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Friday, November 12, 2021

How Do Organisms Reproduce Class 10 MCQ PDF

You will be able to get How Do Organisms Reproduce Class 10 MCQ PDF. These MCQs are prepared on the basis of the CBSE syllabus for Class 10 Science for Academic session 2021-22. These MCQ questions are based on NCERT Solutions for class 10 science chapter 8 How do organisms Reproduce.

As you all know in the First Term exam, all questions will be Multiple Choice Questions so given questions will be very helpful to you.

 

How Do Organisms Reproduce Class 10 MCQ Online Test

How Do Organisms Reproduce Class 10 MCQ PDF
How Do Organisms Reproduce Class 10 MCQ PDF


Here you can test yourself and practice all the questions are given in this article. These MCQ questions have been prepared on the basis of the NCERT Science book of Class 10

For detailed and thorough study you can also, check NCERT Solution of Class 10 Science Chapter 8 How Do Organisms Reproduce.

 

Chapter 8 - How Do Organisms Reproduce?

 

Choose the correct answer:

 

1. Development of a plant from any vegetative part is

(a) reproduction          

(b)vegetative propagation

(c) cell-division                             

(d)respiration

Correct answer-(b)

Explanation- Vegetative propagation is the method by which a new plant develops from leaves, stems, roots, or branches naturally. But it can be practiced also by humans.

 

2. Which is an incorrect statement

(a) In plants growth takes place throughout the life

(b) Cambium tissue is present in animals

(c) In animals growth is uniform in all the parts

(d) In plants growth is restricted to certain parts only

Correct answer-(b)

Explanation- Cambium is a plant tissue.

 

3. Asexual reproduction by fragmentation takes place in

(a) amoeba                            

(b)yeast

(c) spirogyra                                   

(d)moss

Correct answer-( C)

 

 

4. For growth, an essential process is

(a) sexual reproduction                 

(b)vegetative propagation

(c) asexual reproduction               

(d)respiration

Correct answer-(c)

 

 

5. Fusion of male and female gametes is termed as

(a) reproduction                   

(b)vegetative propagation

(c) cell-division                             

(d)respiration

Correct answer-(a)

Explanation- In sexual reproduction, a fusion of male gametes and female gametes takes place.

 

6. Asexual reproduction by spore formation takes place in

(a) amoeba                                     

(b)yeast

(c) spirogyra                                   

(d)moss

Correct answer-(d)

 

7. Asexual reproduction by budding takes place in

(a) amoeba                                     

(b) spirogyra

(c) yeast                                 

(d)moss

Correct answer-(c)

 

 

8. Asexual reproduction by binary fission takes place in

(a) amoeba                                     

(b)yeast

(c) spirogyra                                   

(d)moss

Correct answer-(a)

Explanation- Amoeba is a single-cell organism and it reproduces by binary fission in which on maturation it divides into two daughter cells.

 

9. In hydra asexual reproduction takes place by

(a) fragmentation                           

(b)budding

(c) binary fission                           

(d)spore-formation

Correct answer-(b)

 

 

10. In mucor asexual reproduction takes place by

(a) fragmentation                           

(b)budding

(c) binary fission                           

(d)spore-formation

Correct answer-(d)

 

 

11. Vegetative propagation is possible by

(a) root                                            

(b)stem

(c) leaves                              

(d)all the above

Correct answer-(d)

Explanation- Vegetative propagation is done by vegetative body parts ie- stem, roots, leaves.

