X science
AJAY PARMAR
1
GROUP TUITION
Chapter – 15, REPRODUCTION IN ORGANISMS
Section – 1
Answer the following from the alternatives given:
25
1. Asexual reproduction is ____
(A) a fusion of specialized cells
(B) a method by which all types of organism reproduce
(C) a method producing genetically identical offsprings.
(D) a method in which more than one parent are involved.
2. One of the following organism does not reproduce by binary fission. This is _____
(A) Amoeba
(B) Plasmodium
(C) Euglena
(D) Paramoecium
3. Reproduction is essential for living organisms in order to ______
(A) keep the individual organ alive
(B) fulfil their energy requirements
(C) maintain growth
(D) continue the species forever
4. A multicellular organism which reproduces by budding is _____
(A) Amoeba
(B) Yeast
(C) Paramoecium
(D) Hydra
5. A simple multicellular animal having tentacles and lives in fresh water reproduces by the asexual
method of _____
(A) binary fission
(B) spore formation (C) budding
(D) fragmentation
6. In which of the following living organism spore formation takes place?
(A) Mucor
(B) Planaria
(C) Spirogyra
(D) Potato
7. Method of asexual reproduction in spirogyra ____
(A) division of a cell into two cell
(B) breaking up of filaments into smaller bits
(C) division of a cell into many cells
(D) formation of a large number of buds
8. An alga which reproduces by the asexual reproduction method called fragmentation is ____
(A) Rhizopus
(B) Salmonella
(C) Plasmodium
(D) Spirogyra
9. The cut part of plant stem (having roots and fixed to ground) which is used in the process of grafting is
_____
(A) stock
(B) scion
(C) cutting
(D) bud
10. In asexual reproduction, two offsprings having the same genetic material and the same body feature are
called _____
(A) callus
(B) twins
(C) clones
(D) chromosomes
11. By whom the hereditary characters are inherited?
(A) Golgi complex (B) Riboosomes
(C) Chromosomes
(D) mitochondria
12. By the duplication of what the inheritance of hereditary characters in the progeny cells takes place?
(A) DNA
(B) RNA
(C) ATP
(D) ADP
13. In which organism regeneration is seen?
(A) Amoeba, Paramoecium
(B) Amoeba, Plasmodium
(C) Hydra, Paramoecium
(D) Hydra, Planaria
14. In which method of artificial propagation part of the stem is pulled towards the ground and covered with
soil?
(A) Cutting
(B) Layering
(C) Grafting
(D) Budding
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X science
AJAY PARMAR
2
GROUP TUITION
15. The reproduction taking place by union of two types of sex cells is known as
(A) Asexual reproduction
(B) Sexual reproduction
(C) Vegetative reproduction
(D) Spore formation
16. The flower having both, male and female reproductive organs is known as __
(A) Unisexual
(B) Bisexual
(C) Sexual
(D) Asexual
17. The female reproductive organ of the flower is known as__
(A) Calyx
(B) Corolla
(C) Stamen
(D) Carpel
18. Fertilized egg cell results into
(A) Seed
(B) Embryo
(C) Fruit
(D) Egg cell
19. At which age male and female generally look alike?
(A) Old age
(B) Puberty
(C) Teen age
(D) Childhood
20. Girls normally attain puberty at the age of ____
(A) 17 years
(B) 12 years
(C) 20 years
(D) 16 years
21. Give name of the main reproductive organ in males?
(A) Vas deference
(B) Penis
(C) Seminal vesicle (D) Testes
22. Normally in females how many ovules are released from alternate ovaries every month?
(A) One
(B) Two
(C) Three
(D) Four
23. Which surgery is carried in female for control of population?
(A) Vasectomy
(B) Tubectomy
(C) Contraceptive pills
(D) None of these
24. Syphilis is caused by
(A) Treponema palidium
(B) Neissena gonorrhea
(C) Fungi
(D) Virus
25. Which of the following reproduces through spore formation?
(A) Fern
(B) Planaria
(C) Spirogyra
(D) Potato
Section – 2
Answer the following (2 marks each)
8
What is multiple fission? Describe.
Give note on: Fragmentation.
What is Puberty? Give common and sexually changes occur during the puberty in a male.
Describe the methods for population control.
Answer the following (2 marks each)
6
Describe the method of reproduction in fungus.
What is the basic difference between asexual reproduction and sexual reproduction?
Answer the following (3 marks each)
6
Explain how, new Bryophyllum plants can be produced from the leaves of the old plant? Illustrate your
answer with the help of a labelled diagram.
8. Describe the layering method for the artificial propagation of plants. Illustrate your answer with the help
of a labelled diagram. Name any two plants which are propagated by the layering method.
D Solve the following (5 marks each)
5
9. Describe menstrual cycle in female.
A
1.
2.
3.
4.
B
5.
6.
C
7.
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X science
AJAY PARMAR
3
GROUP TUITION
Answers:
1. C
2. B
3. D
4. D
5. C
6. A
7. B
8. D
9. A
10. C
11. C
12. A
13. D
14. B
15. B
16. B
17. D
18. A
19. D
20. B
21. D
22. A
23. B
24. A
25. C
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