1. Which male reproductive organ produces sperm?
A) Penis
B) Testes
C) Prostate gland
D) Urethra
Answer: B) Testes
2. What is the function of the scrotum?
A) Produce testosterone
B) Store sperm
C) Maintain testes at a suitable temperature
D) Secrete seminal fluid
Answer: C) Maintain testes at a suitable temperature
3. Which hormone stimulates the production of sperm in males?
A) Estrogen
B) Progesterone
C) FSH (Follicle Stimulating Hormone)
D) Oxytocin
Answer: C) FSH (Follicle Stimulating Hormone)
4. The female reproductive organ where fertilization usually occurs is:
A) Ovary
B) Uterus
C) Fallopian tube
D) Cervix
Answer: C) Fallopian tube
5. Which hormone triggers ovulation in females?
A) LH (Luteinizing Hormone)
B) FSH
C) Progesterone
D) Prolactin
Answer: A) LH (Luteinizing Hormone)
6. Which structure stores and releases mature eggs in females?
A) Ovary
B) Fallopian tube
C) Uterus
D) Vagina
Answer: A) Ovary
7. What is the primary function of the uterus?
A) Produce eggs
B) Site for fertilization
C) Provide environment for embryo development
D) Produce hormones
Answer: C) Provide environment for embryo development
8. Seminal vesicles and prostate gland are responsible for:
A) Storing sperm
B) Producing testosterone
C) Secreting fluids that nourish and transport sperm
D) Triggering ejaculation
Answer: C) Secreting fluids that nourish and transport sperm
9. Which process produces gametes with half the number of chromosomes?
A) Mitosis
B) Meiosis
C) Fertilization
D) Cleavage
Answer: B) Meiosis
10. The fusion of sperm and egg is called:
A) Meiosis
B) Fertilization
C) Ovulation
D) Implantation
Answer: B) Fertilization
11. Which part of the male reproductive system transfers sperm into the female reproductive tract?
A) Penis
B) Vas deferens
C) Epididymis
D) Seminal vesicle
Answer: A) Penis
12. Which hormone is primarily responsible for maintaining pregnancy?
A) Estrogen
B) Progesterone
C) LH
D) FSH
Answer: B) Progesterone
13. The female reproductive cycle lasts approximately:
A) 14 days
B) 21 days
C) 28 days
D) 35 days
Answer: C) 28 days
14. Which of the following is NOT a female secondary sexual characteristic?
A) Wider hips
B) Breast development
C) Facial hair growth
D) Distribution of body fat
Answer: C) Facial hair growth
15. Leydig cells in testes are responsible for:
A) Producing sperm
B) Producing testosterone
C) Nourishing sperm
D) Storing sperm
Answer: B) Producing testosterone
16. Which structure connects the testes to the urethra?
A) Epididymis
B) Vas deferens
C) Seminal vesicle
D) Prostate gland
Answer: B) Vas deferens
17. Which phase of the menstrual cycle involves the shedding of the uterine lining?
A) Follicular phase
B) Ovulation
C) Luteal phase
D) Menstrual phase
Answer: D) Menstrual phase
18. The release of an egg from the ovary is known as:
A) Fertilization
B) Ovulation
C) Implantation
D) Menstruation
Answer: B) Ovulation
19. In humans, how many chromosomes are present in gametes?
A) 46
B) 23
C) 92
D) 44
Answer: B) 23
20. Which structure in females serves as the birth canal?
A) Uterus
B) Vagina
C) Ovary
D) Cervix
Answer: B) Vagina
21. The hormone responsible for milk production after childbirth is:
A) Estrogen
B) Progesterone
C) Prolactin
D) Oxytocin
Answer: C) Prolactin
22. Which male reproductive organ surrounds the urethra and contributes to seminal fluid?
A) Seminal vesicle
B) Prostate gland
C) Epididymis
D) Testes
Answer: B) Prostate gland
23. The first cell formed after fertilization is called:
A) Zygote
B) Embryo
C) Blastocyst
D) Fetus
Answer: A) Zygote
24. In which trimester of pregnancy does organ formation occur?
A) First trimester
B) Second trimester
C) Third trimester
D) None
Answer: A) First trimester
25. Which hormone causes the uterus to contract during labor?
A) Progesterone
B) Oxytocin
C) LH
D) FSH
Answer: B) Oxytocin
26. What is the role of fimbriae in the female reproductive system?
A) Produce eggs
B) Move egg from ovary to fallopian tube
C) Support embryo
D) Secrete hormones
Answer: B) Move egg from ovary to fallopian tube
27. The term “menopause” refers to:
A) First menstruation
B) Cessation of menstruation
C) Ovulation
D) Fertilization
Answer: B) Cessation of menstruation
28. Which structure protects and nourishes the developing fetus?
A) Amniotic sac
B) Placenta
C) Uterus
D) Cervix
Answer: B) Placenta
29. Sperms mature and are stored in:
A) Seminiferous tubules
B) Epididymis
C) Testes
D) Prostate gland
Answer: B) Epididymis
30. The hormone that stimulates development of male secondary sexual characteristics is:
A) Progesterone
B) Estrogen
C) Testosterone
D) FSH
Answer: C) Testosterone