Second Year Biology Guess Paper 2022 || Biology Guess Paper 1nd Year 2022

Second Year Biology Guess Paper 2022 || Biology Guess Paper 1nd Year 2022

Second year Biology Guess paper 2022 all Punjab Boards-Biology All Boards Guess Paper 2nd Year 2022-12th Biology Guess Paper 2022.

Second Year Biology Guess Paper 2022 || Biology Guess Paper 1nd Year 2022

Second year science surmises paper 2022 Punjab board has been distributed here. You can download the twelfth class science surmise paper 2022 in pdf. The supposition paper incorporates section wise significant inquiries from second year science class 12.

The document is given in pdf which you can download for nothing. second year science section wise significant long inquiries and short inquiries are given. The conjecture paper of second year science for all Punjab sheets for 2022 is here.

The rundown of all full book short inquiries and long inquiries for second year science is given as a pdf record. The new speculation paper for class 12 science in pdf free download here.

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The conjecture paper incorporates significant short inquiries and long inquiries for second year science for 2022. The supposition paper will turn out 100 percent for the Lahore Board, Gujranwala Board, Faisalabad Board, Multan Board, Sargodha Board, Rawalpindi Board, DG Khan board, Bhawalpur board, and Sahiwal board.

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Second year science significant inquiries 2022 speculation

Here are significant inquiries of science class 12 from each section. Section wise significant short inquiries and long inquiries are given.

Searching for the class 12 Biology Guess Paper 2022 tackled and significant definitions and Questions? Here is the second Year (twelfth class) Biology Guess Paper Solved 2022 pdf download or peruse on the web.

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Here, we will share second year Biology surmise paper. It is as indicated by the prospectus recommended by the Punjab Boards. In this twelfth class Biology surmise paper for the tests 2022, we will impart to you different decision questions (MCQs), most significant short inquiries, and significant long inquiries.

Here are important questions of biology class 12 from every chapter. Chapter-wise important short questions and long questions are given. 👇👇👇👇👇👇👇👇👇

Chapter 15

Important Short questions

Define homeostasis with examples.

What are heat shock proteins?

What is a hypertonic and hypotonic environment and what changes occur in cells in this environment?

Differentiate between osmoconformers and osmoregulatory.

Differentiate between active flight and passive flight.

Differentiate between shivering thermogenesis and non-shivering thermogenesis.

Define endotherms, ectotherms, and heterotherms.

Write four adaptations of xerophytes and hydrophytes and mesophytes.

Differentiate between fibers and sclereids.

Differentiate between afferent and efferent arterioles.

Define lithotripsy.

What is hemodialysis? Give its importance.

What is foramen trisodium? How is it formed?

What is renal failure?

Differentiate between ureotelic and ureteric animals.

Define anhydrobiosis with an example.

What is hyperoxaluria?

Differentiate between photo nasty and thermonasty.

Define phototactic and chemotactic movements with examples.

Important Long Questions.

Discuss excretion in Plants.

Discuss Kidney disorders with treatment.

Discuss the role of the liver as an excretory organ.

Discuss the system of thermoregulation in mammals.

Chapter 16

Important Short Questions

Differentiate between bone and cartilage.

Name the unpaired facial bones.

Differentiate between epical, lateral, and intercalary meristems.

What is blastoderm? Name its layers.

What is hematoma formation?

How callus is formed?

What is a synovial joint?

Give the compost on of the exoskeleton in mollusks and arthropods.

Differentiate between hyaline and fibrocartilage.

What is sciatica and its causes?

Differentiate between effective and recovery strokes?

What is non-disjunction? Give its effects.

What is rickets? Give its causes and treatment.

Differentiate between tendons and ligaments.

What are the internal factors that affect the process of growth?

What is secondary growth? Give its importance.

What are brachialis and brachioradialis?

Important Long Questions

What is an endoskeleton? Describe bone and cartilage.

Describe the significance of secondary growth in plants. Phases of plants’ growth.

Give a detailed note on the sliding filament model.

Explain the main parts of the axial skeleton and appendicular skeleton.

Explain different types of joints.

Chapter 17

Important Short Questions

What are effectors? Give their types.

Name only types of innate behavior.

Differentiate between neurula and neurocoel.

Define primary organizer and primary induction.

Draw and label sensory neurons.

Define reflex arc.

Differentiate between nerves and ganglia.

What is salutatory impulse?

What ware hat the effects of nicotine on coordination?

What is chlorosis?

What is a hormone? List its type.

Define habituation with an example.

Give functions of the parathyroid gland and adrenal gland.

What is Alzheimer’s disease?

Important Long Questions

Nervous system of hydra is better developed than that of planaria. Discuss.

Explain the structure and functions of the human brain with a diagram.

Write a note on the adrenal gland.

How nerve impulse is produced? Explain its mechanism with a diagram?

Chapter 18

Important Short Questions

Differentiate between sexual and asexual reproduction.

Define parthenocarpy. Give examples.

What is seed dormancy? Give its importance.

What is photoperiodism? Give its effects on plants.

Define vernalization. Write its two advantages.

Define tissue culture and cloning with examples.

Differentiate between identical and fraternal twins.

Differentiate between oviparous and viviparous.

Define menstrual cycle, estrous cycle, and menopause.

What is diploid parthenogenesis?

What is the structure and function of corpus Leute um?

Name STDs with their relative causative agents.

Define apomixis.

Defined haploid and diploid parthenogenesis?

What is ovulation?

Important Long Questions

Explain the female menstrual cycle.

Explain the male reproductive system of man.

Compare asexual reproduction with sexual reproduction.

