for class XI model questions 2067 Biology

Zoology class XI model questions set 1
1. Give very short answers of the followings (any seven) 1x7=7
1.1. Classify liver fluke.
1.2. What is adaptational feature of apes .
1.3. List the classes of the phylum Porifera.
1.4. What is sinus venosus ?
1.5. How is the biological science related to physics ?
1.6. What is natural selection ?
1.7. Differentiate between anadromous migration and catadromous migration in fishes .
1.8. Write about the premordial atmosphere of the earth .
1.9. Define homologous organ with example .
1.10. Give scientific name of any two endangered mammal.

2. Give short answers of the followings (any five ) 3x5=15
2.1. What is extinction ?what are the causes of extinction?
2.2. Draw well labeled diagram of alimentary canal of frog.
2.3. Describe in brief the female reproductory organ of female earth worm.
2.4. Discuss the gamogony phase of life cycle of plasmodium vivax.
2.5. Explain the biochemical origin of life.
2.6. Explain the asexual reproduction of paramecium .
2.7. Explain the renal portal system found in frog .


3. What is reproduction ?Describe male reproductive organ of frog
with well label diagram . [7.5]

or
Give an account of conjugation in Paramecium caudatum and discuss its significance.
4.Define evolution .Explain the evolution of man from the pre ape man . [8]




Botany class XI model questions set 1
1. Give very short answers of the followings (any seven) 1x7=7
1.1. Differentiate between primary and secondary succession ?
1.2. Differentiate between primary and secondary succession.
1.3. Define binomial nomenclature .
1.4. What part of moss have diploid cells ?
1.5. Why are the blue green algae blue green in color ?
1.6. Define alternation of generation.
1.7. Define syngenesious stamen .
1.8. Name the chemical components of DNA.
1.9. Name the storage found in green and brown algae .
1.10. What do you mean by tetradynamous stamens ?

2. Give short answers of the followings (any five ) 3x5=15
2.1. Describe and structure and function of amino acids .
2.2. Discuss the changes that occur during metaphase of Mitosis.
2.3. Explain food chain with examples.
2.4. Explain about the structure and function of mitochondria .
2.5. Give beneficial aspects of Lichen.
2.6. What are the methods of forest conservation?
2.7. Draw a labelled diagram of mitotic anaphase and also mention its characteristic.

3. Give the distinguishing character of Solanaceae with its floral formula and floral diagram. Write the scientific name of sunflower , radish, maize and gram. [7.5]
OR
Discuss the vegetative structure and life cycle of mushroom .

4. Define bio geo chemical cycle . Describe nitrogen cycle in nature [8]









Zoology class XI model questions set 2
1. Give very short answers of the followings (any seven) 1x7=7
1.1. Define coacervate.
1.2. Give the function of seminal vesicles of earth worm .
1.3. Define homologous organ with example .
1.4. Name the various forms of locomotory organ found in aquatic animals .
1.5. Name the excretory organ found in Platyhelminthes and Annelids.
1.6. Define Neo Darwinism.
1.7. Define ornithology.
1.8. What was archaeopteryx ?
1.9. What is the functions of akinetes?
1.10. What is reflex action ?

2. Give short answers of the followings (any five ) 3x5=15
2.1. List the Volant adaptational characters of birds.
2.2. Give the significance of archaeopteryx in the study of evolution .
2.3. Explain the relation of biology with other science .
2.4. How exconjugants are formed during conjugation of paramecium ?
2.5. Explain the histological structure of liver of frog .
2.6. "Cro-Magnon is immediate ancestor of modern man " justify.
2.7. Explain the hepatic portal system found in frog .

3. Give an account of the structure of digestive tract of Pheretima. [7.5]
OR
Describe the structure of heart of frog with necessary diagram

4. Write an Essay on Darwinism. [8]







Botany class XI model questions set 2
1. Give very short answers of the followings (any seven) 1x7=7
1.1. Define the terms phycology and mycology.
1.2. Why yeast placed in fungi?
1.3. What is cell theory ?
1.4. Name two chemical components in the structure of virus.
1.5. In which food chain pyramid of number is inverted?
1.6. Name two economically important fungi.
1.7. State what spiklet inflorescence is.
1.8. Name four green house gasses .
1.9. Define the term coenocytic hypha.
1.10. What is acid rain ?

