Multiple Choice Questions (MCQ’s) 1. Accessory glands of male reproductive system are (a) Prostate and seminal vesicles (6) Prostate, Bartholin’s and seminal vesicles (©) Seminal vesicles and Bartholin’s (@ Prostate, Cowper's and seminal vesicles 2. Role of Leydig cells of testis is (@) Provide nourishment to sperms . (0) Provide motility of sperms (©) Bring about maturation of sperms (@ Synthesis of testosterone hormone 3. Lower narrow end of uterus is called (a) wethra (6) Cervix (© Clitoris (@) Vulva 4, Which group represents external genitalia of human female? (a) Labium minora, labium majora, vagina (6) Labium majora, labium minora, oviduct (©) Labium minora, labium majora, cervix (@ Labjum majora,labiumn minora, clitoris 5, Hormone responsible for ovulation and development of cropus lutem is (@) FSH (0) LH ©LTH (@ Prolactin 6. Egg is liberated from ovary and enters the fallopian tube in (a) Secondary ooeyt.siage (0) Primary oocyte stage ‘A Class Book of Biology - 2Jeevith Publications 38 (¢) Oogonial stage (@) Mature ovum stage 7. During spermatogenesis, meiosis occurs in (@) Primary spermatocytes (b) Secondary spermatocytes (©) Both(a) & (b) (@) Spermatogonia 8. Spermiogenesis changes (@) Spermatogonium to primary spermatocytes (b) Primary spermatocytes to secondary spermatocytes (c) Secondary spermatocytes to spermatids (d) Spermatids to sperms 9, In spermatogenesis, a primary spermatocyte produces four similar sperms while in oogenesis a primary oocyte forms (@) Four similar ova (b) Three large ova and one polar body (©) Two large ova and two polar bodies (@) One large ova and 2-3 polar bodies 10, Minute cells separating from ova are (@) Primary oogonia (b)Polar bodies (©) Secondary oogonia (@ Primary spermatogonia 11, What are the diploid stages in spermatogenesis ? (a) Spermatogonia and spermatids (b) Spermatogonia and primary spermatocytes (©) Spermatogonia and sperms (4) primary spermatocytes and secondary spermatocytes 12. Which of the following structures produces energy for the motility of mature sperm (a) Nucleus in head region : (b) Mitochondria in head region (©) Axial filament in tail (@ Mitochondria in middle piece 13. In menstrual cycle of 28/29 days, ovum is released during (a) Beginning of the cycle * (b) Middle of the cycle (0) End of the cycle (@ Any time during the cycle 14, Loss of reproductive capacity in women around the age of 50 years is (@) menstruation (b) Ageing (©) ménopause (@) Menarche 15, LH surge occurs during which phase of menstrual cycle? (@) Mestrual’phase (b) Beginning of proliferative phase (©) Secretory phase (4) At the middle of the cycle 16; Oestrous cycle is the characteristic of (@) Human females (6) Mammalian females (c) Mammalian females other thian primates (@) Primate females 17. Which hormone level reaches peak during the luteal phase of menstrual cycle? (a) Luteinising hormone _(b) Progesterone (FSH (@ Estrogen 18. Site of fertilization in a mammal is (@) Ovary (b) Uterus (©) Vagina (@) Ampulla part of Fallopian tube 19, During embryonic development, which of the following organs is formed first? (a) Heart (b) Brain (© Neural tube (@ skin 20. Foetal ejection reflex in human female is induced by (a) Release of oxytocin from pituitary gland (b) Pressuré exerted by amniotic fluid (©) Differentiation of mammary glands (@) Fully developed foetus and placenta 21, Which cells provide nutrition to the germ cells? (2) Sertoli cells (b)Spermatogonia __(¢) Interstitial cells_-_(d) Leydig cells A Class Book of Biology - 2ducts? (6) EP’ iaidynis 22. Which of the following is not included in aceon Rete testis (a) Vas deferens ) uae ie @ tissue 23. Meee duets join and et a mamm (o) ampulla a 2, Ylw ht appear ate cr of brea ete (@) colostrum @ Galactation 25. Production of milk is called (a) Lactation (b) Galactorrhea 26. The sex of the human baby is male if (a) sperm has X chromosome (©) ovum has X chromosome 27. What is the outer layer of blastocyst called? (g) Blastomere (b) Trophoblast 28. Eight to sixteen cell stage embryo is called (@) Blastomere (b) Zygote 29. The cavity present in the blastula is called (@) Coelom (b) Fluid 30. First foetal movements can be observed during (@) first month of pregnancy (©) second trimester (c) Lactorrhea hI some erm has Y chromo: (&) sperm Bs 7 Spromosome (ovum (0) Blastocoel (d) Inner cell mass () Blastula (@ Morula (@) Blastopore (©) Blastocoel (b) frst trimester (@) third trimester 31. Vigorous contractions of the uterus during parturition are induced by (a) neuroendocrine mechanism (©) embryo pushing out (b) endocrine mechanism (@) uterine fluids 32. Which of the following hormone is not produced by the placenta? (@) Relaxin (b) Estrogen (©) Progesterone (@) bPL Fill in the blanks by choosing the appropriate word | words | those given below (Prostrate gland, Relaxin, Fimbriae, Oxytocin, Ampulla 1, The unpaired reproductive structure in human males ign oor BAN) Fertilisati The finger-like projections on the edges of infundibulum of oviduct ar human females occurs in-—-——— "e called--—___ Hormone secreted by the ovary in the later phase of Pregnancy i is—___ va YY The hormone helps in parturition———_ Exercises of the NCERT Text Book ( Fill in the BI lanks) 1. Humans reproduce (asexually/sexualty) (oviparous, in humans (externavinternal) 2. Humans are viviparous, ovoviviparous) * 4. Male and female gametes are ————iploidmap toi, id) 5. Zygote is (diploid/haploiay A Class Book of Biology - 2Jeevith Publications 37 6. The process of release of ovum from 2 mature follicle is called 7. Ovulation is induced by a hormone called 8. The fusion of male and female gametes is called 9. Fertilisation takes place in 10. Zygote divides to form which is implanted in uterus. 11. The structure which provides vascular connection between foetus and uterus is called Answer keys 6 {718 {9 [10 [ai [a2 [a3 [14 [as fer 2 | eae [raisins gdialo{djboefajelal[a/o]/b{/alfo}lela 1617 _| 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 em Bat Wee awl) at etl Eb | ecal| Pad | eae Mba ebe deen |e 31) 32 [ea [a] Cetat oT I I Answer keys (Fill in the Blanks) . Prostate gland 2. Fimbriae 3. Ampullary 2. Relaxin 5. Oxytocin Answer Keys (NCERT - Fill in the Blanks) 1. Sexually 2. Viviparous 3. Internal 4.Haploid’ 5. Diploid 6. Ovulation 7. Human Chorionic Gonadotropin (HCG) 8. Fertilization 9. Fallopian tube 10. Blastocyst 11. Placenta