Class 10 Science Chapter 8 How Do Organisms Reproduce? The answer to each chapter is provided in the list so that you can easily browse throughout different chapters NCERT Class 10 Science Chapter 8 How Do Organisms Reproduce? and select need one.
Class 10 Science Chapter 8 How Do Organisms Reproduce?
Also, you can read the SCERT book online in these sections Solutions by Expert Teachers as per SCERT (CBSE) Book guidelines. These solutions are part of SCERT All Subject Solutions. Here we have given Assam Board Class 10 Science Chapter 8 How Do Organisms Reproduce? Solutions for All Subjects, You can practice these here…
Multiple Choice Questions
Q.1. One of the following organisms does not reproduce by binary fission. This is
( a ) Amoeba.
( b ) Plasmodium.
( c ) Leishmania.
( d ) Paramecium.
Ans :- ( b ) Plasmodium.
Q.2. The micro-organism which reproduces by multiple fission is the one which causes the disease known as :
( a ) Kala – azar.
( b ) Marasmus.
( c ) Malaria.
( d ) Amoebiasis.
Ans :- ( c ) Malaria.
Q.3. The protozoa having a flagellum at its one end is
( a ) Amoeba.
( b ) Paramecium.
( c ) Hydra.
( d ) Leishmania.
Ans :- ( d ) Leishmania.
Q.4. In the list of organisms given below those which both reproduce by the asexual method are
( i ) Banana.
( ii ) Yak.
( iii ) Yeast.
( iv ) Amoeba
( a ) ( ii ) and ( iv )
( b ) ( i ) ( iii ) and ( iv )
( c ) ( i ) and ( iv )
( d ) ( ii ) ( iii ) and ( iv )
Ans :- ( b ) ( i ) ( iii ) and ( iv )
Q.5. One of the following organism does not reproduced by bedding this is :
( a ) Spouge.
( b ) Yeast.
( c ) Hydra.
( d ) Planaria.
Ans :- ( d ) Planaria.
Q.6. The disease Kala – azar is caused by a micro – organism knows as
( a ) Planoria.
( b ) Leech.
( c ) Leishmania.
( d ) Plasmodium.
Ans :- ( c ) Leishmania.
Q.7. Reproduction is essential for living organisms in order to –
( a ) Keep the individual organ alive.
( b ) Fulfil their energy requirements.
( c ) Maintain growth.
( d ) Continue the species forever .
Ans :- ( d ) Continue the species forever .
Q.8. The unicellular organism which reproduces by budding is –
( a ) Spirogyra.
( b ) Hydra.
( c ) Planaria.
( d ) Yeast
Ans :- ( d ) Yeast.
Q.9. A multicellular organism which reproduces by bedding is–
( a ) Amoeba.
( b ) Yeast.
( c ) Leishmania.
( d ) Hydra.
Ans :- ( d ) Hydra.
Q.10. The offsprings formed by asexual reproduction method have greater similarity among similarity among themselves because–
( i ) A sexual reproduction involves only one parent.
( ii ) A sexual reproduction involves two parents.
( iii ) A sexual reproduction involves gametes.
( iv ) A sexual reproduction doesnot involves gameteo.
( a ) ( i ) and ( ii )
( b ) ( i ) and ( iii )
( c ) ( ii ) and ( iv )
( d ) ( i ) and ( iv )
Ans :- ( d ) ( i ) and ( iv )
Q.11. A simple multicellular animal having tenlacles which lives in fresh water usually reproduces by the asexual process of :
( a ) Binary fission.
( b ) Spore formation.
( c ) Bedding.
( d ) Fragmentation.
Ans :- ( C ) Bedding.
Q.12. One of the following does not reproduce by spore formation method . This is
( a ) Rhizopus fungus.
( b ) Penicillium fungus.
( c ) Yeast fungus.
( d ) Mucor fungus.
Ans :- ( c ) Yeast fungus.
Q.13. One of the following reproduces by forming spores . This in :
( a ) Fern.
( b ) Planaria.
( c ) Spirogyra.
( d ) Potato.
Ans :- ( a ) Fern.
Q.14. Asexual reproduction through budding takes place in :
( i ) Amoeba and yeast .
( ii ) Yeast and Hydra.
(iii) Hydra and plasmodium.
( iv ) Corals and sponges.
