How do Organisms Reproduce? Class 10 Worksheet Science

Multiple Choice Questions

Q1: The two oviducts in a human female unite into an elastic bag like is known as
(a) Vagina
(b) Uterus
(c) Fallopian tube
(d) Cervix

Q2: Which of the following disease is transmitted sexually?
(a) Kala azar
(b) Jaundice
(c) Cholera
(d) Syphilis

Q3: Which of the following is a contraceptive?
(a) Copper
(b) Condom
(c) Diaphragm
(d) All of these

Q4: When a animal is cut into pieces and each piece grows into a complex organism. What is the process?
(a) Budding
(b) Fragmentation
(c) Spore formation
(d) Regeneration

Q5: Which is the portion on which grafting is done it provides the roots?
(a) Stock
(b) Scion
(c) Both a and b
(d) None of these

Q6: Where does fertilization occur in human females?
(a) Uterus
(b) Cervix
(c) Oviduct
(d) None of these

Q7: Growing fetus derive nutrition from mother’s blood through
(a) Uterus
(b) Fallopian tube
(c) placenta
(d) cervix

Q8: What is the puberty age in human males?
(a) 8-10
(b) 10-12
(c) 12-14
(d) 14-16

Q9: Fruits are formed from
(a) Stamen
(b) Stigma
(c) Ovary
(d) Ovule

Q10: IUCD is for
(a) Vegetative propagation
(b) Contraception
(c) Increasing fertility
(d) Avoiding miscarriage

Assertion & Reason Type Questions

Q1: Each of these questions contains an Assertion followed by Reason. Read them carefully and answer the question on the basis of following options. You have to select the one that best describes the two statements.
Assertion (A): Spores are unicellular bodies.
Reason(R) : The parent body simply breaks up into smaller pieces on maturation.
(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.

Q2: Each of these questions contains an Assertion followed by Reason. Read them carefully and answer the question on the basis of following options. You have to select the one that best describes the two statements.
Assertion(A) : Asexual reproduction is a primitive type of reproduction.
Reason (R) : Asexual reproduction involves only mitotic cell division.
(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.

Q3: Each of these questions contains an Assertion followed by Reason. Read them carefully and answer the question on the basis of following options. You have to select the one that best describes the two statements.
Assertion(A) : The offspring produced by sexual reproduction is likely to adjust better in environmental fluctuation.
Reason (R) : During the fusion of gametes there is mixing of genetic material from Two parents.
(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.

Q4: Each of these questions contains an Assertion followed by Reason. Read them carefully and answer the question on the basis of following options. You have to select the one that best describes the two statements.
Assertion (A): Testes lie in penis outside the body.
Reason (R): Sperms require temperature lower than the body temperature for development
(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.

Q5: Each of these questions contains an Assertion followed by Reason. Read them carefully and answer the question on the basis of following options. You have to select the one that best describes the two statements.
Assertion (A): Unisexual flowers have separate male and female flowers whereas a typical monocot embryo comprises an embryonal axis with single cotyledon.
Reason (R): Cucumber, pumpkin and water melon are example of unisexual flowers.
(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.

Case Study Based Questions

Read the following and answer the questions:
Preeti is very fond of gardening. She has different flowering plants in her garden. One Day few naughty children entered her garden and plucked many leaves of Bryophyllum plant And threw them here and there in the garden. After few days, Preeti observed that new Bryophyllum plants were coming out from the leaves which fell on the ground.
Q1: What does the incidence sited in the paragraph indicate?
(a) Bryophyllum leaves have special buds that germinate to give rise to new plant.
(b) Bryophyllum can propagate vegetatively through leaves.
(c) Bryophyllum is a flowering plant that reproduces only asexually
(d) Both (a) and (b).

Q2: Which of the following plants can propagate vegetatively through leaves like Bryophyllum?
(a) Guava
(b) Begonia
(c) Ginger
(d) Mint

Q3: Do you think any other vegetative part of Bryophyllum can help in propagation? If yes, then which part?
(a) Roots
(b) Stems
(c) Flowers
(d) Fruits

Q4: Which of the following plant is artificially propagated (vegetatively) by stem cuttings in horticultural practices?
(a) Potato
(b) Snake plant
(c) Rose
(d) Water hyacinth

Read the following and answer the questions:
Menstrual cycle is the cycle of events taking place in female reproductive organs, under the control of sex hormones, in every 28 days. At an interval of 28 days, a single egg is released from either of two ovaries. Regular Menstrual cycle stopped abruptly in a married women. She got herself tested and was happy to discover that she is pregnant with her first baby.
Q5: Why menstruation stops in a pregnant female?
(a) The egg gets fertilised so need not to be expelled out of body
(b) Ovulation stops during pregnancy and so do menstruation
(c) Thick uterine lining is needed for proper development of embryo, so that it is retained
(d) All of these

Q6: Select the correct sequence of acts that leads to pregnancy in a female.
A. Fertilisation of egg
B. Ovulation
C. Formation of zygote
D. Implantation
(a) D ⇒⇒C ⇒⇒B ⇒⇒A
(b) B⇒⇒ A⇒⇒C⇒⇒D
(c) A ⇒⇒ B⇒⇒ C⇒⇒ D
(d) D⇒⇒ C⇒⇒ A ⇒⇒B

Q7: How is a zygote different from embryo?
(a) Zygote is formed by repeated division of embryo
(b) Zygote is formed by fusion of sperm and egg whereas embryo is formed by fusion of zygote with other zygote
(c) Zygote is single celled but embryo is multicellular
(d) Zygote is formed by fertilisation but embryo is formed without fertilization

Q8: What change takes place in the uterus of a pregnant female?
(a) Uterine lining becomes thick and vascular
(b) Placenta develops which links the embryo to mother through umbilical cord
(c) Uterus lining containing lots of blood capillaries breaks down
(d) Both (a) and (b)

Very Short Answer Type Questions

Q1: Define vegetative propagation.

Q2: What are the agents of pollination?

Q3: Name the vegetative parts used in Bryophyllum and sugarcane for propagation.

Q4: Name any two organisms that reproduce by spores.

Q5: Name two sex hormones.

Short Answer Type Question

Q1: Define the terms unisexual and bisexual giving one example of each.
Q2: How does leishmania and Planaria reproduce differently ?
Q3: How does bryophyllum produce new plants?
Q4: How does rhizopus reproduce?
Q5: Exlain how human embryo get nourished in mother body?
Q6: What changes occur in the flower after fertilisation?
Q7: How do potato and Bryophyllum plants reproduce vegetatively?
Q8: What is the significance of sexual reproduction?
Q9: What is regeneration? Name two organisms that can reproduce by regeneration.
Q10: State the changes that occur in human males and females at puberty.

Long Answer Type Questions 

 Q1: State the functions of the following:
(a) testis
(b) ovaries
(c) vas deferens
(d) stamen
(e) pistil

Q2: List the advantages of vegetative propagation
Q3: Explain various steps of budding in yeast.
Q4: What is the importance of variation in the survival of individuals?
Q5: Describe various methods of asexual reproduction in organisms with suitable examples?

You can access the solutions to this worksheet here.