2. Give short answers of the followings (any five ) 3x5=15
2.1. Differentiate between mitotic and meiotic cell division.
2.2. Describe and structure and function of amino acids .
2.3. What is pesticides? What are the hazards caused by pesticides?
2.4. List the characteristics of gymnosperm .
2.5. Write briefly about the structure and function of nucleus .
2.6. Draw diagrammatic life cycle of Funaria . No description is needed .
2.7. Discuss the consequence of ozone layer depletion .

3. Give the distinguishing character of solanaceae with its floral formula and floral diagram. Write the scientific name of sunflower , radish, maize and gram[7.5]
Or
Discuss the vegetative structure and life cycle of mushroom .

4. Define bio geo chemical cycle . Describe nitrogen cycle in nature [8]







Zoology class XI model questions set 3
1. Give very short answers of the followings (any seven) 1x7=7
1.1. Give the scientific name of tapeworm and wall lizard.
1.2. Discuss the role of variation in organic evolution .
1.3. How do insects differ from Arachnida?
1.4. Define fossil.
1.5. What are early primates resemble to ?
1.6. Give two example of vestigial organ.
1.7. What is reflex arc?
1.8. What is the function of choanoderm in Porifera?
1.9. Who suggested that monkeys, apes and man have a common ancestor ?
1.10. Name the muscles that controls the setae of earthworm .


2. Give short answers of the followings (any five ) 3x5=15
2.1. Explain arboreal adaptation among reptiles.
2.2. Give an account on Australopithecus.
2.3. Represent diagrammatically the process of conjugation in paramecium .
2.4. Write in brief the erythrocytic cycle of Plasmodium.
2.5. Describe the experiment of Urey miller for the origin of life .
2.6. Differentiate between chondrichthys and oesteichtys fish .
2.7. Give the adaptational modifications found in scansorial animals .

3. Describe the reproductive organ of earthworm. [7.5]
Or
Describe the internal structure of heart in frog and give its working mechanism.

4. Write an Essay on Lamarckism. Write down the demerits of this theory and about the Neo Lamarckism. [8]






Botany class XI model questions set 3
1. Give very short answers of the followings (any seven) 1x7=7
1.1. What is the function of heterocyst?
1.2. Name two edible mushroom available in market .
1.3. Why is Spirogyra placed in algae?
1.4. Name two type recemose inflorescence you have studied.
1.5. Name the chemical components of RNA.
1.6. Name the storage found in green and brown algae .
1.7. What do you mean by tetradynamous stamens ?
1.8. Mention any two points of differences between primary and secondary mycelium.
1.9. Name the major components of virus .
1.10. Define the term nucleotide.

2. Give short answers of the followings (any five ) 3x5=15
2.1. Discuss the economic importance of fungi.
2.2. Give the structure and function of Golgi complex.
2.3. Differentiate between metaphase I and metaphase II of meiosis.
2.4. State the economic importance of the family solanaceae.
2.5. Draw diagrammatic life cycle of spirogyra. (no description)
2.6. Discuss the consequences of acid rain .
2.7. Explain the structure and functions of mitochondria.

3. What is altenation of generation ?Explain it with suitable diagram in a Marchantia. [7.5]
OR
Explain the characters of the family Papilionaceae in semitechnical term
with floral diagram and floral formula .Discuss any two major importance
of this family .

4. What is energy flow .Explain how it takes place in terrestrial ecosystem. [8]




Zoology class XI model questions set 4
1. Give very short answers of the followings (any seven) 1x7=7
1.1. Give scientific names of any two endangered mammals of Nepal.
1.2. Define Osteology.
1.3. Which technique is used to know the age of fossils ?
1.4. Give the functions of Typhlosole in Earth worm.
1.5. Write Scientific names of frog and star fish.
1.6. What do you mean by the word Arthropoda?
1.7. What is adaptation?
1.8. What is catadromous migration?
1.9. What is serological test?
1.10. What is torsion ? Give one example of animal which shows torsion .

2. Give short answers of the followings (any five ) 3x5=15
2.1. Discuss about the Cro magnon man.
2.2. Give the characteristic feature of class Aves.
2.3. Draw a neat and labeled diagram of Paramecium.
2.4. Give the functions of skin of earthworm.
2.5. How does cocoon formation takes place in earthworm?
2.6. Give a brief description of the T.S. of the testis of frog with neat labeled diagram.
2.7. Enumerate the characters of Annelida .

