RBSE Class 10 Science Chemistry Chapter 7 How Do Organisms Reproduce? MCQs (Objectives) are very important for students preparing for Board Exams. These MCQS have been prepared on the basis of important topics of How Do Organisms Reproduce?
In this post, you will find high- quality, exam oriented MCQs with answers prepared according to the latest RBSE Class 10 Science syllabus. You can solve these MCQs after reading Quick Revision Notes and also solve the questions of the chapter How Do Organisms Reproduce?. Whether you are a student looking for quick revision or a teacher searching for readymade study material, this post is for you.
How Do Organisms Reproduce? Objectives with Answers
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 human.
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, 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, 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 single cell organism and it reproduce 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) brayophyllum
(d)all the above
Correct answer-(c)
13.Vegetative propagation takes place by 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 same flower, it is termed as
(a)cross pollination
(b)fertilization
(c) auto gamy
(d)none
Correct answer-(c)
22.Factors responsible for the rapid spread of bread mould 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 help 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) brayophyllum
(d)all the above
Correct answer-(a)
29.Adventitious buds are present on the stem of
(a) mint
(b)potato
(c) brayophyllum
(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 type 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 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 male reproduction system for 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.Offsrings formed by asexual method of reproduction have greater similarity among themselves because asexual reproduction
(i) does not involve gametes
(ii)is 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 occurs 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 event 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)
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