How do Organisms Reproduce
Class 10th Science Chapter MCQs
How do Organisms Reproduce? Class 10 MCQs Questions
1.
Hydra usually reproduces by:
(a) fragmentation and
budding
(b) regeneration and budding
(c) multiple fission and
fragmentation
(d) regeneration
Answer
Answer: (b) regeneration and budding
2.
Tubectomy is carried out by blocking the
(a) oviduct
(b)
uterus
(c) cervix
(d) vagina
Answer
Answer: (a) oviduct
3.
Variations occur as a result of
(a) asexual
reproduction
(b) vegetative propagation
(c) sexual reproduction
(d)
regeneration
Answer
Answer: (c) sexual reproduction
4.
Fertilisation occurs in human female when the sperms and ovum
reach simultaneously at
(a) fallopian tube
(b) uterus
(c) vagina
(d)
cervix
Answer
Answer: (a) fallopian tube
5. During favourable conditions, Amoeba reproduces by
(a) multiple
fission
(b) binary fission
(c) budding
(d)
fragmentation
Answer
Answer: b
6. A feature of reproduction that is common to Amoeba, Yeast and Spirogyra is
that
(a) they reproduce asexually
(b) they are all unicellular
(c) they
reproduce only sexually
(d) they are all
multicellular
Answer
Answer: a
7. The ability of a cell to divide into several cells during reproduction in
Plasmodium is called
(a) budding
(b) multiple fission
(c) binary
fission
(d) reduction division
Answer
Answer: b
8. Bryophyllum can be propagated vegetatively by the
(a) stem
(b)
leaf
(c) root
(d) flower
Answer
Answer: b
9. Vegetative propagation refers to formation of new plants from
(a) stem,
flowers and fruits
(b) stem, leaves and flowers
(c) stem, roots and
flowers
(d) stem, roots and leaves
Answer
Answer: d
10. In a potato, vegetative propagation takes place by:
(a) root
(b)
leaf
(c) stem tuber
(d) grafting
Answer
Answer: c
11. Vegetatively propagated plants
(a) do not bear roots
(b) do not bear
buds
(c) are genetically similar
(d) are genetically dissimilar
Answer
Answer: c
12. Spirogyra reproduce by
(a) budding
(b) fragmentation
(c)
regeneration
(d) fission
Answer
Answer: b
13. In Rhizopus, tubular thread like structures bearing sporangia at their
tips are called
(a) filaments
(b) hyphae
(c) rhizoids
(d)
roots
Answer
Answer: b
14. Plants like banana, rose, jasmine, orange have lost the capacity to
produce
(a) seeds
(b) buds
(c) flower
(d)
roots
Answer
Answer: a
15. The flower of the Hibiscus plant is
(a) bisexual
(b) unisexual
(c) neuter
(d) very small
Answer
Answer: a
16. The part of the flower which is present in the centre of the flower
is
(a) Sepals
(b) Petals
(c) Carpels
(d)
Stamens
Answer
Answer: c
17. The seed that contains the future plant is called the
(a)
cotyledons
(b) seed coat
(c) germ cells
(d)
embryo
Answer
Answer: d
18. The period of pregnancy is called
(a) gestation period
(b)
incubation period
(c) ovulation
(d) menstruation
period
Answer
Answer: a
19. The process of release of eggs from the ovary is called
(a)
menstruation
(b) reproduction
(c) insemination
(d)
ovulation
Answer
Answer: d
20. The period during adolescence when the reproductive tissues begin to
mature is called
(a) ovyfetion
(b) puberty
(c) germination
(d)
propagation
Answer
Answer: b
21. In human beings, the fertilization occurs in the
(a) uterus
(b)
ovaries
(c) fallopian tubes
(d) vagina
Answer
Answer: c
22. Along the path of the vas-deferens the secretions of which gland provide
nutrition to the sperms?
(a) Prostate glands
(b) Seminal vesicles
(c)
Scrotum
(d) Urinary bladder
Answer
Answer: b
23. The embryo in humans gets nutrition from the mother’s blood with the help
of a special tissue called
(a) Placenta
(b) Villi
(c) Uterus
(d)
Womb
Answer
Answer: a
24. Which among the following diseases is not sexually transmitted?
(a)
Syphyllis
(b) Hepatitis
(c) HIV-AIDS
(d)
Gonorrhea
Answer
Answer: b
25. Which of the following method of contraception protects from acquiring
sexually trans¬mitted diseases?
(a) Surgery
(b) Condoms
(c)
Copper-T
(d) Oral-pills
Answer
Answer: b
26. In human males, the testes lie in the scrotum, because it helps in
the
(a) process of mating
(b) formation of sperms
(c) easy transfer of
gametes
(d) secretion of estrogen
Answer
Answer: b
27.
AIDS is a sexually transmitted disease caused due to an
infection by a
(a) bacteria
(b) protozoa
(c) virus
(d)
Plasmodium
Answer
Answer: (c) virus
28.
