CBSE Class 10 Biology How do Organisms Reproduce MCQs Set F

Question. ___________ is the portion on which grafting is done and it provides the roots?
(a) Stock
(b) Scion
(c) Both (a) and (b)
(d) None of these

Answer: A

Question. Which one of the options is incorrect?
Vegetative propagation is practised because
(a) Plants which produce non viable seeds can be grown.
(b) It is a easier method than sowing seeds.
(c) Such plants produce seeds and fruits much earlier than other methods
(d) For obtaining better species of plants.

Answer: C

Question. The process of the transfer of pollen grains from the flower of one plant to the stigma of the flower of another plant of the same species is known as
(a) Cross pollination
(b) Fertilisation
(c) Self pollination
(d) None of the options

Answer: A

Question. What is the puberty age in human males?
(a) 8-10
(b) 10-12
(c) 12-14
(d) 14-16

Answer: C

Question. Which of these is not the function of the seminal vesicles present in human males?
(a) To covert the sperms in a fluid medium.
(b) To provide nutrition.
(c) To make their transport easier.
(d) To make them sticky.

Answer: D

Question. In which of the following plant bud in notches of leaves help in its propagation?
(a) Radish
(b) Bryophyllum
(c) Bougainvillea
(d) Jasmine

Answer: B

Question. Vegetative propagation in potato takes place through
(a) Stem
(b) Root
(c) Leaves
(d) Seed

Answer: A

Question.Which of these life processes of an organism helps in the growth of its population?
(a) Nutrition
(b) Respiration
(c) Reproduction
(d) Excretion

Answer: C

Question.The number of chromosomes in parents and offspring 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: B

Question.In a flower, the parts that produce male and female gametes are——–
(a) stamen and anther
(b) Filament and stigma
(c) Anther and ovary
(d) stamen and style

Answer: C

Question.In the list of organisms given below, those that does not reproduce by the asexual method are————
(a) Spirogyra
(b) dog
(c) yeast
(d) amoeba

Answer: B

Question.Which of these is not a part of male reproductive system?
(a) Scrotum
(b) Oviduct
(c) Vas-deferens
(d) Prostrate gland

Answer: B

Question. Why are the testes located outside the abdominal cavity in scrotum?
(a) Because sperm formation requires more spaces.
(b) Because sperm formation requires a lower temperature.
(c) Because sperm formation requires a higher temperature.
(d) None of the options

Answer: B

Question. The two oviducts in a human female unite into an elastic bag like structure known as
(a) Vagina
(b) Uterus
(c) Fallopian tube
(d) Cervix

Answer: B

Question. The process where the unfertilised egg is released out of the body with the blood used to nourish the embryo is known as
(a) Menstruation
(b) Fertilisation
(c) Germination
(d) Pollination

Answer: A

Question. Unisexual flowers contain
(a) Both stamen and carpel
(b) Only stamen
(c) Only carpel
(d) Either stamen or carpel

Answer: D

Question. The process in which the cytoplasm of a single eukaryotic cell is divided to form two daughter cells is known as?
(a) Karyokinesis
(b) Cytokinesis
(c) Meiosis
(d) Mitosis

Answer: D

Question. What is the surgical method of contraception in female and male respectively?
(a) Tubectomy and Vasectomy
(b) Vasectomy and Copper-T
(c) Tubectomy and Copper-T
(d) None of these

Answer: A

Question.The process of development of seedling from an embryo under suitable condition is called
(a) Regeneration
(b) Pollination
(c) Germination
(d) Dormancy

Answer: C

Question. Hydra reproduces————-by—————
(a) sexually, budding
(b) sexually, regeneration
(c) asexually, budding
(d) asexually, regeneration

Answer: C

Question.Which of these is a disadvantage of vegetative reproduction?
(a) Offspring are genetically identical
(b) It is rapid and economical method of reproduction
(c) It produces seedless fruits
(d) Disease of parent plant gets transferred to the offspring.

Answer: D

Question.When an organism breaks into a number of parts and each part develop into an individual, it is called:
(a) Regeneration
(b) Budding
(c) Binary fission
(d) Spore formation

Answer: A

Question. How many chromosomes are present in a ovum of human being?
(a) 29
(b) 21
(c) 22
(d) 23

Answer: D

Question: In Rhizopus, tubular thread-like structures bearing sporangia at their tips are called:
a) Filaments
b) Hyphae
c) Rhizoids
d) Roots
Answer: b

Question: Organism produced from two parents is an example of:
a) Asexual reproduction
b) Sexual reproduction
c) Binary fission
d) Evolution
Answer: b

Question: Fertilisation occurs in human female when the sperms and ovum reach simultaneously at
a) Fallopian tube
b) Uterus
c) Vagina
d) Cervix
Answer: a

Question: A student observes the following stage of binary fission in Amoeba in a focused slide under a microscope. Select the correct observation in this regard. (Image 173)
a) First stage of binary fission
b) Final stage of binary fission
c) That stage of binary fission in which the cytoplasm divides but the nucleus does not
d) That stage of binary fission in which the nucleus divides but the cytoplasm does not
Answer: a

Question: oviparous are the ones who _____
a) Produce eggs
b) Produce young ones
c) Both a and b
d) None
Answer: a

Question: 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: b

Question: In tissue culture method a small piece of tissue grows and forms:
a) Callus
b) Monocytes
c) Synaps
d) Homeostasis
Answer: a

Question: The process of the division of cell into several cells during reproduction in Plasmodium is termed as:
a) Fragmentation
b) Budding
c) Multiple fission
d) Binary fission
Answer: c

Question: Characters transmitted from parents to offspring are present in:
a) Cytoplasm
b) Ribosome
c) Golgi bodies
d) Genes
Answer: d

