Class 10 Science Chapter 8 MCQ Online Test for 2021-2022
|Chapter: 8||How do Organisms Reproduce|
|Contents:||Multiple Choice Questions (MCQ) Tests|
Class 10 Science Chapter 8 MCQ with Answers for 2021-22
Class 10 Science Chapter 8 MCQ Online Test Papers provide an ample practice to prepare the complete chapter for exams. Practice with these questions to clear all the concepts related to 10th Standard Science Chapter 8 How do organisms reproduce. All the questions are strictly confined to Latest NCERT Books for Class 10 Science only.
Consider the following statements and choose the correct one:
[A]. Reproduction by human beings ensure that the human species will continue to exist on this earth for all the time to come.
[B]. Reproduction gives rise to more organisms with the same basic characteristics as their parents.
[C]. The production of new organisms from the existing organisms of the same species is known as reproduction.
[D]. All the above
Which among the following diseases is not sexually transmitted?
[C]. HIV – AIDS
Read the following sentences carefully, and choose the incorrect one:
[A]. Many single celled organisms like protozoa and bacteria just split into two identical halves during cell division, leading to the creation of new organisms, called fission.
[B]. In multiple fission the parent organism divides to form many new organisms at the same time
[C]. In binary fission the parent organism divides to form three new organisms.
[D]. Paramecium and amoeba dividing or reproducing by the method of binary fission.
Which among the following is not the function of testes at puberty?
[A]. Formation of germ cells, and Secretion of testosterone
[B]. Secretion of testosterone, and Development of placenta
[C]. Development of placenta, and Secretion of estrogen
[D]. Formation of germ cells, and Secretion of estrogen
In human males, the testes lie in the scrotum, because it helps in the
[A]. Process of mating
[B]. Formation of sperm
[C]. Easy transfer of gametes
[D]. All the above
During adolescence, several changes occur in the human body. Mark one change associated with sexual maturation in boys
[A]. Loss of milk teeth
[B]. Increase in height
[C]. Cracking of voice
[D]. Weight gain
In the last year board examination, Rahul were asked a question where he had to choose the statement which was/were incorrect? Will you be able to answer this question?
[A]. In vegetative propagation, new plants are obtained from the parts of old plants without the help of any reproductive organs.
[B]. It is necessary to plant the whole potato tuber in the ground to produce the new potato plants.
[C]. Bryophyllum plants can be reproduced by vegetative reproduction by using either a piece of its stem or its leaves.
[D]. The green grass grows in the fields after range from the dry, old stems of grass plants present in the fields, by the method of vegetative propagation.
Consider the following statements and choose the incorrect one:
[A]. Grafting is a method in which the cut stems of two different plants are joined together in such a way that the two stems join and grow as a single plant.
[B]. Grafting enables us to combine the most desirable characteristics of the two plants in its flower and fruits.
[C]. The new plants produced by artificial vegetative propagation will not be exactly like the parent plants.
[D]. None of the above
Offspring formed as a result of sexual reproduction exhibit more variations because
[A]. Sexual reproduction is a lengthy process
[B]. Genetic material comes from two parents of the same species
[C]. Genetic material comes from two parents of different species
[D]. Genetic material comes from many parents
Which among the following statements are true for sexual reproduction in flowering plants?
[A]. It requires two types of gametes, and Offspring formed are clones
[B]. It requires two types of gametes, and Fertilisation is a compulsory event, and Offspring formed are clones
[C]. It requires two types of gametes, and Fertilisation is a compulsory event, and It always results in formation of zygote
[D]. Fertilisation is a compulsory event, and It always results in formation of zygote, and Offspring formed are clones
In a quiz competition, you are asked a question where you have to choose the statement which is/ are incorrect?
[A]. The material which carries genetic information from the parents to the offspring is DNA.
[B]. The new organisms produced by one parent through a sexual reproduction which are genetically identical to the parent are called clones.
[C]. Dolly the sheep hit the headlines in 1997 as the first successfully produced animal clone.
[D]. The two DNA molecules formed by replication will be similar and be exactly identical to the original DNA.
Priya is writing some statements, choose the correct statement and help him:
[A]. All the multicellular animals start their life from a single cell called zygote through sexual reproduction.
[B]. The fusion of a male gamete with a female gamete to form a zygote during the sexual reproduction is called fertilization.
