CBSE Class 10 Biology How do Organisms Reproduce MCQs Set B

Question. Eggs starts developing in human female
(a) When she is in her mothers womb
(b) When she attains puberty
(c) Only after her birth
(d) After the first menstruation
Answer : A

Question. _______ is a common tube for urine and sperm in human male.
(a) Urethra
(b) Uterus
(c) Ureter
(d) None of the above
Answer : A

Question. An unisexual flower
(a) Has either carpel or stamen
(b) Do not have carpel
(c) Do not have stamen
(d) Has either petal or sepal
Answer : A

Question. Copper T and Loops are
(a) Contraceptive devices
(b) Conventional devices
(c) Conducive devices
(d) Contaminating devices
Answer : A

Question. Pre- natal sex determination has been prohibited by law due to
(a) Increasing cases of female foeticide
(b) High cost charged by doctors
(c) Possible danger of mothers health
(d) Increasing cases of male foeticide
Answer : A

Question. The place where fertilization take place in the human body is
(a) Oviduct
(b) Uterus
(c) Ovary
(d) vagina
Answer : A

Question. Where are sperms formed in the human body?
(a) Testis
(b) Vas deferens
(c) Prostate gland
(d) Ovary
Answer : A

Question. A fertilized ovule develops into a _____ in an angiosperm plant
(a) seed
(b) fruit
(c) flower
(d) cotyledon
Answer : A

Question. An animal which can reproduce by budding is
(a) Hydra
(b) Bryophyllym
(c) Yeast
(d) All of the above
Answer : A

Question. Male reproductive organ in flowering plant is
(a) Stamen
(b) Carpel
(c) Corolla
(d) Ovary
Answer : A

Fill in The Blank

Question. Future shoot hidden in a seed is called .......... .
Answer : Plumule

Question. By the fusion of male and female gametes, is formed.
Answer : Zygote

Question. .......... bearing anthers which produce .........., are the male reproductive parts of a flower.
Answer : Stamen, pollen grains

Question. ........ bearing ovary with .........., are the female reproductive parts of a flower.
Answer : Carpel, ovules

Question. .......... contain half the amount of DNA compared to the parents.
Answer : Germ cells

Question. The process of release of eggs from ovary is called ..........
Answer : Ovulation

Question. The two parts tied together during grafting are called .......... and ..........
Answer : Stock, Scion

Question. Release of egg from ovary is called as ......... 
Answer : Ovulation

Question. A bud in Hydra develops an outgrowth to repeated division at a .......... .......... .
Answer : Specific site

Question. Organisms such as .......... can regenerate if they are broken into pieces.
Answer : Hydra

Question. .......... is common method of multiplication of Yeast and Hydra.
Answer : Budding

Question. Ovaries are also responsible for the production of hormone called ...........
Answer : Estrogen/Progesterone

Question. A technique to produce generically alike individuals from a single cell is known as .........
Answer : Cloning

Assertion & Reasoning Based MCQs 

(a) Both assertion and reason are true, and reason is correct explanation of the assertion.
(b) Both assertion and reason are true, but reason is not the correct explanation of the assertion.
(c) Assertion is true, but reason is false.
(d) Assertion is false, but reason is true.

Question. Assertion : Corolla is a floral part. 
Reason : It helps in pollination.
Answer : B

Question. Assertion : Spores of Rhizopus can survive under extreme climatic conditions. 
Reason : Spores are the reproductive parts in Rhizopus.
Answer : B

Question. Assertion : Contraceptive pills can cause side effects in females. 
Reason : They prevent pregnancy by blocking the incoming sperms.
Answer : C

Question. Assertion : Male gametes are motile. 
Reason : They are free-living diploid cells.
Answer : C

Question. Assertion : Vagina acts as copulation canal and fertilisation canal both. 
Reason : Insemination occurs in vagina of female.
Answer : D

Question. Assertion : One pollen mother cell forms four microspores. 
Reason : Microspores are formed due to reduction division.
Answer : B

Question. Assertion : In human male, testes are extra abdominal and lie in scrotal sacs. 
Reason : Scrotum acts as a thermoregulator and keeps testicular temperature lower by 2°C for normal spermatogenesis.
Answer : A

Question. Assertion : The uterine line in human females becomes thick and spongy every month. 
Reason : The lining breaks and comes out through the vagina as blood and mucus if fertilisation does not occur.
Answer : B

Question. Assertion : Gametogenesis is the production of gametes through the meiosis. 
Reason : In oogenesis polar bodies are formed.
Answer : B

Question. Assertion : Regeneration cannot be regarded as reproduction. 
Reason : Most organism would not normally depend on being cut up to be able to reproduce.
Answer : A

Mark the statements true (T) or false (F).

Question. The radicle forms the shoot while the plumule forms the root.
Answer : false

Question. The period of menstruation usually lasts for nine months.
Answer : false

Question. Fertilization occurs in the Fallopian tube.
Answer : true 

Question. The stamens are collectively called gynoecium.
Answer : false

Question. Seminal vesicle secretes sperms.
Answer : false

Question. The prostate gland adds its secretion to the seminal fluid.
Answer : true 

Question. Oral pills do not disturb hormonal balance in human body.
Answer : false

Question. A fertilized ovum develops into a baby inside the uterus.
Answer : true 

Question. Gonorrhoea and syphilis are common sexually transmitted bacterial diseases.
Answer : true 

Very-Short-Answer Questions

Question. Where is zygote present in the flower after fertilization?
Answer : After fertilization zygote is present inside the ovule.

Question. What is the meaning of gestation period?
Answer : The time from fertilization to birth, i.e., the total period of embryonic development, is gestation period.

Question. What does an embryo in a plant contain?
Answer : The embryo contains plumule, radicle and cotyledons.

Question. Where are pollen grains produced?
Answer : Pollen grains are produced in anthers.

Question. Name the protective covering of testes.
Answer : Testes are protected by the scrotum.

Question. Write down the function of seminal vesicle.
Answer : Seminal vesicle stores sperms and secretes semen.

Question. What is umbilical cord?
Answer : The tube that connects the embryo and the placenta is the umbilical cord.

Question. Name themale and female reproductive organs of a flower.
Answer : Male and female reproductive organs of a flower are androecium and gynoecium, respectively.

Question. Describe the parts of a sperm.
Answer : The sperm has a head and a tail.

Question. What is the meaning of parturition?
Answer : The expulsion of baby from the uterus by the contraction of uterine muscles is parturition, or birth.

Question. Where are ova produced?
Answer : Ova are produced in the ovaries.