CBSE Class 10 Biology How do Organisms Reproduce MCQs Set E

Question: Anemophily is pollination by:
a) Air
b) Water
c) Insects
d) Animal
Answer: a

Question: The following figure represents:

a) Budding in Hydra
b) Budding in Planaria
c) Regeneration in Planaria
d) Regeneration in Hydra
Answer: c

Question: The diagrams below represent the reproductive systems in the human male and female. The blockages shown at A and B would most likely interfere with the ability to:

a) Transport gametes
b) Produce mature gametes
c) Eliminate waste products through the urethra
d) Express secondary sex characteristics
Answer: a

Question: Example of external fertilization is:
a) Fish and frog
b) Frog and monkey
c) Dog and goat
d) Goat and fish
Answer: a

Question: In the figure of budding in Yeast, structures a, b, c and d should be labelled respectively as:

a) Nucleus of bud, bud, Yeast, nucleus
b) Dividing nucleus of bud, bud, Yeast, nucleus
c) Nucleus of bud, bud, Yeast, dividing nucleus of yeast
d) Dividing nucleus of Yeast, Yeast, bud, nucleus of bud
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: In a potato, vegetative propagation takes place by:
a) Root
b) Leaf
c) Stem tuber
d) Grafting
Answer: c

Question: Anemophily is the pollination by:
a) Birds
b) Rain
c) Insects
d) Wind
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: At the time of entering into ovule, pollen tube has:
a) Three male nuclei
b) Two male nuclei
c) One gamete nucleus
d) Four male gametes
Answer: b

Question: The process of release of eggs from the ovary is called:
a) Menstruation
b) Reproduction
c) Insemination
d) Ovulation
Answer: d

Question: The embryo sac of a typical dicot at the time of fertilization is:
a) 8 celled
b) 7 celled
c) 6 celled
d) 5 celled
Answer: b

Question: During favourable conditions, Amoeba reproduces by:
a) Multiple fission
b) Binary fission
c) Budding
d) Fragmentation
Answer: b

Question: Which of the following regenerates with the help of layering?
a) Cactus
b) Rose
c) Mango
d) Jasmine
Answer: d

Question: Tunica albuginea is the covering around:
a) Ovary
b) Testes
c) Kidney
d) Heart
Answer: b

Question: Menstrual cycle is generally of:
a) 21 days
b) 28 days
c) 38 days
d) 40 days
Answer: b

Question: The process of reproduction which involves only a single parent to form an individual:
a) Sexual reproduction
b) Asexual reproduction
c) None of these
d) Both A & B are correct
Answer: b

Question: Loss of reproductive capacity in women after age of 45 years is:
a) Menstruation
b) Ageing
c) Menopause
d) Menarche
Answer: c

Question: Many unicellular organisms reproduce by the process of
a) Fission
b) Ovulation
c) Regeneration
d) Non-disjunction
Answer: a

Question: Anemophily is the pollination by:
a) Birds
b) Rain
c) Insects
d) Wind
Answer: d

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

Question: Which is the most common method of reproduction in majority of fungi and bacteria?
a) Budding
b) Spore formation
c) Binary fission
d) Multiple fission
Answer: b

Question: In man, fertilization of ovum takes place in:
a) Vagina
b) Ovary
c) Uterus
d) Fallopian tubes
Answer: d

Question: Progesterone is secreted by:
a) Corpus luteum
b) Thyroid
c) Thymus
d) Testis
Answer: a

Question: Gemmule formation in sponges is helpful in:
a) Parthenogenesis
b) Sexual reproduction
c) Only dissemination
d) Asexual reproduction
Answer: d

Question: Ovulation in mammals is caused by:
a) FSH and TSH
b) FSH and LH
c) FSH and LTH
d) LTH and LH
Answer: b

Question: Cowper’s glands are found in:
a) Male mammals
b) Female mammals
c) Male amphibians
d) Female amphibians
Answer: a

Question: Budding and fission are processes used by:
a) Dioecious species
b) Hermaphroditic organisms
c) Organisms requiring new gene combinations for each generation
d) Asexually reproducing species
Answer: d

Question: Ovaries produce:
a) Oestrogen and progesterone
b) Oestrogen only
c) Progesterone only
d) Testosterone
Answer: a

Question: Seminiferous tubules are composed of:
a) Spermatogonia
b) Glandular epithelium
c) Sensory epithelium
d) Germinal epithelium
Answer: d

Question: Plants of desired qualities are produced by:
a) Cutting
b) Grafting
c) Layering
d) Any one of (a), (b), (c)
Answer: b

Question: The vegetative reproduction in sweet potato is done by:
a) Stem
b) Leaf
c) Root
d) Flower
Answer: c

Question: Site of fertilization in mammals is:
a) Ovary
b) Uterus
c) Vagina
d) Fallopian tube
Answer: d

Question: Site of fertilization in mammals is:
a) Ovary
b) Uterus
c) Vagina
d) Fallopian tube
Answer: d

Question: Release of oocytes from ovary is:
a) Gestation
b) Ovulation
c) Parturition
d) Implantation
Answer: b

Question: The correct sequence of reproductive stages seen in flowering plants is:
a) Gametes, zygote, embryo, seedling
b) Zygote, gametes, embryo, seedling
c) Seedling, embryo, zygote, gametes
d) Gametes, embryo, zygote, seedling
Answer: a

Question: Vegetative propagation is possible by:
a) Root
b) Stem
c) Leaves
d) All of these
Answer: d

Question: In mammals, the testes lie in scrotal sacs due to:
a) Presence of urinary bladder
b) Presence of rectum
c) Long vas-deferens
d) Requirement of low temperature for spermatogenesis
Answer: d

Question: The figure shown above illustrates which method of vegetative propagation?
a) Bud formation
b) Grafting
c) Layering
d) Spore formation
Answer: b

Question: Assertion: In male reproductive system, transport of sperm takes place in a fluid which also provides nutrition.
Reason: Prostate glands and seminal vesicles secrete into the vas deferens.
a) Both A and R are true and R is the correct explanation of A.
b) Both A and R are true but R is not the correct explanation of A.
c) A is true but R is false.
d) A is false but R is true.
e) Both A and R are false.
Answer: a

Question: Assertion: Ovary releases one egg every month.
Reason: The lining of uterus is always thick and spongy.
a) Both A and R are true and R is the correct explanation of A.
b) Both A and R are true but R is not the correct explanation of A.
c) A is true but R is false.
d) A is false but R is true.
Answer: c

Question: Assertion: In human beings, the female plays a major role in determining the sex of the offspring.
Reason: Women have two X chromosomes.
a) Both A and R are true and R is the correct explanation of A.
b) Both A and R are true but R is not the correct explanation of A.
c) A is true but R is false.
d) A is false but R is true.
Answer: d