Test-MCQ Class 10-NCERT -Science-Chapter 8-Test-3 Chapter 8: How do Organisms Reproduce? Multiple Choice Questions No of Questions : 15 Marks: 15 Please enter your email: 1. Which of the following statements are true for flowers? (i) Flowers are always bisexual (ii) They are the sexual reproductive organs (iii) They are produced in all groups of plants (iv) After fertilisation they give rise to fruits (i) and (iii) (ii) and (iv) (ii) and (iii) (i) and (iv) 2. Which among the following statements are true for unisexual flowers? (i) They possess both stamen and pistil (ii) They possess either stamen or pistil (iii) They exhibit cross pollination (iv) Unisexual flowers possessing only stamens cannot produce fruits (iii) and (iv) (ii), (iii) and (iv) (i) and (iv) (i), (iii) and (iv) 3. Which among the following statements are true for sexual reproduction in flowering plants? (i) It requires two types of gametes (ii) Fertilisation is a compulsory event (iii) It always results in formation of zygote (iv) Offspring formed are clones (i), (ii) and (iv) (i) and (iv) (i), (ii) and (iv) (i), (ii) and (iii) 4. In Figure the parts A, B and C are sequentially plumule, cotyledon and radicle plumule, radicle and cotyledon radicle, cotyledon and plumule cotyledon, plumule and radicle 5. Offspring formed as a result of sexual reproduction exhibit more variations because genetic material comes from many parents genetic material comes from two parents of different species genetic material comes from two parents of the same species sexual reproduction is a lengthy process 6. Reproduction is essential for living organisms in order to fulfill their energy requirement keep the individual organism alive continue the species generation after generation maintain growth 7. In human females, an event that reflects onset of reproductive phase is menstruation changes in hair pattern change in voice growth of body 8. In human males, the testes lie in the scrotum, because it helps in the easy transfer of gametes process of mating formation of sperm all the above 9. Which among the following is not the function of testes at puberty? (i) formation of germ cells (ii) secretion of testosterone (iii) development of placenta (iv) secretion of estrogen (i) and (iv) (iii) and (iv) (i) and (ii) (ii) and (iii) 10. The correct sequence of organs in the male reproductive system for transport of sperms is testis → ureter → urethra testis → vasdeferens → ureter testis → vasdeferens → urethra testis → urethra → ureter 11. Successfully grafted plants bear the flowers and fruits characteristic of the ? Mixture of scion and stock None of the any Stock Scion 12. The first menstrual bleeding in human females is called as ovulation fementation menarche menopause 13. Mature sperms ate stored in Vas deferens seminiferous Seminal vesicles epididymis 14. Horizontal underground stems with scale leaves are called : Rhizomes Corms Bulbs Stem tubers 15. sexual reproduction can be grouped into___distinct stages ? Three Two Five One Please Enter Your Name, School Name & Class in the given below box and submit: ( results will be shown after submit, within few moments on this page ) Loading … Question 1 of 16
