Chapter 8 · How do Organisms Reproduce?

NCERT Exemplar Class 10 Science Chapter 8 Multiple Choice Questions

All 27 questions of NCERT Exemplar Class 10 Science Chapter 8 Multiple Choice Questions (How do Organisms Reproduce?), in the book's order, each with its answer and a step-by-step solution.

1. Q1
   In ​the list of ​organisms given below, those ​that reproduce by ​the asexual ​method are

   1. (i)banana
   2. (ii)​dog
   3. (iii)​yeast
   4. (iv)Amoeba

   1. (a)(ii) and (iv)
   2. (b)(i), (iii) and (iv)
   3. (c)(i) and (iv)
   4. (d)(ii), (iii) and (iv)
   Show answer

   (b) (i), (iii) and (iv)

   Step-by-step solution →
2. Q2
   In ​a flower, ​the parts ​that ​produce ​male ​and ​female gametes (germ cells) are

   1. (a)stamen and anther
   2. (b)filament and stigma
   3. (c)anther and ovary
   4. (d)stamen and style
   Show answer

   (c) anther and ovary

   Step-by-step solution →
3. Q3
   Which of ​the ​following is the ​correct sequence of events ​of sexual reproduction ​in a flower?

   1. (a)pollination, fertilisation, seedling, embryo
   2. (b)seedling, embryo, fertilisation, pollination
   3. (c)pollination, fertilisation, embryo, seedling
   4. (d)embryo, seedling, pollination, fertilisation
   Show answer

   (c) pollination, fertilisation, embryo, seedling

   Step-by-step solution →
4. Q4
   Offspring formed by asexual method ​of reproduction have ​greater similarity among themselves because

   1. (i)asexual reproduction ​involves only one ​parent
   2. (ii)​asexual ​reproduction does not involve gametes
   3. (iii)asexual reproduction occurs before sexual reproduction
   4. (iv)asexual ​reproduction occurs after sexual reproduction

   1. (a)(i) and (ii)
   2. (b)(i) and (iii)
   3. (c)(ii) and (iv)
   4. (d)(iii) and (iv)
   Show answer

   (a) (i) and (ii)

   Step-by-step solution →
5. Q5
   Characters ​transmitted from ​parents ​to offspring are present ​in

   1. (a)cytoplasm
   2. (b)ribosome
   3. (c)golgi bodies
   4. (d)genes
   Show answer

   (d) genes

   Step-by-step solution →
6. Q6
   Characters that ​are ​transmitted ​from ​parents ​to offspring ​during ​reproduction ​show

   1. (a)only similarities with parents
   2. (b)only variations with parents
   3. (c)both similarities and variations with parents
   4. (d)neither similarities nor variations
   Show answer

   (c) both similarities and variations with parents

   Step-by-step solution →
7. Q7
   A feature of reproduction that ​is ​common to Amoeba, ​Spirogyra and Yeast ​is that

   1. (a)they reproduce asexually
   2. (b)they are all unicellular
   3. (c)they reproduce only sexually
   4. (d)they are all multicellular
   Show answer

   (a) they reproduce asexually

   Step-by-step solution →
8. Q8
   In ​Spirogyra, ​asexual reproduction ​takes ​place ​by

   1. (a)breaking up of filaments into smaller bits
   2. (b)division of a cell into two cells
   3. (c)division of a cell into many cells
   4. (d)formation of young cells from older cells.
   Show answer

   (a) breaking up of filaments into smaller bits

   Step-by-step solution →
9. Q9
   The ​ability of ​a cell ​to divide ​into ​several ​cells ​during reproduction in Plasmodium is called

   1. (a)budding
   2. (b)reduction division
   3. (c)binary fission
   4. (d)multiple fission
   Show answer

   (d) multiple fission

   Step-by-step solution →
10. Q10
    The ​correct ​sequence ​of ​reproductive ​stages seen ​in flowering plants ​is

    1. (a)gametes, zygote, embryo, seedling
    2. (b)zygote, gametes, embryo, seedling
    3. (c)seedling, embryo, zygote, gametes
    4. (d)gametes, embryo, zygote, seedling
    Show answer

    (a) gametes, zygote, embryo, seedling

    Step-by-step solution →
11. Q11
    The ​number ​of chromosomes ​in parents and ​offsprings ​of a particular species remains constant due to

    1. (a)doubling of chromosomes after zygote formation
    2. (b)halving of chromosomes during gamete formation
    3. (c)doubling of chromosomes after gamete formation
    4. (d)halving of chromosomes after gamete formation
    Show answer

    (b) halving of chromosomes during gamete formation

    Step-by-step solution →
12. Q12
    In ​Rhizopus, ​tubular ​thread-like structures ​bearing ​sporangia ​at their tips ​are called

    1. (a)filaments
    2. (b)hyphae
    3. (c)rhizoids
    4. (d)roots
    Show answer

    (b) hyphae

    Step-by-step solution →
13. Q13
    Vegetative ​propagation ​refers ​to ​formation of new ​plants ​from

    1. (a)stem, roots and flowers
    2. (b)stem, roots and leaves
    3. (c)stem, flowers and fruits
    4. (d)stem, leaves and flowers
    Show answer

    (b) stem, roots and leaves

    Step-by-step solution →
14. Q14
    Factors responsible ​for the rapid ​spread of bread mould ​on slices of bread are

    1. (i)large number of spores
    2. (ii)availability of moisture and nutrients in bread
    3. (iii)​presence of tubular ​branched hyphae
    4. (iv)formation of round ​shaped ​sporangia

    1. (a)(i) and (iii)
    2. (b)(ii) and iv)
    3. (c)(i) and (ii)
    4. (d)(iii) and (iv)
    Show answer

    (c) (i) and (ii)

    Step-by-step solution →
15. Q15
    Length ​of ​pollen ​tube ​depends ​on ​the distance ​between

    1. (a)pollen grain and upper surface of stigma
    2. (b)pollen grain on upper surface of stigma and ovule
    3. (c)pollen grain in anther and upper surface of stigma
    4. (d)upper surface of stigma and lower part of style
    Show answer

    (b) pollen grain on upper surface of stigma and ovule

    Step-by-step solution →
16. Q16
    Which of the following statements are true for flowers?

