የ12ኛ ክፍል ውጤት ወጥቷል፤ ውጤትዎን የሚያዩበት መንገድ

የፈተና ወረቀቶች

የ12ኛ ክፍል ባዮሎጂ መግቢያ ፈተና፣ 2018 ዓ.ም. (2026)፣ ዙር 1

ተማሪዎች በ2018 ዓ.ም. የተፈተኑበት የ12ኛ ክፍል የባዮሎጂ የዩኒቨርሲቲ መግቢያ ፈተና እውነተኛ ጥያቄዎች። እያንዳንዱ ጥያቄ ትክክለኛ መልስ እና የተብራራ ማብራሪያ አለው። የ2018 ዓ.ም. ፈተና ከአንድ ዙር በላይ ተሰጥቷል። ይህ ገጽ የያዘው ዙር 1 ነው።

ከ Google Play ያውርዱ
  • የተፈጥሮ ሳይንስ ዘርፍ

    ማን ይፈተናል

  • 2018 ዓ.ም. (2026)፣ ዙር 1

    የፈተና ዓመት

  • 94 ጥያቄዎች ከመልስ ጋር

    በዚህ ስብስብ

ከዚህ ፈተና ጥያቄዎችን ይሞክሩ

መልሱን ከመክፈትዎ በፊት እያንዳንዱን ጥያቄ በራስዎ ይመልሱ። ማብራሪያዎቹ ወደ መማሪያ መጽሐፉ ትክክለኛ ክፍል ይጠቁማሉ፤ ስለዚህ ጥያቄ ሲስቱ የትኛውን ገጽ እንደገና ማንበብ እንዳለብዎት ያውቃሉ።

ጥያቄ 1

A city Municipality following the ban of non-degradable plastic bags, proposed to use genetically engineered bacterium to degrade plastic wastes for making bags. However, an authority claims the use of bioengineered bacteria due to the fear of its negative consequences on the environment. Based on this scenario, which decision is valid?

  1. A.accepted with stringent protocols to reduce its effect.
  2. B.rejected since the city can use already existing materials for packing.
  3. C.accepted whatever the environmental consequences it caused.
  4. D.rejected since the municipality can use the native species.
መልሱን እና ማብራሪያውን ይመልከቱ

መልስ፦ A accepted with stringent protocols to reduce its effect.

ለምን

While using bioengineered bacteria has environmental risks, adopting the technology with stringent safety protocols is the scientifically valid approach to mitigate those risks while addressing the plastic waste problem.

ጥያቄ 2

This item is based on the following mechanism of hearing in human ear. I. Nerve impulses produced by hair-like sensory cells are transmitted to, and interpreted by the brain. II. Ear ossicles amplify vibrations and cause vibration of the ear fluid. III. Sound wave from the air is collected by pinna and directs to the ear canal. IV. Vibrations are magnified in eardrum and transmitted to oval window. Then which of the following order summarizes correct path of hearing in human ear?

  1. A.III, I, II, IV
  2. B.III, II, IV, I
  3. C.III, IV, II, I
  4. D.III, IV, I, II
መልሱን እና ማብራሪያውን ይመልከቱ

መልስ፦ C III, IV, II, I

ለምን

The correct path of hearing is: Pinna collects sound (III) → Eardrum vibrates (IV) → Ossicles amplify vibrations (II) → Nerve impulses sent to brain (I). The correct sequence is III → IV → II → I.

ጥያቄ 3

Which one of the following is the industrial importance of insects?

  1. A.Serving as pollinating agents for plants
  2. B.Producing silk fibers for textiles
  3. C.Controlling pests that attack crops
  4. D.Serving as the source of pain-relieving drugs
መልሱን እና ማብራሪያውን ይመልከቱ

መልስ፦ B Producing silk fibers for textiles

ለምን

Sericulture (the rearing of silkworms) is a major industrial process used to produce silk fibers for the textile industry.

ጥያቄ 4

Two processes were taking place inside a eukaryotic cell. In process A, a ribosome made a specific protein by reading the instructions from mRNA. In process B, an mRNA was synthesized inside the nucleus. Based on this scenario, which of the following processes correctly 2018 Biology First Round represents A and B respectively?

  1. A.Translation and Replication
  2. B.Transcription and Translation
  3. C.Replication and Translation
  4. D.Translation and Transcription
መልሱን እና ማብራሪያውን ይመልከቱ

መልስ፦ D Translation and Transcription

ለምን

Process A (ribosome reading mRNA to make a protein) is Translation. Process B (mRNA synthesis in the nucleus) is Transcription.