3. Give an account of life cycle of Plasmodium in man . [7.5]
OR
Discuss the reproductive system of Frog.

4. What is organic evolution ?Trace out evolution of man starting from Ramapethicus . [8]






Botany class XI model questions set 4
1. Give very short answers of the followings (any seven) 1x7=7
1.1. Define net primary productivity.
1.2. What is trophic level.
1.3. What do you mean by succession?
1.4. Why is lysosomes called as suicidal bag ?
1.5. Write any two consequence of acid rain.
1.6. Mention the chemical components of virus.
1.7. Write the meaning of syngenesis.
1.8. What is the function of pyrenoid ?
1.9. What is nucleotides ?
1.10. What do you mean by pioneer community in water and land ?

2. Give short answers of the followings (any five ) 3x5=15
2.1. Mention any three points of difference between Akinetes and Aplanospore.
2.2. Draw a well labeled diagram of cell structure of Nostoc.
2.3. Explain the structure and function of nucleus.
2.4. Discuss the changes that occur during anaphase of Mitosis.
2.5. Explain food web.
2.6. Explain about the structure and function of plastids .
2.7. What is nitrogen fixtaion ? How is nitrogen fixed in the cell ?


3. What is alternation of generation ?Explain it with suitable diagram in a Funaria ? [7.5]
OR
Explain the characters of the family Gramineae in semi technical terms
with its floral diagram and floral formula . Discuss any two major economic
importance of this family .

4. What is ecosystem ?Discuss the structural and functional aspects of any one ecosystem
you have studied. [8]







Zoology class XI model questions set 5
1. Give very short answers of the followings (any seven) 1x7=7
1.1. Define phylogeny.
1.2. What is Cyclosis in Paramecium.
1.3. What are analogous organ ?Give two examples.
1.4. Give two identifying characters of Echinodermata.
1.5. Mention the classes of phylum Porifera with one example of each .
1.6. What is taxis ?
1.7. Write the meaning of Signet-ring stage.
1.8. Name any endangered animal of Nepal .
1.9. Malarial patient shows the symptoms of malaria in every 48 hours.Why?
1.10. What are nematocysts?

2. Give short answers of the followings (any five ) 3x5=15
2.1. Explain the experiment of Miller Urey .
2.2. Explain the binary fission in paramecium with a well labeled diagram.
2.3. Differentiate between old world monkey and new world monkey.
2.4. Explain the characteristic of leadership.
2.5. Describe the types of migratory fish.
2.6. How sound is produced in frog ?
2.7. Explain different causes of birds migration .

3. Explain the Lemarck’s theory of inheritance of acquired characters with its draw backs. [8]

4. What is portal system ?Describe it with reference to frog . [7.5]
or
Describe the digestive organ of earthworm with a labelled diagram.





Botany class XI model questions set 5
1. Give very short answers of the followings (any seven) 1x7=7
1.1. Name the pigments found in red algae.
1.2. Give the full form of ADP and AMP.
1.3. Give the example of monosacchride and disacchride.
1.4. Give the difference of cisternae and cristae.
1.5. What are leucoplast? Mention their function.
1.6. What is grazing food chain?
1.7. What are primary and secondary myceliums in Agaricus?
1.8. Write two important effect of acid rain.
1.9. How does DNA differ from RNA.
1.10. Which cell organnele is responsible for cell plate formation.

2. Give short answers of the followings (any five ) 3x5=15
2.1. Illustrate the haplo diplo biontic life cycle of yeast .
2.2. Draw well lable diagram of cynobacterical cell .
2.3. What is gametophyte ?Describe it in fern plant .
2.4. Draw outline sketch of 5kingdom classification also mention its basis on which it has been classified.
2.5. Give beneficial aspects of bacteria.
2.6. What are the methods of water resource conservation?
2.7. Draw a labeled diagram of mitotic metaphase and also mention its characteristic.

3. What is mitosis ?explain about the process of mitosis. (7.5)
or
Describe family Cruciferae in semi technical terms with its Floral diagram and floral formula.

