ICSE Class 10

General instructions: Answer all questions. Marks are shown in brackets [ ].

Objective

1. 1.
   Fertilization takes place in

   1. A. uterus
   2. B. oviduct
   3. C. vagina
   4. D. fimbriae
   [1]
2. 2.
   Which of the following statements correctly defines gestation?

   1. A. The process of fixing the zygote to the uterine wall.
   2. B. The period of intrauterine development of the embryo.
   3. C. The fusion of egg and sperm nuclei.
   4. D. The release of the ovum from the ovary.
   [1]
3. 3.
   Surgical method of sterilization in a woman involves cutting and tying of:

   1. A. Ureter
   2. B. Uterus
   3. C. Urethra
   4. D. Oviduct
   [1]
4. 4.
   A zygote which has Y chromosome inherited from the father will develop into a:

   1. a. Will depend on the chromosome inherited from the mother
   2. b. Girl
   3. c. Either boy or a girl
   4. d. Boy
   [1]
5. 5.
   Which of the following are the primary functions of the testis?

   1. A. To produce ova and female sex hormones
   2. B. To produce sperms and male sex hormones
   3. C. To store urine and regulate body temperature
   4. D. To produce digestive enzymes and insulin
   [1]
6. 6.
   Sperms are produced in

   1. A. seminiferous tubules
   2. B. epididymus
   3. C. vasa efferentia
   4. D. leydig cells
   [1]
7. 7.
   A single highly coiled tube where sperms are stored, get concentrated and mature is known as

   1. a. vas efferentia
   2. b. epididymis
   3. c. vas deferens
   4. d. seminiferous tubule
   [1]
8. 8.
   In the human male, through which sequence of regions does a mature sperm travel from the seminiferous tubules up to the urethral opening?

   1. A. Seminiferous tubules → epididymis → vas deferens → ejaculatory duct → urethra
   2. B. Seminiferous tubules → vas deferens → epididymis → ejaculatory duct → urethra
   3. C. Seminiferous tubules → epididymis → urethra → ejaculatory duct → vas deferens
   4. D. Seminiferous tubules → ejaculatory duct → vas deferens → epididymis → urethra
   [1]
9. 9.
   Ideal contraceptive should not be

   1. A. User-friendly
   2. B. Effective
   3. C. Easily available
   4. D. Expensive
   [1]
10. 10.
    Why is the placenta an important structure for the development of a foetus?

    1. A. It produces hormones that regulate foetal growth.
    2. B. It allows the exchange of nutrients, gases, and waste products between mother and foetus.
    3. C. It protects the foetus from physical injury.
    4. D. It stores nutrients for the foetus during gestation.
    [1]
11. 11.
    Which of the following is the odd one out in the list

    1. A. Fertilization
    2. B. Implantation
    3. C. Sperm
    4. D. Gestation
    [1]
12. 12.
    How many mature eggs are typically produced by each ovary of a non-pregnant woman in a year?

    1. A. 12
    2. B. 6
    3. C. 24
    4. D. 1
    [1]
13. 13.
    Which of the following correctly differentiates the structure of sperm from that of the ovum?

    1. A. Sperm are round and non-motile; ova are motile with a tail.
    2. B. Sperm are motile with a head, neck, middle piece, and tail; ova are non-motile and round.
    3. C. Sperm and ova are both motile and structurally identical.
    4. D. Sperm are larger than ova and non-motile.
    [1]
14. 14.
    What are the primary functions of the sperm duct and the fallopian tube?

    1. A. Sperm duct: Produces sperm, Fallopian tube: Stores eggs
    2. B. Sperm duct: Transports sperm, Fallopian tube: Site of fertilization
    3. C. Sperm duct: Site of fertilization, Fallopian tube: Transports sperm
    4. D. Sperm duct: Secretes hormones, Fallopian tube: Produces eggs
    [1]
15. 15.
    Which of the following correctly describes the nature of secretion from the prostate gland and Cowper's gland?

    1. A. Prostate: Acidic, Cowper’s: Lubricant
    2. B. Prostate: Alkaline, Cowper’s: Lubricant
    3. C. Prostate: Lubricant, Cowper’s: Alkaline
    4. D. Prostate: Enzymes, Cowper’s: Hormones
    [1]
16. 16.
    In the formation of test tube babies, what is the key process that occurs outside the mother's body?

    1. A. Implantation of the embryo into the uterus.
    2. B. Fertilization of the egg by the sperm in a test tube.
    3. C. Development of the foetus to full term.
    4. D. Maturation of the egg in an artificial ovary.
    [1]
17. 17.
    Which of the following sequences correctly represents the path of the ovum from the ovary to the uterus?

    1. A. Graafian follicle, ostium, ovum, fallopian tube, uterus
    2. B. Graafian follicle, ovum, ostium, fallopian tube, uterus
    3. C. Ovum, Graafian follicle, ostium, uterus, fallopian tube
    4. D. Ostium, Graafian follicle, ovum, uterus, fallopian tube
    [1]
18. 18.
    In the human female reproductive system, a maturing egg is initially present in a sac of cells called ______ (1). This sac enlarges and fills with fluid to become the ______ (2) follicle. The release of the egg from the ovary is termed ______ (3), and fertilization typically occurs in the ______ (4). The process where the blastocyst attaches to the endometrium is known as ______ (5).

    1. A. (1) Graafian follicle, (2) Primary, (3) Ovulation, (4) Uterus, (5) Implantation
    2. B. (1) Follicle, (2) Graafian, (3) Ovulation, (4) Oviduct, (5) Implantation
    3. C. (1) Corpus luteum, (2) Secondary, (3) Menstruation, (4) Ovary, (5) Fertilization
    4. D. (1) Follicle, (2) Tertiary, (3) Ejaculation, (4) Cervix, (5) Gestation
    [1]
19. 19.
    Complete the following table by identifying the correct function or structure for each given entry:

    Structure	Function
    1. Corpus luteum	1. What is its function?
    2. Which structure produces male gametes in mass?	2. Produces male gametes in mass
    3. Placental disc	3. What is its function?
    4. Which hormone increases the force in uterine contraction?	4. Increases the force in uterine contraction
    5. Umbilical cord	5. What is its function?
    6. Fallopian tube	6. What is its function?

    Which of the following correctly identifies the function of the **corpus luteum**?

    1. A. Produces progesterone to maintain pregnancy
    2. B. Secretes estrogen to stimulate ovulation
    3. C. Releases follicle-stimulating hormone (FSH)
    4. D. Facilitates the exchange of nutrients between mother and foetus
    [1]
20. 20.
    What are the primary functions of the corpus callosum and the corpus luteum?

    1. A. Corpus callosum: Connects brain hemispheres, Corpus luteum: Secretes progesterone
    2. B. Corpus callosum: Secretes estrogen, Corpus luteum: Connects brain hemispheres
    3. C. Corpus callosum: Produces sperm, Corpus luteum: Produces eggs
    4. D. Corpus callosum: Filters blood, Corpus luteum: Stores nutrients
    [1]