Question: In human males, the testes lie in the scrotum, because it helps in the:
a) Easy transfer of gametes
b) Process of mating
c) Formation of sperm
d) All of these
Answer: c

Question: Diploid state is denoted as
a) n
b) 3n
c) n2
d) 2n
Answer: d

Question: Which of the following is not the part of female reproductive system?
a) Ovary
b) Fallopian tube
c) Uterus
d) Vas deferens
Answer: d

Question: Male reproductive system consists of
a) Testis
b) Seminal vesicle
c) Vas deferens
d) Prostate gland
e) All four
Answer: e

Question: 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: c

Question: In figure, the parts A, B and C are sequentially: (Image 176)
a) Cotyledon, plumule and radicle
b) Plumule, radicle and cotyledon
c) Plumule, cotyledon and radicle
d) Radicle, cotyledon and plumule
Answer: c

Question: Reproduction is essential for living organisms to order to:
(a) Keep the individual organism alive
(b) Fulfill their energy requirements
(c) Maintain growth
(d) Continue the species generation after generation
Answer: d

Question: Semen which contains millions of sperms also contains secretions of seminal vesicle and prostrate gland (accessory glands). It makes the tranport of sperms easier and provide nutrition to sperms.
Correct sequence of organs in the male reproductive system for transport of sperms is:
(a) Testis → vas deferens → urethra
(b) Testis → ureter → urethra
(c) Testis → urethra → ureter
(d) Testis → vas deferens → ureter
Answer: a

Question: The rapid spreading of bread mould on slices of bread are due to:
(i) Presence of large number of spores in air
(ii) Presence of large number of thread-like branched hyphae
(iii) Presence of moisture and nutrients
(iv) Formation of round shaped sporangia
(a) (i) and (iii)
(b) (ii) and (iv)
(c) (i) and (ii)
(d) (iii) and (iv)
Answer: a

Question: Select the correct statements for the process of budding in yeast:
(i) A bud arises from a particular region on a parent body.
(ii) A parent cell divides into two daughter cells, here the parent identity is lost.
(iii) Before detaching from the parent body a bud may form another bud.
(iv) A bud when detaches from the parent body grows into a new individual.
(a) (i), (ii) and (iii)
(b) (ii), (iii) and (iv)
(c) (iii), (iv) and (i)
(d) (iv), (i) and (ii)
Answer: c

Question: Which among the following is not the function of testes at puberty?
(i) formation of germ cells
(ii) secretion of testosterone
(iii) development of placenta
(iv) secretion of estrogen
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (iii) and (iv)
(d) (i) and (iv)
Answer: c

Question: Which among the following statements are true for sexual reproduction in flowering plants?
(i) It requires two types of gametes.
(ii) Fertilisation is a compulsory event.
(iii) It always results in the formation of zygote.
(iv) Offsprings formed are clones.
(a) (i) and (iv)
(b) (i), (ii) and (iv)
(c) (i), (ii) and (iii)
(d) (i), (ii) and (iii)
Answer: c

Question: 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 fertilization they give rise to fruits
(a) (i) and (iv)
(b) (ii) and (iii)
(c) (i) and (iii)
(d) (ii) and (iv)
Answer: d

Question: Choose the correct statement(s) on budding in yeast from the following:
I. A parent cell divides into two or more daughter cells and here the parent identity is lost.
II. In this the elongated nucleus divides to form two or more daughter nuclei.
III. A bud arises from a particular region on a parent body.
IV. After detaching from the parent body the bud grows into a new independent individual.
(a) I only
(b) III only
(c) II and III only
(d) III and IV only
Answer: d

Assertion-Reason (A-R) Questions

For the following questions two statements are given- one labeled Assertion (A) and the other labeled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below:
(a) Both (A) and (R) are true and (R) is correct explanation of the assertion.
(b) Both (A) and (R) are true but (R) is not the correct explanation of the assertion.
(c) (A) is true but (R) is false.
(d) (A) is false but (R) is true.

Question:
Assertion (A) : Testes in human males are located outside the abdominal cavity in scrotum.
Reason (R) : Testes secrete the male sex hormone testosterone.
Answer : (b)

Question:
Assertion (A) : The human embryo gets implanted in the fallopian tube.
Reason (R) : Embryo gets nutrition from the mother’s blood with the help of special tissue called the Placenta.
Answer : (d)

Question:
Assertion (A) : A basic event in reproduction is the creation of a DNA copy.
Reason (R) : The DNA in the cell nucleus is the information source for making proteins.
Answer : (a)

Question:
Assertion (A) : Variation is useful for the survival of species over time.
Reason (R) : Populations of organisms fill well-defined places in the ecosystem, using their ability to reproduce.
Answer : (b)

Question:
Assertion (A) : Spores in Rhizopus are covered by thick walls.
Reason (R) : The thick wall protects the spores until they come into contact with a moist surface.
Answer : (a)

Question:
Assertion (A) : The process of DNA copying does not result in variations.
Reason (R) : No biochemical reaction is absolutely reliable.
Answer : (d)

Question:
Assertion (A) : Vegetative propagation makes possible propagation of plants that have lost the capacity to produce seeds.
Reason (R) : New plants are developed from seeds in vegetative propagation.
Answer : (c)

Question:
Assertion (A) : Pollen grains are produced by all flowers.
Reason (R) : Stamen is the male reproductive Mpart of a flower and produces pollen grains.
Answer : (d)

Question:
Assertion (A) : All multi-cellular organisms can divide cell-by-cell.
Reason (R) : Many multi-cellular organisms are not simply a random collection of cells.
Answer : (d)