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), (iii) and (iv)
(c) (i) and (iv)
(d) (ii), (iii) and (iv)
Answer
Answer: (b) (i), (iii) and (iv)
29.
Which of the following is the correct sequence of events of
sexual reproduction in a flower?
(а) pollination, fertilisation, seedling,
embryo
(b) seedling, embryo, fertilisation, pollination
(c) pollination,
fertilisation, embryo, seedling
(d) embryo, seedling, pollination,
fertilisation
Answer
Answer: (c) pollination, fertilisation, embryo, seedling
30.
Offspring formed by asexual method of reproduction have
greater similarity among themselves because
(i) asexual reproduction involves
only one parent
(ii) asexual reproduction does not involve gametes
(iii)
asexual reproduction occurs before sexual reproduction
(iv) asexual
reproduction occurs after sexual reproduction
(a) (i) and (ii)
(b) (i) and
(iii)
(c) (ii) and (iv)
(d) (iii) and (iv)
Answer
Answer: (a) (i) and (ii)
31.
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
Answer
Answer: (c) both similarities and variations with parents
32.
In Spirogyra, asexual reproduction takes place by
(a)
breaking up of filaments 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.
Answer
Answer: (a) breaking up of filaments into smaller bits
33.
The ability of a cell to divide into several cells during
reproduction in Plasmodium is called
(a) budding
(b) reduction
division
(c) binary fission
(d) multiple
fission
Answer
Answer: (d) multiple fission
34.
The correct sequence of reproductive stages seen in flowering
plants is
(а) gametes, zygote, embryo, seedling
(b) zygote, gametes,
embryo, seedling
(c) seedling, embryo, zygote, gametes
(d) gametes,
embryo, zygote, seedling
Answer
Answer: (а) gametes, zygote, embryo, seedling
35.
The number of chromosomes in parents and offsprings of a
particular species remains constant due to
(a) doubling of chromosomes after
zygote formation
(b) halving of chromosomes during gamete formation
(c)
doubling of chromosomes after gamete formation
(d) halving of chromosomes
after gamete formation
Answer
Answer: (b) halving of chromosomes during gamete formation
36.
Factors responsible for the rapid spread of bread mould on
slices of bread are
(i) large number of spores
(ii) availability of
moisture and nutrients in 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)
Answer
Answer: (c) (i) and (ii)
37.
Length of pollen tube depends on the distance between
(a)
pollen grain and upper surface of stigma
(b) pollen grain on upper surface of
stigma and ovule
(c) pollen grain in anther and upper surface of stigma
(d) upper surface of stigma and lower part of style
Answer
Answer: (b) pollen grain on upper surface of stigma and ovule
38.
Which of the following statements are true for flowers?
(i) Flowers are always bisexual
(ii) They are the sexual reproductive
organs
(iii) They are produced in all groups of plants
(iv) After
fertilisation they give rise to fruits
(a) (i) and (iv)
(b) (ii) and
(iii)
(c) (i) and (iii)
(d) (ii) and (iv)
Answer
Answer: (d) (ii) and (iv)
39.
Which among the following statements are true for unisexual
flowers?
(i) They possess both stamen and pistil
(ii) They possess either
stamen or pistil
(iii) They exhibit cross pollination
(iv) Unisexual
flowers possessing only stamens cannot produce fruits
(a) (i) and (iv)
(b)
(ii), (iii) and (iv)
(c) (iii) and (iv)
(d) (i), (iii) and
(iv)
Answer
Answer: (b) (ii), (iii) and (iv)
40.
Which among the following diseases is not sexually
transmitted?
(a) Syphillis
(b) Hepatitis
(c) HIV – AIDS
(d)
Gonorrhoea
Answer
Answer: (b) Hepatitis
41.
In human males, the testes lie in the scrotum, because it
helps in the
(a) process of mating
(b) formation of sperm
(c) easy
transfer of gametes
(d) all the above
Answer
Answer: (b) formation of sperm
42.
In following Figure, the parts A, B and C are
sequentially
(a) cotyledon, plumule and radicle
(b) plumule, radicle and cotyledon
(c)
plumule, cotyledon and radicle
(d) radicle, cotyledon and
plumule
Answer
Answer: (c) plumule, cotyledon and radicle
43.
Reproduction is essential for living organisms in order
to
(a) keep the individual organism alive
(b) fulfill their energy
requirement
(c) maintain growth
(d) continue the species generation after
generation
Answer
Answer: (d) continue the species generation after generation
44.
During adolescence, several changes occur in the human body.
Mark one change associated with sexual maturation in boys
(a) loss of milk
teeth
(b) increase in height
(c) cracking of voice
(d) weight
gain
Answer
Answer: (c) cracking of voice
45.
Offspring formed as a result of sexual reproduction exhibit
more variations because
(a) sexual reproduction is a lengthy process
(b)
genetic material comes from two parents of the same species
(c) genetic
material comes from two parents of different species
(d) genetic material
comes from many parents
Answer
Answer: (b) genetic material comes from two parents of the same species