HIGH SCHOOL: BIOLOGY ANIMAL REPRODUCTION Page: 722-739 NAME: _______________ DATE: _________ 1. Label the parts in male reproductive system 2. Draw a neat labeled diagram of a human sperm cell. MALE REPRODUCTIVE SYSTEM 1. There are 2 testes situated in a sac called the ____________. 2. Testes produces male gametes in large numbers in __________________ 3. The male sex hormone produced by testes is called ___________, which regulates sperm production and secondary sexual characteristics (e.g. ______________________) 4. The time at which boys begin to produce sperm and to have body changes is called ____________. 5. _______________ stores the sperm in large numbers until they are passed out through the penis. 6. __________ transports sperm from the testes to urethra. 7. Semen producing glands are ________________, _______________, and ____________ 8. Semen is the fluid produced to protect the _______________ from dehydration and the acidic environment of the female __________ after sexual intercourse. 9. The urethra is the tube inside the _________ 10. The tube that carries the urine from the urinary bladder is ___________ Multiple Choice Questions 1. The type of reproduction where two reproductive cells join to form one cell that grows into a new organism is: A. sexual B. asexual C. parthenogenesis 2. The time when teenage boys begin to produce sperm is called: A. menopause B. maleopause C. puberty 3. The male gamete is the: A. sperm B. egg C. pollen grain 4. The male gonad is the: A. testis B. testicle C. both of the above 5. A secondary sexual characteristic of males is: A. deep voice B. pubic hair C. both of the above 6. The male sex hormone is: A. oestrogen B. testosterone C. adrenaline 7. The sac containing the testes is the: A. scrotum B. seminal vesicle C. urethra 8. The vas deferens is also known as the: A. epididymis B. prostate gland C. sperm duct 9. The fluid containing sperm is: A. semen B. scrotum C. testosterone 10. The erection of the penis is caused by: A. the spongy cell within the penis filling with blood before sexual intercourse B. the hinged movement of the penis bone C. the filling of the penis with semen containing sperm True-False Questions 11. Semen is slightly alkaline to protect sperm from slightly acidic vaginal secretions after sexual intercourse. 12. The release of sperm during sexual intercourse is called ejaculation. 13. The seminal glands both produce semen and block the release of urine from the bladder during intercourse. 14. Semen protects the sperm from dehydration. 15. All sperm produced fertilise the egg. ANSWER THE FOLLOWING 1. Why does the scrotum hang outside the body? 2. What 2 substances travel at different times through the urethra? 3. What are the 3 types of semen-producing glands? HIGH SCHOOL: BIOLOGY ANIMAL REPRODUCTION Page: 722-739 NAME: _______________ DATE: _________ 1. Draw a neat labeled diagram of a female reproductive system PARTS OF THE FEMALE REPRODUCTIVE SYSTEM 1. Ovary produces the female sex hormones ___________ and _____________ that regulate the menstrual cycle, pregnancy and the secondary sexual characteristics (e.g. _________________) 2. _________________ is the time when females stop releasing eggs. This usually occurs between 45 to 55 years of age. 3. After puberty and before menopause, one egg is released about every _______ days from each ovary. 4. ____________ or ________ connects between ovary and _________ 5. ______________ is where conception or fertilization of an egg by a sperm occurs. 6. The part of the female reproductive tract where the fetus develops is ___________ 7. The inner lining of the uterus is called _____________ 8. The opening between the uterus and vagina is __________ 9. _____________ is also called birth canal 10. The oocyte with the surrounding accessory cells make up ___________ THE FEMALE MENSTRUAL CYCLE 1. The menstrual cycle begins at and ceases at menopause. 2. It takes about days. 3. Menstruation is regulated by the female sex hormones, oestrogen and 4. A woman will become pregnant if fertilisation (the of the egg and the sperm) occurs several days after ovulation when the egg is in the fallopian tube. During pregnancy, menstruation 5. Role of hormones in the menstrual cycle - The Hypothalamus in the brain stimulates the pituitary gland in the brain to produce the hormone FSH (Follicle-Stimulating Hormone). FSH stimulates the growth of an egg in the ovary. The follicle in the ovary secretes oestrogen which stimulates the repair of the uterus wall after and it also stimulates the pituitary gland to produce LH (Lutinizing Hormone). This prevents more than one follicle from developing. LH induces ovulation (release of the ) and the development of the follicle into the corpus . The corpus luteum secretes progesterone. If a female becomes pregnant, the corpus luteum will secrete gonadotrophin which allows the corpus luteum to continue producing progesterone which stimulates the growth of the uterus wall, by inhibiting LH and FSH. If the woman does not become pregnant, the corpus luteum , which leads to less production of progesterone and oestrogen, and menstruation will occur, and another menstrual cycle begins because the lower progesterone and oestrogen levels will stimulate the gland in the brain to produce FSH. Multiple Choice Questions 1. The time at which a young woman begins to mature and release eggs is: A. puberty B. menopause C. oestrus 2. The time when an older woman ceases to release eggs is: A. puberty B. menopause C. femaleopause 3. The female gamete is the: A. ovum B. egg C. both of the above 4. The female gonad is the: A. uterus B. ovary C. cervix 5. The oviduct is also known as the: A. fallopian tube B. uterus C. vagina 6. Conception or fertilisation occurs in the: A. fallopian tube B. ovary C. vagina 7. Days 1 to 5 of the menstrual cycle are known as: A. ovulation B. implantation C. menstruation 8. The time at which an ovum is released from the ovary is called: A. menstruation B. ovulation C. menopause 9. The female sex hormones are: A. insulin and glucagon B. testosterone and adrenaline C. oestrogen and progesterone 10. Another name for the womb is the: A. testis B. uterus C. ovary ANSWER THE FOLLOWING 1. What are the organs through which an egg travels in a woman who is not pregnant? 2. What barrier prevents the invasion of disease-causing organisms if a woman is pregnant? 3. Reorder these terms in correct chronological order – fertilisation, sexual intercourse, ovulation, zygote, foetus, birth, embryo implantation, development of placenta and umbilical cord 4. How many chromosomes are there in an ovum, a sperm cell, a zygote and a normal body cell? HIGH SCHOOL: BIOLOGY ANIMAL REPRODUCTION Page: 722-739 NAME: _______________ DATE: _________ ANSWER THE FOLOWING 1. Briefly explain spermatogenesis with the help of a diagram 2. With the help of this diagram explain the process of oogenesis 3. Make use of the above diagrams and describe the role of hormones during the menstrual cycle. (Refer Text book Page 732) 4. Distinguish between spermatogenesis and oogenesis. 5. Functions of corpus luteum, uterus 6. Describe any four methods of contraceptive techniques. Answers 1.A 2.B 3.C 4.B 5.A 6.A 7.B 8.C 9.B 10.C 11. ovary, fallopian tube, uterus, cervix, vagina 12. A mucous plug grows across the cervix during pregnancy. 13. ovulation, sexual intercourse, fertilisation, zygote, embryo implantation, development of placenta and umbilical cord, foetus, birth 14. 23, 23, 46, 46 15. Act as a protective buffer against the woman’s movements Male Reproductive system 1.A 2.C 3.A 4.C 5.C 6.B 7.A 8.C 9.A 10.A 11.T 12.T 13.F 14.T 15.F The scrotum is the sac containing the testes that produce. Healthy sperm must be produced at a temperature slightly lower than internal body temperature. Urine, and semen containing sperm Cowper’s gland, seminal vesicle, prostate gland