 

 

12. Vegetative propagation takes place by leaves in

(a) mint                                           

(b)potato

(c) bryophyllum                                      

(d)all the above

Correct answer-(c)

 

 

13. Vegetative propagation takes place by the stem in

(a) sugarcane                                  

(b)turmeric

(c) ginger                              

(d)all the above

Correct answer-(d)

 

 

14. Plants of desired qualities are produced by 

(a) cutting                             

(b)grafting

(c) layering                                     

(d)any one of (a), (b), and (c)

Correct answer-(b)

 

 

15. Begonia reproduces vegetatively by

(a) leaf bud                                     

(b)adventitious bud

(c) vegetative bud                          

(d)marginal bud

Correct answer-(a)

 

 

16. In sweet potato vegetative propagation takes place by

(a) root                                            

(b)stem

(c) bryophyllum                             

(d)all the above

Correct answer-(a)

 

 

17. In grafting the plant rooted in the soil is called

(a) callus                                         

(b)stock

(c) scion                                          

(d)sucker

Correct answer-(b)

 

 

18. The group of stamens is called

(a) corolla                             

(b)calyx

(c) ovary                                         

(d)androecium

Correct answer-(d)

 

19. Pollen grains are produced by

(a) corolla                             

(b)anther

(c) ovary                                         

(d)ovule

Correct answer-(b)

 

20. The transfer of pollen grains from anther to stigma is called

(a) fertilization                               

(b)double fertilization

(c) ovulation                                  

(d)pollination

Correct answer-(d)

 

 

21. When the pollen grains are received by the stigma of the same flower, it is termed as

(a)cross-pollination                       

(b)fertilization

(c) autogamy                                 

(d)none

Correct answer-(c)

 

22. Factors responsible for the rapid spread of bread mold on slice of bread are

(i)large numbers of spores

(ii) availability of moisture, nutrients in the bread

(iii )presence of tubular branched hyphae

(iv)formation of round shaped sporangia

(a)(i) and (iii)

(b)(ii) and (iv)

(c )(i) and (ii)

(d)(iii) and (iv)

Correct answer-(c)

 

 

23. In human males, the testes lie in the scrotum, because it helps in

(a)process of mating

(b)formation of sperm

(c )easy transfer of gamete

(d)all the above

Correct answer-(b)

 

 

24. Pollen tube at the time of entering into ovule has

(a) one gamete                               

(b)two male gametes

(c) three male gametes                  

(d)none

Correct answer-(b)

 

 

25. Secondary sexual character in man is

(a) breast                               

(b)ovary 

(c) thyroid                             

(d)gonads

Correct answer-(d)

 

 

26. Vivipary is found in

(a) kangaroo                                   

(b)frog

(c) ostrich                             

(d)snake

Correct answer-(a)

 

 

27. In human beings female sex organs are matured at the age of

(a) 12 to 13 years                           

(b)15 to 18 years

(c) 10 to 12 years                           

(d)18 to 23 years

Correct answer-(a)

 

 

28. Adventitious buds are present on the roots of

(a) mint                                           

(b)potato

(c) bryophyllum                                      

(d)all the above

Correct answer-(a)

 

 

29. Adventitious buds are present on the stem of

(a) mint                                           

(b)potato

(c) bryophyllum                                      

(d)all the above

Correct answer-(b)

 

 

30. In human beings male sex organs are matured at the age of

(a) 12 to 13 years                           

(b)15 to 18 years

(c)10 to 12 years                            

(d)18 to 23 years

Correct answer-(b)

 

 

31. Sperms are produced in

(a) scrotum                                     

(b)testes

(c) penis                                          

(d)seminal vesicle

Correct answer-(b)

 

 

32. Ova are produced in

(a) vagina                              

(b)uterus

(c) clitoris                             

(d)ovary

Correct answer-(d)

 

 

 

33. The arrest of reproductive capacity in 45-50-year-old women is called

(a) puberty                                      

(b)gestation

(c) menstruation                            

(d)menopause

Correct answer-(d)

 

 

34. Rupturing of ovarian follicle and discharge of ovum is called

(a) conjugation                               

(b)fertilization

(c) ovulation                         

(d)copulation

Correct answer-(c)

 

 

35. Fertilization of ovum in human beings takes place in

(a) vagina                              

(b)ovary

(c)fallopian tube                            

(d)uterus

Correct answer-(c)