4. Describe the nitrogen cycle in nature . (8)


Zoology class XI model questions set 6
1. Give very short answers of the followings (any seven) 1x7=7
1.1. Classify Paramecium in scientific position .
1.2. What do you mean by microbiology.
1.3. What is metamerical segmentation?
1.4. Define Endangered Species .Give scientific names of two endangered species.
1.5. What is taxis ?
1.6. Define the term coelom .Give any two examples of coelomate animals .
1.7. List the classes of phylum mollusca.
1.8. List the type of migration in birds.
1.9. which trait is unique to the human species among primates ?
1.10. Name any two renewable sources of Nepal.

2. Give short answers of the followings (any five ) 3x5=15
2.1. Give some characters of cro-magnon Man.
2.2. Write the objective and conclusion of Urey miller experiment .
2.3. Discuss how fossils give the evidences of evolution .
2.4. Draw a labelled sketch of the TS of gizzard of earthworm.
2.5. Give an account of binary fission of paramecium.
2.6. Describe the aquatic adaptation feature of fishes .
2.7. What are the function of liver in frog?

3. Describe the process of food digestion in frog. [7.5]
or
Describe the life cycle of plasmodium vivax in human body

4. Explain Lamarck's theory of inheritance of acquired character with examples. [8]






Botany class XI model questions set 6
1. Give very short answers of the followings (any seven) 1x7=7
1.1. What is the function of acinates in Nostoc.
1.2. Give types of fruits found in family Gramineae.
1.3. What is lichens?
1.4. Give the meaning of plasmogamy and karyogamy
1.5. What are dwarf shoot in Pinus?
1.6. What is cyclosis?
1.7. What are the characteristic features of telophase of mitosis ?
1.8. What is tetradyanmous condition of stamens
1.9. Define food chain ?
1.10. Write down the pigment and storage food material found in phaeophyceae.

2. Give short answers of the followings (any five ) 3x5=15
2.1. Differentiate between prokaryote and eukaryotic cells.
2.2. Describe the structure of DNA in short .
2.3. How is arcegonium formed in Funaria ?discuss .
2.4. Draw a lable diagram of bacterial cell.
2.5. Compare eukaryotic and prokaryotic cell.
2.6. Describe the vegetative structure of spirogyra .
2.7. Describe the carbon cycle in nature in short.

3. Discuss the prophase I of meiosis with suitable diagram and give differences between mitotic and meiotic prophases .
Or
What is the alternation of generation? Describe the process of alternation of generation with reference to the life cycle of Marchantia.
4. Dicuss how ecosystem is maintained in pond . [8]


Zoology class XI model questions set 7
1. Give very short answers of the followings (any seven) 1x7=7
1.1. Classify Malaria parasite.
1.2. Which pigment gives the dark brown pigmentation in earthworm?
1.3. Give one example of each of class Trematoda and Calcarea.
1.4. Why is responsibility given to human for the protection of earth ?
1.5. Give two important features of java man .
1.6. Name the organelles in Paramecium controlling Osmoregulation and vegetative functions
1.7. What is Neo-Darwinism?
1.8. Give two main identifying characters of Aves.
1.9. Mention the classes of phylum Platyhelminthes.
1.10. Give the position of brain in earth worm.

2. Give short answers of the followings (any five ) 3x5=15
2.1. Give the diagrammatic representation of Miller and Urey experiment in support of biochemical origin of life .
2.2. Describe male reproductive organ of frog in short.
2.3. Describe sporogony of Plasmodium.
2.4. Describe the animal behaviour related to sneezing.
2.5. Explain in brief Oparin Haldane's Theory of Origin of life.
2.6. Give the characteristics of african ape man.
2.7. What are homologous organs? How do homologous organs supports organic evolution?

3. Describe the reproductive organ of earthworm. (7.5)
OR
Describe the structure of heart of frog with well labeled diagram.

4. Write an essay on evolution of man . [8]













Botany class XI model questions set 7
1. Give very short answers of the followings (any seven) 1x7=7
1.1. What are reducing sugars ?
1.2. What is phycology ?
1.3. Why are lichens called bio indicators of air pollution ?
1.4. What is meant by Binomial nomenclature?
1.5. How do you identify Anaphage of mitotic cell division?
1.6. Write the floral formula of Leguminoceae Family.
1.7. What do you understand by green house effect?
1.8. Lysosome is called suicidal bag of cell. why?
1.9. Write the function of heterocyst in nostoc.
1.10. How the glycosidal bond is formed?

