Class 10 Biology


Exemplar Problems MCQ III

In the given figure, the parts A, B and C are sequentially

10 science reproduction exemplar question
  • Cotyledon, plumule and radicle
  • Plumule, radicle and cotyledon
  • Plumule, cotyledon and radicle
  • Radicle, cotyledon and plumule

    Answer: (d) Radicle, cotyledon and plumule

Offspring formed as a result of sexual reproduction exhibit more variations because

  • Sexual reproduction is a lengthy process
  • Genetic material comes from two parents of the same species
  • Genetic material comes from two parents of different species
  • Genetic material comes from many parents

    Answer: (b) Genetic material comes from two parents of the same species

Reproduction is essential for living organisms in order to

  • Keep the individual organism alive
  • Fulfill their energy requirement
  • Maintain growth
  • Continue the species generation after generation

    Answer: (d) Continue the species generation after generation

During adolescence, several changes occur in the human body. Mark one change associated with sexual maturation in boys

  • Loss of milk teeth
  • Increase in height
  • Cracking of voice
  • Weight gain

    Answer: (c) Cracking of voice

In human females, an event that reflects onset of reproductive phase is

  • Growth of body
  • Changes in hair pattern
  • Change in voice
  • Menstruation

    Answer: (d) Menstruation

In human males, the testes lie in the scrotum, because it helps in the

  • Process of mating
  • Formation of sperm
  • Easy transfer of gametes
  • All the above

    Answer: (b) Formation of sperm

Which among the following is not the function of testes at puberty?

  • Formation of germ cells
  • Secretion of testosterone
  • Development of placenta
  • Secretion of estrogen
  • (i) and (ii)
  • (ii) and (iii)
  • (iii) and (iv)
  • (i) and (iv)

    Answer: (c) (iii) and (iv)

The correct sequence of organs in the male reproductive system for transport of sperms is

  • Testis → vas deferens → urethra
  • Testis → ureter → urethra
  • Testis → urethra → ureter
  • Testis → vas deferens → ureter

    Answer: (a) Testis → vas deferens → urethra

Which among the following diseases is not sexually transmitted?

  • Syphillis
  • Hepatitis
  • HIV – AIDS
  • Gonorrhoea

    Answer: (b) Hepatitis