 

 

36. Characters transmitted from parents in

(a)ribosome                                    

(b)golgi bodies

(c) cytoplasm                                 

(d)genes

Correct answer-(d)

 

 

37. Sporangia bearing thread-like structures in Rhizopus are called

(a) roots                                          

(b)rhizoids

(c) hyphae                                      

(d)filaments

Correct answer-(c)

 

 

38. The correct statements about flowers are, flowers

(i) are the reproductive organs                 

(ii)are bisexual always

(iii) are produced in all types of plants

(iv)give rise to fruits after fertilization

(a)(i) and (ii)                                  

 (b)(ii) and (iii)

(c)(iii) and (iv)                                 

(d) (ii) and (iv)

Correct answer-(c)

 

 

39. The correct statements about sexual reproduction are

(i) sexual reproduction requires two types of gametes              

(ii) fusion of two types of gametes is essential

(iii) fusion results in zygote formation

(iv)offsprings produced are clones

(a) (i), (ii)  and (iii)                        

 (b) (ii), (iii) and (iv)

(c) (i), (iii) and (iv)                          

(d) (i), (ii) and (iv)

Correct answer-(a)

 

 

40. The main change in boys shows their sexual maturation

(a) loss of milk teeth                     

(b)weight gain

(c) cracking of voice                     

(d)increase in height

Correct answer-(c)

 

 

41. In human females, an event that reflects the onset of the reproductive phase, is

(a)weight gain                                

(b)changes in voice

(c) changes in hair pattern            

(d)menstruation

Correct answer-(d)

 

 

42. The correct sequence of organs in the male reproduction system for the transport of sperms is

(a)testis → ureter → urethra                  

(b)testis → urethra → ureter

 (c)testis → vasdeferense → urethra     

(d)testis → vasdeferense → ureter

Correct answer-(c)

 

43. Ovulation takes place after

(a) 6-10 days of menstruation                

(b)10-12 days of menstruation

(c) 20-22 days of menstruation              

(d)22-24 days of menstruation

Correct answer-(b)

 

 

44. Menstruation period is completed in

(a) 14 days                                      

(b)28 days

(c) 35 days                                      

(d)42 days

Correct answer-(b)

 

 

45. Offerings formed by asexual method of reproduction have greater similarity among themselves because asexual reproduction

(i) does not involve gametes                  

(ii)is a simple method of reproduction 

(iii) involves only one parent                 

(iv)occurs before sexual reproduction

(a)(i) and (iii)                                 

 (b) (i) and (iii)

(c) (i) and (iv)                                

 (d) (ii) and (iv)

Correct answer-(b)

 

 

46. DNA copying  is essential for

(a) variation                                    

(b)asexual mode of reproduction

(c) combination of gametes          

(d)all the above

Correct answer-(a)

Explanation- Variations occur in species due to DNA copying.

 

47. Reproduction is essential for living organisms in order to

(a) fulfill their biotic requirement         

(b)keep the organism fit and healthy

(c) maintain growth                       

(d)continue the species generation after generation

Correct answer-(d)

 

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

(i)banana

(ii)dog

(iii)yeast

(iv)amoeba

(a) (ii) and (iv)

(b)  (i),(ii) and (iv)

(c)  (i) and(iv)

(d) (ii),(iii) and(iv)

Correct answer-(d)

 

49. In a flower, the part that produces gametes are

(a)stamen and anther

(b)filament and stigma

(c )anther and ovary

(d) stamen and style

Correct answer-(c)

 

 

50. Which of the following is the correct sequence of events of sexual reproduction in a flower

(a)pollination,fertilization,seedling,embryo

(b) seedling,embryo,fertililsation,pollination

(c ) pollination,fertilization, embryo, seedling

(d)embryo,seedling,pollination,fertilization

Correct answer-(c)

 

 