2. Give short answers of the followings (any five ) 3x5=15
2.1. Draw a neat floral diagram of crucifera and graminea.
2.2. How does Pioneer Stage from Climax stage in succession.
2.3. Explain the beneficial aspects of bacteria.
2.4. Describe the heterothallic reproduction in spirogyra species.
2.5. Define Primary and secondary succession.
2.6. Describe the structure and function of chloroplast .
2.7. Write down the chromosomal changes found during Pachytine sub stages of prophase I.

3. Describe family Poaceae in semi technical terms with floral formula and diagram .Write botanical name of three economical important plants of this family. [7.5]
or
Describe about sexual life cycle of Spyrogyra with neat and labeled diagram.

4. What is bio geo chemical cycle ?explain the Nitrogen cycle with graphical representation. [8]





Zoology class XI model questions set 8
1. Give very short answers of the followings (any seven) 1x7=7
1.1. What is meant by polyphydont teeth?
1.2. Define alternation of generation .
1.3. Define the term "Incubation period".
1.4. What are apes ?
1.5. With which animal do you fine the following parts .i)muscular foot ii)flame cell.
1.6. Give the scientific name of any two triploblastic insects.
1.7. What does Oparin’s theory suggest ?
1.8. Define the portal system .
1.9. Write the biological name of i)sea-lily ii)jelly-fish .
1.10. What is the nearest ancestor of modern man ?

2. Give short answers of the followings (any five ) 3x5=15
2.1. What are the adaptational features of volant animal?
2.2. Justify "fossil provides incomplete evidence of organic evolution ".
2.3. Write in brief about Pancreas of frog .
2.4. Mention the characteristic of Javaman and Neanderthal man .
2.5. Write in brief sporogony phase of life cycle in plasmodium .
2.6. Enumerate the characters of the phylum Platyhelminthes with two example .
2.7. Discuss the process of spermatogenesis.

3. Describe the process of reproduction of plasmodium in its secondary host. [7.5]
Or
What is portal system ? Discuss that of frog with necessary diagram .

4. Describe Oparin Haldane theory of origin of life. Why is this theory widely accepted? . [8]



Botany class XI model questions set 8
1. Give very short answers of the followings (any seven) 1x7=7
1.1. Write two importances of proteins in organisms.
1.2. Mention major changes occurring at Anaphage of mitosis.
1.3. Give a chief function of Ribosome.
1.4. Mention two methods of forest conservation.
1.5. Give the meaning of hierarchy in taxonomy.
1.6. Write two important characters of Monera.
1.7. Write Floral Formula of mustard plant.
1.8. Mention one important difference between red and brown algae.
1.9. What are the short coming of two -kingdon system of classification ?
1.10. How the peptide bond is formed?


2. Give short answers of the followings (any five ) 3x5=15
2.1. Show the nitrogen cycle diagramatically.
2.2. Explain the prophase 1 of mitotic cell division.
2.3. Describe types of lysosomes and why is it called suicidal bag?
2.4. What do you mean by ozone layer depletion ?Describe its consequences .
2.5. Describe the structure and function of plasma membrane .
2.6. What are proteins ?Discuss their functions .
2.7. Discuss the economical importances of lichens .


3. Describe life cycle of Funaria with graphical representation. [7.5]
Or
Describe family Solanaceae with all necessary diagrams and also mention scientific names of three economical important plants of this family.

4. Define food chain and discuss it with reference of grass land ecosystem . [8]


Zoology class XI model questions set 9
1. Give very short answers of the followings (any seven) 1x7=7
1.1. Give the position of testis and ovary of Pheretima.
1.2. Why does the cross fertilization take place in earthworm?
1.3. Give the biological name of flying lizard and spider.
1.4. Give two examples of endangered species of wildlife.
1.5. Mention the enzyme found in the duodenum.
1.6. Write down the function of ovaries of frog.
1.7. What is vector?
1.8. What is catadromous migration?
1.9. Give two important features of Peking man .
1.10. Give one example of each of class Cestoda and Oligochaeta.