( a ) ( i ) and ( ii )
( b ) only ( ii )
( c ) ( i ) and ( iii )
(d) ( ii ) and ( iv )
Ans :- ( d ) ( ii ) and ( iv )
Q.15. A feature of reproduction that is common to Amoeba, yeast and Bacterium is that :
( a ) They are all multicellular.
( b ) They are all unicellular.
( c ) They reproduce only sexually.
( d ) They reproduce asexually.
Ans :- ( d ) They reproduce asexually.
Q.16. One of the following organisms does not reproduce by fission. This is :
( a ) Amoeba.
( b ) Leishmania.
( c ) Planaria.
( d ) Plasmodium.
Ans :- ( c ) Planaria.
Q.17. An organism which may be considered to be a kind of plant and reproduces by budding is :
( a ) Paramecium.
( b ) Bread mould
( c ) Hydra.
( d ) Yeast.
Ans :- ( d ) Yeast.
Q.18. An animal which reproduces by the process of budding is –
( a ) Plasmodium.
( b ) Yeast.
( c ) Hydra.
( d ) Planaria.
Ans :- ( c ) Hydra.
Q.19. In spirogyra , a sexual reproduction takes place by:
( a ) Division of cell into two cells
( b ) Breaking up of filaments into smaller bits.
( c ) Division of a cell into many cells.
( d ) Formation of a large number of buds .
Ans :- ( b ) Formation of a large number of buds .
Q.20. The ability of a cell to divide into several cells during reproduction in plasmodium is called :
( a ) Budding.
( b ) Fragmentation.
( c ) Binary fission.
( d ) Multiple fission.
Ans :- ( d ) Multiple fission.
Q.21. Rhizopus fungus , the fine thread like structures spread on the whole surface of slice of bread are called:
( a ) Rhizoids.
( b ) Stems.
( c ) Roots.
( d ) Hyphae.
And :- ( d ) Hyphae.
Q.22. The two organisms which can regenerate fully from their cut body parts are :
( a ) Paramecium and Hydra.
( b ) Hydra and Amoeba.
( c ) Planaria and Leishmania.
( d ) Hydra and Planaria.
Ans :- ( d ) Hydra and Planaria.
Q.23. The two types of organisms which produce colonies by the process of badding are :
( a ) Hydra and Corals
( b ) Yeast and Sponges.
( c ) Corals and Sponges.
( d ) Hydra and Yeast.
Ans :- ( c ) Corals and Sponges.
Q.24. Spone formation is the most common asexual mathod of reproduction in :
( a ) Protozoa.
( c ) Tubers.
( c ) Furgi.
( d ) Algae.
Ans :- ( c ) Furgi.
Q.25. An alga which reproduces by the asexual reproduction method called fragmentation is :
( a ) Rhizopus.
( b ) Salmonella.
( c ) Plasmodium.
( d ) Spirogyra.
Ans :- ( d )
Q.26. Binary fission describes the type of reproduction where the organism divides to form :
( a ) Many spores.
( b ) Two daughters.
( c ) Many buds.
( d ) Two hyphae.
Ans :- ( b ) Two daughters.
Q.27. The cut part of a plant step which is used in grafting is called :
( a ) Stock.
( b ) Stump.
( c ) Scion.
( d ) Graft
Ans . ( c ) Scion.
Q.28. The cut part of plant stem which is used in the process of grafting is known is :
( a ) Stock.
( b ) Scion.
( c ) Cutting.
( d ) bad.
Ans :- ( a ) Stock.
Q.29. Multiple fission occurs in one of the following . This is
( a ) Bread mould.
( b ) Kala – azar parasite.
( c ) Flat worm.
( d ) Malaria parasite.
Ans :- ( d ) Malaria parasite.
Q.30. An organism having a whip – like structure at one end which reproduces by the process of binary fission is
( a ) Hydra.
( b ) Paramecium.
( c ) Leishmania.
( d ) Plasmodium.
Ans :- ( c ) Leishmania.
Q.31. A tiny animal having tentacles which reproduces by growing buds on the sides of its body is :
( a ) Planaria.
( b ) Yeast.
( c ) Amoeba.
( d ) Hydra.
Ans :- ( d ) Hydra.
Q.32. An organism which can reproduce by two asexual reproduction methods one similar to the reproduction in Yeast and the other similar to the reproduction in Planaria is :
( a ) Spirogyra.