[C]. The cell which is formed by the fusion of male and female gametes is called zygote.
[D]. All the above
Which of the following statement is or are incorrect?
[A]. In sexual reproduction the offspring although similar to their parents are not identical to them or to one another.
[B]. The fertilization which occurs inside the female body is called internal fertilization.
[C]. The fertilization occurs outside the female body is called external fertilization
[D]. The gametes are special type of cells called the reproductive cells which contain only double the amount of DNA as compared to the normal body cells of an organisms.
Consider the following statements and choose the correct one:
[A]. The age at which the sex hormones or gametes begin to be produced and the boy and girl become sexually mature is called puberty.
[B]. The testes produce the male sex hormone called testosterone and the ovaries produce two female sex hormones, estrogen and progesterone.
[C]. The secretion of seminal vesicles and prostate gland provide nutrition to the sperms and also make their further transport easier.
[D]. All the above.
Length of pollen tube depends on the distance between
[A]. Pollen grain and upper surface of stigma
[B]. Pollen grain on upper surface of stigma and ovule
[C]. Pollen grain in anther and upper surface of stigma
[D]. Upper surface of stigma and lower part of style
Recently, in a science class test, you are asked a question where you have to say whether the statements are correct or not?
[A]. A zygote is a single cell. It is smaller than a full stop.
[B]. The average gestation period in humans is about six months.
[C]. An embryo is multicellular. The body features of growing baby in the embryo are not much developed.
[D]. A foetus is also multicellular. The body features of developing baby like heads, eyes, legs and ears etc. can be identified.
Puja is writing some statements but she confused to know whether the statements are correct or not? If you know the answer to this question, then tell her:
[A]. The breakdown and removal of the inner, thick and soft lining of the uterus along with its blood vessels in the form of vaginal bleeding is called menstrual flow.
[B]. Menstruation stops temporarily when the ovum or egg is fertilized and the woman gets pregnant.
[C]. The menstrual cycle is controlled by hormones.
[D]. The first occurrence of menstruation at puberty is called menopause.
Vegetative propagation refers to formation of new plants from
[A]. Stem, roots and flowers
[B]. Stem, roots and leaves
[C]. Stem, flowers and fruits
[D]. Stem, leaves and flowers
In Rhizopus, tubular thread-like structures bearing sporangia at their tips are called
The number of chromosomes in parents and off-springs of a particular species remains constant due to
[A]. Doubling of chromosomes after zygote formation
[B]. Halving of chromosomes during gamete formation
[C]. Doubling of chromosomes after gamete formation
[D]. Halving of chromosomes after gamete formation
In Spirogyra, asexual reproduction takes place by
[A]. Breaking up of filaments into smaller bits
[B]. Division of a cell into two cells
[C]. Division of a cell into many cells
[D]. Formation of young cells from older cells
A feature of reproduction that is common to Amoeba, Spirogyra and Yeast is that
[A]. They reproduce asexually
[B]. They are all unicellular
[C]. They reproduce only sexually
[D]. They are all multicellular
Which of the following is the correct sequence of events of sexual reproduction in a flower?
[A]. Pollination, fertilization, seedling, embryo
[B]. Seedling, embryo, fertilization, pollination
[C]. Pollination, fertilization, embryo, seedling
[D]. Embryo, seedling, pollination, fertilization
In a flower, the parts that produce male and female gametes (germ cells) are
[A]. Stamen and anther
[B]. Filament and stigma
[C]. Anther and ovary
[D]. Stamen and style
In the list of organisms given below, those that reproduce by the asexual method are
[A]. Dog, and Amoeba
[B]. Banana, Yeast, Amoeba
[C]. Banana, Amoeba
[D]. Dog, Yeast, Amoeba
What is meant by Vegetative Propagation according to 10th Science Chapter 8?
Producing a new plant using the parts of plants like leaf, stem, roots, etc., is known as Vegetative Propagation.
What is Carpel in flower as per Class 10 Science Chapter 10?
Carpel is present in the centre of a flower and is the female reproductive part.
What happen to zygote after fertilisation according to NCERT 10th Science?
After fertilisation, the zygote divides several times to form an embryo within the ovule. The ovule develops a tough coat and is gradually converted into a seed.
What is the function of placenta explained in 10th Science NCERT Book Chapter 8?
The embryo gets nutrition from the mother’s blood with the help of a special tissue called placenta.
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