Elaborate on the functions of the placenta during pregnancy.

Chapter 19

Important Short Questions

Differentiate between growth and development.

Differentiate between epical, lateral, and intercalary meristems.

Write three signs of aging.

Give two causes of abnormal development.

What is blastoderm? Name its layers.

What are the internal factors that affect the process of growth.

What is discoidal cleavage.

Differentiate between neurula and neurocoel.

What is organogenesis?

Define regeneration for example.

What is meristem?

What do you know about open growth?

Differentiate between the morulla and blastula stage in the development of the chick.

What is the basic difference between a chick an and amphibian embryo?

Define correlation?

Define hypoblast and epiblast?

Describe the role of cytoplasm in development?

What is meant by differentiation?

Important Long Questions

Write a note on the development of the chick.

Describe the signs and causes of abnormal development.

Explain internal and external factors of growth.

Explain the phases of growth in plants.

Chapter 20

Important Short Questions

Define recombinant DNA. Role of lambda phage.

What is an anticodon?

What is a karyotype?

Write 3 major classes of RNA

What is mutation?

Where does DNA replication start on the DNA molecule?

Define the transformation process?

Define chromosomes and nucleosomes?

Define semi-conservative replication?

Explain sex-limited traits.

What is phosphodiester linkage?

Write the main component of DNA.

Define point mutation and chromosomal aberration.

What are Okazaki fragments? Give their length.

Differentiate between transcription and translation?

Important Long Questions

Describe DNA as Hereditary material in?

Explain the works of Meselson and Stahl in DNA study.

What are chromosomes? What do you know about their types?

Explain Watson and Crick’s model of DNA.

Chapter 21

Important Short Questions

What is non-disjunction? Give its effects?

Define the cell cycle. Give its phases.

How cytokinesis occur in animals and plants

What is mitotic apparatus? Give its functions.

Explain homologous and analogous organs.

Give importance to mitosis/meiosis.

What is metastasis? Write its importance.

Differentiate between apoptosis and necrosis.

Write the symptoms and causes of Down’s syndrome?

What is Turner’s syndrome? Give its causes and feature.

Define crossing over.

What is meant by the G0 phase?

How prophase of meiosis differs from that of mitosis?

What is chiasmata?

What is interphase? Why is it called the resting phase?

Chapter 22

Important Short Questions

Define euchromatin.

What is cretinism?

Describe gonorrhea.

What is transformation?

What are allele and gene and gene pool and gene frequency?

What are over dominance and co-dominance?

What is genetic drift? Genetic code. Fixed alleles.

Name any four animals declared extinct in Pakistan.

Define homozygous and heterozygous alleles.

What is Epistasis? What is Bombay Phenotype? Dominance?

Differentiate between genotype and phenotype.

What are totipotency and totipotent cell?

What is true-breeding variety?

What is meant by MODY?

Important Long Questions

Explain epistasis with an example of the Bombay phenotype.

Define and explain Mendel’s Law of segregation.

What is incomplete dominance? Explain with an example.

Explain the phenomenon of gene linkage regarding linkage groups.

Chapter 23

Important Short Questions

Define biotechnology. Give its applications.

Differentiate between molecular scissors and molecular vectors.

Give two requirements to produce recombinant DNA.

Explain and give examples of ex vivo and in vivo gene therapies in humans.

What are transgenic plants?

Give three possible ways to get the gene of interest.

Give two goals of the human genome project.

What is a probe? Give its uses.

Define genomic library.

Chapter 24

Important Short Questions

How artificial selection is different from natural selection.

State theory of special creation.

Name any four animals declared extinct in Pakistan.

Define neo Darwinism/modern synthesis?

Define population genetics.

What are hydrothermal vents? How do they support life?

What are vestigial organs? Name some important vestigial organs of man.

Define fossils? How do they provide evidence of evolution?

What are endangered and threatened species? Give some examples.

What is the Hardy-Weinberg theorem? Give its equation.

Differentiate between homologous and analogous organs.

State endosymbiont hypothesis.

Important Long Questions

Discuss evolution from prokaryotes to eukaryotes.

Describe the evolution in various branches of biology like biogeography and fossil study.

Explain Darwin’s theory of natural selection.

Chapter 25

Important Short Questions

Write down the types of living organisms found in the limnetic zone. (its life) (2)

Differentiate between climate and weather. (3)

Define renewable and nonrenewable resources. (5)

Define ecosystem, biosphere, and biome.

Differentiate between population and community with examples.

Differentiate between synecology and autecology.

What is predation? Give its significance.

Define parasitism and commensalism.

Define food chain and food web.

Differentiate between habitat and niche.

Differentiate between consumers and decomposers.

Differentiate between hydrosere and xerosere.

Differentiate between primary succession and secondary succession.

Important long questions

Write a note on the nitrogen cycle.

Explain the biotic components of an ecosystem.

Explain xerosere succession stages.

Explain the flow of energy in a food chain.

Chapter 27

Important Short Questions

Define deforestation and afforestation.

What is the ozone layer? Give its important function in the environment.

Define water pollution and acid rain.

Write a brief note on non-renewable energy resources.

Explain the causes and effects of ozone depletion.

Give main causes/sources of water pollution.

What is solid waste? Give its importance.

Define the greenhouse effect. Give its effects on the environment.

Trees as environmental buffers.

Important long questions

Describe deforestation and its effects.

Write a note on a)ozone depletion and b)greenhouse effect

Explain the importance of forests/trees

Briefly explain and causes and effects of air pollution.

Best Of Luck All Students :👆👆👆👆

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