( b ) Bryophyllum.
( c ) Hydra.
( d ) Sea ane mone.
Ans :- ( c ) Hydra.
Q.33. Stock and scion are induced in the artificial propagation method known as :
( a ) Tissue culture.
( b ) Layering.
( c ) Grafting.
( d ) Cultings.
Ans :- ( c ) Grafting.
Q.34. In a sexual reproduction , two off springs having the same genetic material and the same body features are called :
( a ) Callus.
( b ) Twins.
( c ) Alones.
( d ) Chromosomes.
Ans :- ( c ) Alones.
Q.35. The method of a sexual reproduction in plants in which intre callus is produced is :
( a ) Micropropagation.
( b ) Vegetative propagation.
( c ) Regeneration.
( d ) Fragmentation.
Ans :- ( a ) Micropropagation.
Q.36. The anther contains :
( a ) Sepals.
( b ) Ovules.
( c ) Carpel.
( d ) Pollen grains.
Ans :- ( d ) Pollen grains.
Q.37. Which of the following is not a part of the female reproductive system in human beings ?
( a ) Ovary.
( b ) Uterus.
( c ) Vas deferens.
( d ) Oviducts.
Ans :- ( c ) Vas deferens.
Q.38. One of the following is not a part of human male reproductive system . This is :
( a ) Testis.
( b ) Oviduct.
( c ) Seminal vesicle.
( d ) Prostrate gland.
Ans :- ( b ) Oviduct.
Q.39. Which of the following is not a sexually transmitted disease ?
( a ) Gonorrhoea.
( b ) Hepatitis.
( c ) Syphilis.
( d ) AIDS.
Ans :- ( b ) Hepatitis.
Q.40. Which of the following method of contraception protects a person from acquiring a sexually transmitted disease ?
( a ) Oral pills.
( b ) Condom.
( c ) Copper -T.
( d ) Surgery.
Ans :- ( b ) Condom.
Q.41. In which one of following birth control methods a small portion of oviducts of a woman is removed by surgical operation and the cut ends are ligated ?
( a ) Copper – T.
( b ) Tube ctomy.
( c ) Vasectomy.
( d ) Diaphragm.
Ans :- ( b ) Tube tomy.
Q.42. One of the following is a surgical method which prevents the sperms from reaching the ovum and pregnancy does not occur . This method is :
( a ) IUCD.
( b ) Vasectomy.
( c ) Condom.
( d ) Tubectomy.
Ans :- ( b ) Vasectomy.
Q.43. Fertilisation results immediately in the formation of:
( a ) A zygote.
( b ) An embryo.
( c ) A placenta.
( d ) A foetus.
Ans :- ( a ) A zygote.
Q.44. The sexually transmitted discase which is caused by bacteria is :
( a ) Malaria.
( b ) Diarrhoea.
( c ) Gonorrhoea.
( d ) AIDS.
Ans :- ( c ) Gonorrhoea.
Q.45. AIDS is a deadly disease which is caused by :
( a ) A protozoa.
( b ) A fungus.
( c ) A bacterium.
( d ) A virus.
Ans :- ( d ) A virus.
Q.46. In a flower , the parts that produce male and female gametes are respectively :
( a ) Sepal and anther.
( b ) Filament and stigma.
( c ) Auther and overy.
( d ) Stamen and style.
Ans :- ( c ) Auther and overy.
Q.47. The characteristics transmitted from parents to offspring are present in :
( a ) Cytoplasm.
( b ) Ribosome.
( c ) Golgi bodies.
( d ) Genes.
Ans :- ( d ) Genes.
Q.48. In human males , the testes lie in the scrotum outside the body because it helps in the :
( a ) Process of mating.
( b ) Formation of sperms.
( c ) Easy transfer of sperms.
( d ) All the above.
Ans :- ( b ) Formation of sperms.
Q.49. In human females , an event that indicates the onset of reproductive phase is :
( a ) Growth of body.
( b ) Change in hair pattern.
( c ) Change in voice.
( d ) Menstruation.
Ans :- ( c ) Change in voice.
Q.50. One of the following occurs in the reproductive system of flowering plants as well as that of human . This is –
( a ) Deferens.
( b ) Anther.
( c ) Overy.
( d ) Style
Ans :- ( c ) Overy.
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