through the topsoil
  4. D.Legume roots prevent evaporation by cooling groundwater directly
መልሱንና ምክንያቱን ያሳዩ

መልስ፦ B Symbiotic Rhizobia in legume root nodules enrich the soil with fixed nitrogen

ምክንያቱ

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.

መተግበሪያው በዚህ ምዕራፍ ላይ 12 ጥያቄዎች አሉት፤ እየሠሩ ያርምዎታል። እዚህ ያሉት የመጀመሪያዎቹ 10 ናቸው።

የምዕራፍ 6 የመፅሐፍ ገጾች

ሙሉው የ10ኛ ክፍል የባዮሎጂ መማሪያ መፅሐፍ፣ በነጻ PDF።

የትምህርት ሚኒስቴር እትም, እንግሊዝኛ, 177 ገጾች

PDF ያውርዱ

ሁሉም የ10ኛ ክፍል ባዮሎጂ አጭር ማስታወሻዎች

ይህን ምዕራፍ በመተግበሪያው ይለማመዱ

Temari ይህን ምዕራፍ ወደ ጊዜ የተቆረጠለት መልመጃ ይለውጠዋል፣ እየሠሩ ያርምዎታል፤ ያልገባዎትንም የሚያብራራ የ AI አስተማሪ አለ።

በነጻ ይጀምሩ

Temari.et ለ Android ስልኮች መተግበሪያ አለው፤ በ Google Play ላይ በነጻ ይገኛል።

ከ Google Play ያውርዱስለ Temari መተግበሪያ
ይግቡመለያዎን ይክፈቱ