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Class X-How do Organisms Reproduce?- Vasu Classes
1.
During favourable conditions, Amoeba reproduces by
a) multiple fission
b) binary fission
c) budding
d) fragmentation
2.
A feature of reproduction that is common to Amoeba, Yeast and Spirogyra is that
a) they reproduce asexually
b) they are all unicellular
c) they reproduce only sexually
d) they are all multicellular
3.
Bryophyllum can be propagated vegetatively by the
a) stem
b) leaf
c) root
d) flower
4.
The period of pregnancy is called
a) gestation period
b) incubation period
c) ovulation
d) menstruation period
5.
The process of release of eggs from the ovary is called
a) mensuration
b) ovulation
c) insemination
d) reproduction
6.
The period during adolescence when the reproductive tissues begin to mature is called
a) ovulation
b) germination
c) propagation
d) puberty
7.
In human beings, the fertilization occurs in the
a) fallopian tube
b) uterus
c) ovary
d) vagina
8.
Along the path of the vas-deferens the secretions of which gland provide nutrition to the sperms?
a) prostate gland
b) seminal vesicle
c) scrotum
d) urinry bladder
9.
The embryo in humans gets nutrition from the mother’s blood with the help of a special tissue called
a) placenta
b) villi
c) uterus
d) womb
10.
Which among the following diseases is not sexually transmitted?
a) syphilis
b) hepatitis
c) AIDS
d) gonorrhea
11.
Which of the following method of contraception protects from acquiring sexually transmitted diseases?
a) Surgery
b) Condoms
c) Copper-T
d) Oral pills
12.
In human males, the testes lie in the scrotum, because it helps in the
a) secretion of estrogen
b) easy transfer of gametes
c) all of these
d) formation of sperms
13.
Fruits are formed from
a) ovary
b) ovule
c) stigma
d) stamen
14.
IUCD is for
a) Vegetative propagation
b) Increasing fertility
c) Contraception
d) Avoiding miscarriage
15.
Tubectomy is carried out by blocking the
a) oviduct
b) testes
c) vagina
d) cervix
16.
In the list of organisms given below, those that reproduce by the asexual method are
(i) banana
(ii) dog
(iii) yeast
(iv) Amoeba
a) (ii) and (iv)
b) (i) and (iv)
c) (ii), (iii) and (iv)
d) (i), (iii) and (iv)
17.
During adolescence, several changes occur in the human body. Mark one change associated with sexual maturation in boys
a) increase in height
b) cracking of voice
c) increase in weight
d) none of these
18.
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
19.
An organism capable of reproducing by two asexual reproduction methods one similar to the reproduction in yeast and the other similar to the reproduction in Planaria is:
a) Hydra
b) Spirogyra
c) Bryophyllum
d) Paramecium
20.
Which among the following is not the function of testes at puberty?
a) Formation of germ cells, and Secretion of estrogen
b) Development of placenta, and Secretion of estrogen
c) Formation of germ cells, and Secretion of testosterone
d) Secretion of testosterone, and Development of placenta
21.
There is a greater possibility for the evolution of a new species in organisms which reproduce by
a) budding
b) fertilisation
c) binary fission
d) none of these
22.
The ability to reproduce is lost in a female after
a) menopause
b) menarche
c) fertilisation
d) none of these
23.
A pair of duct arising from testis, which carry sperms are
a) fallopian tube
b) vas deferens
c) oviduct
d) all of these
24.
Assertion: Ovary releases one egg every month.
Reason: The lining of uterus is always thick and spongy.
a) A is true but R is false.
b) Both A and R are true and R is the correct explanation of A.
c) Both A and R are true but R is not the correct explanation of A.
d) A is false but R is true.
25.
Assertion: In human beings, the female, play a major role in determining the sex of the offspring.
Reason: Women have two X chromosomes.
a) Both A and R are true but R is not the correct explanation of A.
b) A is false but R is true.
c) Both A and R are true and R is the correct explanation of A.
d) A is true but R is false.
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