    1. (i)Flowers are ​always bisexual
    2. (ii)They are the sexual reproductive organs
    3. (iii)They are produced in all groups ​of plants
    4. (iv)​After fertilisation they ​give ​rise ​to fruits

    1. (a)(i) and (iv)
    2. (b)(ii) and (iii)
    3. (c)(i) and (iii)
    4. (d)(ii) and (iv)
    Show answer

    (d) (ii) and (iv)

    Step-by-step solution →
17. Q17
    Which among the following statements are ​true ​for unisexual flowers?

    1. (i)​They ​possess ​both stamen and ​pistil
    2. (ii)They possess either stamen or pistil
    3. (iii)​They exhibit cross pollination
    4. (iv)​Unisexual flowers possessing only stamens cannot produce fruits

    1. (a)(i) and (iv)
    2. (b)(ii), (iii) and (iv)
    3. (c)(iii) and (iv)
    4. (d)(i), (iii) and (iv)
    Show answer

    (b) (ii), (iii) and (iv)

    Step-by-step solution →
18. Q18
    Which among the following ​statements ​are ​true for sexual reproduction in flowering ​plants?

    1. (i)It requires ​two ​types of gametes
    2. (ii)​Fertilisation is a compulsory event
    3. (iii)It ​always results in formation of zygote
    4. (iv)Offspring formed are clones

    1. (a)(i) and (iv)
    2. (b)(i), (ii) and (iv)
    3. (c)(i), (ii) and (iii)
    4. (d)(i), (ii) and (iv)
    Show answer

    (c) (i), (ii) and (iii)

    Step-by-step solution →
19. Q19
    In Figure 8.1, the parts ​A, ​B ​and ​C are ​sequentially

    1. (a)cotyledon, plumule and radicle
    2. (b)plumule, radicle and cotyledon
    3. (c)plumule, cotyledon and radicle
    4. (d)radicle, cotyledon and plumule
    Show answer

    (c) plumule, cotyledon and radicle

    Step-by-step solution →
20. Q20
    Offspring ​formed as a result ​of ​sexual reproduction ​exhibit more ​variations ​because

    1. (a)sexual reproduction is a lengthy process
    2. (b)genetic material comes from two parents of the same species
    3. (c)genetic material comes from two parents of different species
    4. (d)genetic material comes from many parents
    Show answer

    (b) genetic material comes from two parents of the same species

    Step-by-step solution →
21. Q21
    Reproduction is essential ​for ​living ​organisms in ​order to

    1. (a)keep the individual organism alive
    2. (b)fulfill their energy requirement
    3. (c)maintain growth
    4. (d)continue the species generation after generation
    Show answer

    (d) continue the species generation after generation

    Step-by-step solution →
22. Q22
    During adolescence, several changes ​occur ​in the ​human body. ​Mark ​one change associated with sexual maturation ​in boys

    1. (a)loss of milk teeth
    2. (b)increase in height
    3. (c)cracking of voice
    4. (d)weight gain
    Show answer

    (c) cracking of voice

    Step-by-step solution →
23. Q23
    In human ​females, an ​event that reflects onset ​of ​reproductive ​phase ​is

    1. (a)growth of body
    2. (b)changes in hair pattern
    3. (c)change in voice
    4. (d)menstruation
    Show answer

    (d) menstruation

    Step-by-step solution →
24. Q24
    In ​human ​males, the testes lie ​in the ​scrotum, because ​it helps ​in the

    1. (a)process of mating
    2. (b)formation of sperm
    3. (c)easy transfer of gametes
    4. (d)all the above
    Show answer

    (b) formation of sperm

    Step-by-step solution →
25. Q25
    Which among ​the following is not ​the function of testes ​at puberty?

    1. (i)formation of germ cells
    2. (ii)​secretion ​of testosterone
    3. (iii)development of ​placenta
    4. (iv)secretion ​of ​estrogen

    1. (a)(i) and (ii)
    2. (b)(ii) and (iii)
    3. (c)(iii) and (iv)
    4. (d)(i) and (iv)
    Show answer

    (c) (iii) and (iv)

    Step-by-step solution →
26. Q26
    The ​correct ​sequence ​of ​organs in the male reproductive system for transport ​of sperms is

    1. (a)testis → vasdeferens → urethra
    2. (b)testis → ureter → urethra
    3. (c)testis → urethra → ureter
    4. (d)testis → vasdeferens → ureter
    Show answer

    (a) testis → vasdeferens → urethra

    Step-by-step solution →
27. Q27
    Which ​among ​the ​following ​diseases is not sexually ​transmitted?

    1. (a)Syphillis
    2. (b)Hepatitis
    3. (c)HIV - AIDS
    4. (d)Gonorrhoea
    Show answer

    (b) Hepatitis

    Step-by-step solution →