ጥያቄ 5

Which one of the following statements is correct about regulation of enzyme through covalent modification? It happens through the

  1. A.permanent binding of effectors to the active site of an enzyme.
  2. B.addition or elimination of some molecules attaching of enzyme protein.
  3. C.reversible binding of effectors to the allosteric site of an enzyme.
  4. D.inhibition of the enzyme by the end product of a pathway.
መልሱን እና ማብራሪያውን ይመልከቱ

መልስ፦ B addition or elimination of some molecules attaching of enzyme protein.

ለምን

Covalent modification regulates enzyme activity through the addition or removal of specific chemical groups (e.g., phosphate, methyl) to/from the enzyme protein.

ጥያቄ 7

A farmer crossed a heterozygous insect-resistant maize with a non-insect resistant maize variety, where insect-resistance gene is dominant over non-resistance one. What is the probability of the offspring resulted from this cross?

  1. A.75% resistant and 25% are non-resistant to insect infestation.
  2. B.50% resistant and 50% are non-resistant to insect infestation.
  3. C.25% resistant and 75% are non-resistant to insect infestation.
  4. D.100% of the offspring are resistant to insect infestation.
መልሱን እና ማብራሪያውን ይመልከቱ

መልስ፦ B 50% resistant and 50% are non-resistant to insect infestation.

ለምን

A cross between a heterozygote (Rr) and a homozygous recessive (rr) yields 50% Rr (resistant) and 50% rr (non-resistant).

ሙሉውን ፈተና በ PDF ያውርዱ

በዚህ ስብስብ ያሉት 94 ጥያቄዎች ሁሉ እንደ ታትሞ የወጣ ፈተና፣ የመልስ ቁልፉም ከ94 ማብራሪያዎች ጋር እንደ ሁለተኛ ፋይል። ያትሟቸው ወይም ያለ ዳታ ያንብቧቸው።

ነጻ ነው፤ መለያም አይጠይቅም።

ሙሉውን ፈተና በሰዓት ተገድበው ይስሩ

ነጻ የ Temari መለያ ሙሉውን የባዮሎጂ ፈተና እና የሌሎች ዓመታትንም ሁሉ በሰዓት የተገደቡ የሙከራ ፈተናዎች አድርጎ ከወዲያውኑ ውጤት ጋር ይሰጥዎታል። በማንኛውም ስልክ ላይ፣ ደካማ ግንኙነት ላይም ይሰራል።

በነጻ ልምምድ ይጀምሩ

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

የ2018 ዓ.ም. ሌሎች የባዮሎጂ ፈተናዎች

ይህን ፈተና ከመቀመጥዎ በፊት ባዮሎጂ ያጥኑ

የ12ኛ ክፍል ባዮሎጂ አጭር ማስታወሻዎች 20 ካርዶች አሏቸው። እያንዳንዱ ከአገር አቀፉ መጽሐፍ ምዕራፍ በምዕራፍ ተዘጋጅቶ ሕጉን፣ ምልክቶቹ ምን እንደሚወክሉና ውጤት የሚያሳጣውን ስህተት ይናገራል።

የባዮሎጂ ማስታወሻዎችን ይክፈቱ
እነዚህ እውነተኛዎቹ የ2018 ዓ.ም. የባዮሎጂ መግቢያ ፈተና ጥያቄዎች ናቸው?

አዎ። ተማሪዎች በ2018 ዓ.ም. (2026) ከተፈተኑበት ብሔራዊ የዩኒቨርሲቲ መግቢያ የባዮሎጂ ፈተና የተወሰዱ ናቸው። ስብስባችን ከጥያቄዎቹ 94 ያህሉን ይዟል፤ እያንዳንዱም መልስና ወደ መማሪያ መጽሐፉ የሚጠቁም ማብራሪያ አለው።

ሙሉውን ፈተና እንዴት እለማመዳለሁ?

በስልክ ቁጥር ነጻ መለያ ይክፈቱ። ሙሉው ፈተና በሰዓት የተገደበ የሙከራ ፈተና ሆኖ ወዲያውኑ ውጤት ይሰጣል፣ በወር 199 ብር የሆነው የ AI አጋዥ ማሻሻያም ያመለጠዎትን ሁሉ ያስረዳዎታል።

የ2018 ዓ.ም. የባዮሎጂ ፈተናን በ PDF ማውረድ እችላለሁ?

አዎ፤ ነጻም ነው። የጥያቄ ወረቀቱ አንድ ፋይል ነው፤ የመልስ ቁልፉ ከማብራሪያዎቹ ጋር ሌላ ፋይል ነው፤ ስለዚህ ፈተናውን መጀመሪያ መሞከር ይችላሉ። ያትሟቸው፣ ወይም ዳታ በሌለበት ጊዜ ለክለሳ በስልክዎ ላይ ያስቀምጧቸው።

ይግቡመለያዎን ይክፈቱ