51. Characters that are transmitted from parents to offspring during reproduction show

(a)only similarities  with parents

(b)only variations with parents

(c ) both similarities and variations with parents

(d)neither similarities nor variations

Correct answer-(c)

 

 

52. In spirogyra, asexual reproduction takes place by

(a)breaking up of filament into smaller bits

(b)division of a cell into two cells

(c)division of a cell into many cells

(d)formation of young cells from older cells

Correct answer-(a)

 

 

 

53. Which among the following diseases is not sexually transmitted

(a)Syphilis

(b)hepatitis

(c ) HIV-AIDS

(d)gonorrhea

Correct answer-(b)

 

How Do Organisms Reproduce Class 10 Fill in the Blanks

Here you are provided with Important Class 10 Science Chapter 8 fill-in blanks which are also very useful in the context of new pattern of CBSE Class Board Exams 2021-22. These fill in blanks are very useful to you.

How Do Organisms Reproduce fill in the blanks

 

1. The process in which any vegetative part of plant develops into a new plant, is called .................... propagation.


2. In .................... vegetative propagation occurs by leaves.


3. To obtain good quality fruits from a poor quality mango tree, .................... is used.


4.................... is used in sugar-cane and rose.


5. By the fusion of male and female gametes, .................... is formed.


6. If an individual produces only sperms, it is ....................


7. An individual having testes and ovaries is called ....................


8..................... and .................... are tied together during grafting.


9..................... is the reproductive part of plant.


10. In .................... reproductive part is flower.


11. The process of producing a new generation takes place through ....................


12. The process of asexual reproduction in amoeba is ....................


13. Budding is a common method of asexual reproduction in yeast and ....................

 

14. In plants male gamete is termed as ....................


15. Eggs are produced in ....................


16. The unorganized mass of tissue formed during tissue culture is called ....................


17. Frog is .................... but .................... is viviparous.


18. Reproductive organs in male human beings become functional at the age of .................... years.


19. Release of an egg from ovary is called ....................


20. Ovulation takes place .................... days after the start of menstruation.


21. Fertilization is, marked by the ....................  of menstrual flow.


22. A tissue develops between the uterine wall and the embryo, it is called ....................


23. The average duration of human pregnancy is .................... days.


24. Frequent pregnancies have an .................... effect on the health of the mother.


25..................... is an intrauterine contraceptive device.


26. Removal of a small portion of ....................is called vasectomy.


27. Surgically when fallopian tube is removed or ligated, it is called ....................


28. Gonorrhea, .................... and AIDS  are sexually transmitted diseases (STDs).


29. HIV is the causative agent for ....................


30. The common symptom of ....................is the burning sensation at urination and urethral discharge.


31. Ovulation in female human beings takes place after a period of .................... days.


32. Egg reaches the uterus on .................... day after menstruation. 


33. Ovulation in female human beings stops after the age of ....................


34. After, pregnancy, menstruation, and ovulation ....................


35. Sperm or ovum is a .................... cell because it contains half number of chromosomes.


36. Organisms of a species look similar because their .................... are similar.


37. Copy of DNA in a new-formed cell is not .................... to the copy of     DNA in the original cell.


38. Variations occur due to .................... in copying the DNA.


39. The transference of pollen grains from the anther to the stigma is called ..................


40. Pollen tube contains .................... male ....................


41. After fertilization, the ovary develops into .................... in plants.


42..................... fertilization takes place in frogs.


43..................... fertilization takes place in man.

 

44.    Variation during reproduction is the basis of ....................


45.    Hormone testosterone is secreted by ....................


46.    In Leishmania binary fission takes place in a definite ....................


47.    Regeneration can take place in hydra and ....................


48.    In bread mould reproduction takes place by ....................


49.    DNA copying mechanisms are not absolutely ....................


50.    Prenatal sex determination is .................... by law.


I hope this article is very helpful and you can secure good marks in your Board exams. You can download Pdf free and to better understand you can videos on the same topic on the YouTube channel.


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