Kerala Syllabus SAMAGRA SCERT SAMAGRA Question Pool for Class 12 Biology Human Reproduction
Ovarian hormone levels of Menstrual cycle given below.
(a).Draw the graph of pituitary hormone level in associated with menstrual cycle.
(b).Mention the changes occures in ovary and uterus after menstruation
Analyse the words given below and arrange them in two headings
( Vas deferens,Vagina,Epididymis ,Common ejaculatory duct , fimbriae,fallopian tube)
Parts of male reproductive Compare spermatogenesis and spermiogenesis. Compare spermatogenesis and oogenesis 250 primary spermatocytes produced in testes .Write the No of spermatids produced from these primary spermatocytes. 1000 spermatids Observe the process of gametogenesis given below. Answer the following questions. (a).Identify the gametogenesis (b).Identify 'A' and 'B'. (c).Compare the chromosome numbers of cell 'A” and cell 'B'. (a).Spermatogenesis (b).A-Primary spermatocyte B- Secondary spermatocyte . (c).chromosomenumber in A-46 , Draw a flow chart which shows the path of milk from the alveoli to the mouth of the child. Alveoli - mammary tubule - mammary duct - mammary ampula- lactiferous Hymen is not a reliable indicator for virginity. Do you agree with the statement? Give reasons. Hymen broken down due to- 1.sudden fall or jolt 2.insertion of vaginal tampon 3.active participation in sports like horse back Perimetrium is the outermost layer of uterus. (a).Give the names of innermost and middlelayer of uterus. (b).Explain the functions of these layers. (a). innermost – Endometrium, middle layer -Myometrium (b). Endomerium -implantation occurs , Myometrium-muscular Ovum is non motile. (a).Name the part of fallopian tube which collect the released ovum . (b).Identify the tissue found at the internal lining of the fallopian tube (c). Write the role of ciliated epithelium (a).Fimbriae (b).Ciliated epithelium (c).Help the movement of ovum towards Write the parts of female reproductive system A pair of ovaries Fallopian tubes Uterus Cervix Vagina External (a).Name the hormone produced from testes. (b).Name the cells which secrete this hormone. (a).Testosteron (b).Leydig (a).Name the paired accessory glands associated with male reproductive system. (b).Write its function (a).Seminal vesicle and bulbourethral gland (b).Seminal plasma which is rich in fructose ,calcium and certain enzymes . Secretions of Make a flow chart showing the path way of movement of sperms from testis Rete testis------ vas efferentia-----epididymis -----vas deferens -----common ejaculatory duct Seminiferous tubules of testes possess two different types of cells . (a).Identify these cells. (b).Write the significance of these cells . (a).Gamete cells and sertoli cells. (b).Gamete cells – develop as sperm Sertoli cells – nourishment to Each testes has 250 compartments.The compartments are called .............. Testicular lobules Testes are the primary organ for reproduction in male organism. (a).Name the pouch in which testes located. (b).Explain it's significance (a).Scrotum (b).Maintains low temperature for Seminiferous tubules of testes possess two different types of cells . (a).Identify these cells. (b).Write the significance of these cells . (a).Gamete cells and sertoli cells. (b).Gamete cells – develop as sperm Sertoli cells – nourishment to developing Each testes has 250 compartments.The compartments are called .............. Testicular lobules Testes are the primary organ for reproduction in male organism. (a).Name the pouch in which testes located. (b).Explain it's significance (a).Scrotum (b).Maintains low temperature for Observe the diagram. (a).Identify the parts 'A' ,'B','C' and 'D' (c).Name two contraceptives used to insert to the part D to block the entry of sperms Scoring indicators : (a).A-Endometium B- Fallopian tube C- Ovary D- cervix (b).Cervical cap ,Diaphragm Complete the following. Hormone Action Prolactin .............................................. ....................................... Keeping pregnancy ....................................... Secondary sexual characters of male a.Seminal plasma contains different types of substances. Identify them. b.Write the function of bulbo urethral gland a.Rich in fructose ,calcium and certain enzymes. b.helps in the lubrication of the The release of ovum is called .................................... Ovulation The first menstruation begins at puberty and is called ................. Menarche Menstrual cycle is the reproductive cycle of ......................... Female primates (a).Name the different phases of menstrual cycle indicated as A ,B & C. (b).Write the function of progesterone (a). A. Menstrual phase B.Follicular phase or proliferative phase C.Luteal or Secretory phase (b). Maintains Name the three layers of uterus.Write their functions Endometrium - Inner glandular Name the finger like projections found at the edges of infundibulum.Write its function. Fimbriae. Which helps in collection of the ovum after Differentiate infundibulam, Ampulla and Isthmus. Infundibulam : The funnel shaped part of the oviduct which is closer to the ovary. Ampulla : The infundibulum leads to a wider part of the oviduct called Name the accessory ducts of female reproductive system Fallopian tube ,uterus,vagina Each ovary is covered by a thick epithelium which encloses the ovarian stroma.Name the two zones of stroma. Peripheral cortex and inner medulla Fill in the blanks using the words or sentences given below. (Gametogenesis,Fusion of male and female gamets,implantation,parturition ,the development of embryo,Transfer of sperms into the female genital part) Formation of gametes ............................a............................... .............................b ........................... Insemination .............................c ........................... Fertililization Attachment of blastocyst into the uterine wall .............................d.............................. ............................e............................ Gestation Delivery of a baby .............................f .............................. Formation of (a).Name the primary female sex organ (b).Write its function. (a) .Ovary (b).Produce female gamete or Ovum and several steroid Identify the components of seminal plasma. Which contains fructose,calcium and certain Name the secretion produced from male reproductive glands. Seminal plasma Name the glands associated with male reproductive system. Seminal vesicles,Prostate glands,Bulbo urethral The regions outside the seminiferous tubules called interstitial spaces, which contains small blood vessels and ................... cells. Interstitial cells of leydig or Leydig Write the functions of :- (a).Male gamete cells (spermatogonia) (b).Sertoli cells (a). They undergoes divisions and produce male gamete or sperms. (b).They give protection and nourishment to the developing Each seminiferous tubule is lined on its inside by two types of cells called ............... and ........... Male gamete cells (spermatogonia) and sertoli The sperms are produced in highly coiled tubules present in testes which is called ..................... Seminiferous tubules Each testis has about 250 compartments called ................... Testicular lobules The testes are situated outside the abdominal cavity within a pouch called scrotum. Write its significance. The scrotum helps in maintaining the low temperature of the testes ie, 2 - 2.5 oC lower than normal internal body Identify the parts of male reproductive system from the following ( Ovaries ,Testis,Oviducts,Uterus,Accessory ducts,Cervix,Vagina,glands,External genitalia) Testis,Accessory ducts,Glands,External List the functions of LH and FSH in males LH : Acts on leydig cells and stimulate the synthesis and secretion of androgen Androgen stimulate the process of spermatogenesis FSH : Acts Differentiate menarche and menopause Menarche : First menstruation begins at puberty. Menopause : Menstrual cycles ceases around 50 years of age; that is termed as Make a flow chart showing the embryonic development using the terms given in brackets (Blastula,Morula, embryo Zygote ,cleavage,implantation) (a).Identify the figure (b).Label Graafian follicle and corpus luteum Name the hormone stimulate stronger uterine contractions during parturition Oxytocin The placenta and foetus induces signals for mild uterine contractions during parturition are called ............................. Foetal ejection reflex |