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?
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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) bryophyllum
(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 berad 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) 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
orgas
(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)divison 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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