2. Give short answers of the followings (any five ) 3x5=15
2.1. Explain the structure of a tooth in Rana tigrina.
2.2. Mention the characteristic of Neanderthal man .
2.3. Explain the biogenetic law as evidence of organic evolution.
2.4. What are the functions of pancreas in frog?
2.5. Differentiate between old world monkey and new world monkey.
2.6. Write in brief the pre and exo erythrocytic cycle of Plasmodium.
2.7. Explain the relation of biology with other science .

3. Describe the digestive system of earthworm with well labeled diagram. [7.5]
Or
Describe the conjugation in paramecium with necessary diagram .Also give its significance .

4. Describe the Darwin's theory of natural selection . [8]



Botany class XI model questions set 9
1. Give very short answers of the followings (any seven) 1x7=7
1.1. What is capsid ?
1.2. Name the type of vascular bundle found in pinus stem .
1.3. Define taxomomy .
1.4. Give the composition of deoxyribonucleic acid .
1.5. Give the chemical component of virus .
1.6. Define syngenesous anther lobes .
1.7. Name any two micro nutrient and their role .
1.8. Write a difference between mesosomes and ribosomes .
1.9. Name any two human diseases caused by bacteria.
1.10. Define epipetalous stamens.


2. Give short answers of the followings (any five ) 3x5=15
2.1. Justify "viruses are both living and non living body”.
2.2. Define meiosis. Give diagrams for prophase of meiosis I ( no description required )
2.3. Discuss the role of bacteria in medecine.
2.4. Write down the differences between green algae and brown algae .
2.5. Describe the asexual reproduction in mucor.
2.6. Write down the consequence of acid rain.
2.7. Give an account of structure and function of golgi appratus.

3. Describe the family Solanaceae with necessary diagram and mention two economically important plant . [7.5]
Or
Describe lifecycle of mushroom with well labeled diagram.

4. Describe the pond ecosystem with well labelled diagram and mention the flow of energy in trophic level. [8]



Zoology class XI model questions set 10
1. Give very short answers of the followings (any seven) 1x7=7
1.1. Write two important significances of conjugation in Paramecium.
1.2. Give reason "Paramecium is a protistan organism".
1.3. What is alternation of host ?
1.4. Define the term "Incubation period".
1.5. Give the biological name of one flying mammal and one flying reptile.
1.6. Give two examples of endangered birds.
1.7. Mention the enzyme found in the stomach of frog.
1.8. Write down the function of testis of frog.
1.9. What is carrier?
1.10. What is meant by acrodont teeth?

2. Give short answers of the followings (any five ) 3x5=15
2.1. What are the functions of pancreas in frog?
2.2. Differentiate between ape and man.
2.3. Write in brief the erythrocytic cycle of Plasmodium.
2.4. What are the adaptational features of aquatic animal?
2.5. Justify "embryology provides evidence of organic evolution ".
2.6. Mention the characteristic of Australopethicus and Homo habilis .
2.7. Describe the animal behavior in short .



3. Describe the alimentary canal of Frog with suitable diagram. (7.5)
Or
Describe the male and female reproductive system of earthworm.

4. Write an essay on evolution of man starting from Ramapethicus. [8]



Botany class XI model questions set 10
1. Give very short answers of the followings (any seven) 1x7=7
1.1. Give two industrial values of fungi.
1.2. Why are cyanobacteria included in Monera?
1.3. Name the pigment found in red algae .
1.4. Who gave 5 kingdom system of classification and when?
1.5. What is the significance of crossing over in meiosis?
1.6. What are the major Green house gasses ?
1.7. What kinds of fruit is called legume ?
1.8. Give one important function of lysosome.
1.9. Mention two methods of forest conservation.
1.10. What is hierarchy in taxonomy?

2. Give short answers of the followings (any five ) 3x5=15
2.1. What are the economical nature of Bacteria?
2.2. Explain the structure of nucleus ?
2.3. Describe a typical flower in brief.
2.4. Name the different biotic components of the pond ecosystem .
2.5. Explain the beneficial aspects of lichen.
2.6. What are the consequences of ozone layer depletion ?
2.7. Describe the structure and function of plasma membrane in short.

3. Explain the nitrogen cycle in nature with graphical representation. [8]

4. Describe the sexual reproduction in Mucor with diagram. [7.5]
Or
Give the distinguishing character of sub famaly paplionaceae in semi technical term. Give the floral diagram and floral formula as well as any two economical plants of this family