How do Organisms Reproduce MCQ Questions Class 10 Science Chapter 8
NCERT MCQ Questions for Class 10 Science Chapter 8 How do Organisms Reproduce. How do Organisms Reproduce MCQ Questions with Answers from Class 10 Science.
How do Organisms Reproduce MCQ Questions Class 10 Science Chapter 8
How do Organisms Reproduce Multiple Choice Questions with Answers Class 10 Science Chapter 8 PDF is available.
1) Examples of types of asexual reproduction are
a) Humans
b) Fission
c) Regeneration
d) both b and c
Ans. d)
Explanation: Humans show sexual reproduction.
2) What is the importance of reproduction?
a) It is essential for continuity of life of living organisms.
b) The variation can be produced from reproduction; it leads to generation of new characteristics.
c) It is the fundamental powers for heredity
d) All of the above
Ans. d)
Explanation: Reproduction helps in continuation of generations with new characteristics and is the fundamental property of heredity.
3) Examples of asexual reproduction are:
a) Humans
b) dogs
c) yeast
d) fishes
Ans. c)
Explanation: Yeast shows asexual reproduction
4) The type of asexual reproduction in which generation of new part form a lost part of living organisms is termed as
a) Regeneration
b) Binary Fission
c) Fragmentation
d) Budding
Ans. a)
Explanation: Lizard tail’s is an example of regeneration as it regenerates even after getting cut.
5) Identify the process in the diagram given below.
a) Regeneration
b) Binary Fission
c) Fragmentation
d) Budding
Ans. d)
Explanation: Budding is the common type of asexual reproduction in which the offspring develops from outgrowth of parent cell from a particular site
6) Define the process in the diagram given below.
a) Regeneration the name itself suggests generation of new organ or replacement from the lost part of organism
b) The sporogenesis is formation of spore for the purpose of reproduction.
c) Budding can be defined as a type of asexual reproduction in which new outgrowth will reproduce from existing organism
d) This is a type of asexual reproduction in which generation of new part form a lost part of living organisms.
Ans. b)
Explanation: Spore formation is a type of asexual reproduction. It is also called as sporogenesis.
7) Diploid state is denoted as
a) n
b) 3n
c) n2
d) 2n
Ans. 2n
Explanation: Sporophytic generation of the plants involves fusion of gametes and producing diploid state.
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8) Male reproductive organ in flower are
a) anther
b) filament
c) style
d) ovary
Ans. a)
Explanation: Anther is the male reproductive organ in flower as he it produces pollen grains.
9) ____is the process of fusion of male and female gamete.
a) spermatogenesis
b) megasporogenesis
c) Fertilization
d) microsporogenesis
Ans. c)
Explanation: The male and the female gamete fuse together to form a zygote is called fertilization.
10) The MMC (Megaspore Mother Cell) releases number of megaspore by the process of ____.
a) mitosis
b) sporogenesis
c) fertilization
d) meiosis
Ans. d
Explanation: The ovule is present within ovaries, which releases the sporogenous cells called as Megaspore Mother Cell (MMC) which in turn releases megaspore.
11) The movement of sperm is due to the ____ present in them.
a) glucose
b) fructose
c) sucrose
d) all of these
Ans. b)
Explanation: The seminal vesicle it contains fluid and sugar called as fructose.
This fructose gives energy to sperm
12) The process of fertilization takes ____ days.
a) 12
b) 10
c) 14
d) 5
Ans. c)
Explanation: The maturation of sperm and its fertilization of egg takes 14 days.
13) The hormones released after ovulation are__
a) estrogen
b) progesterone
c) relaxin and inhibin
d) all of the above
Ans. d)
Explanation: The ovulation leads to formation of female hormones such as estrogen, progesterone, relaxin and inhibin.
14) The ovulation period occurs at the ___ days of menstrual cycle.
a) 12
b) 5
c) 14
d) 10
Ans. c)
Explanation: At the 14 days of menstruation cycle ovulation occurs.
15) Menopause occurs at the age of ______ years.
a) 40-45
b) 45-50
c) 40-42
d) 35-40
Ans. b)
Explanation: The end of menstrual cycle after the age of 45-50 called as menopause.
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