Questions About the Male Reproductive Organs and Development
Multiple-Choice Questions: Male Reproductive Organs and Development
1. What is the primary function of the testes?
A) Store urine
B) Produce testosterone and sperm
C) Secrete digestive enzymes
D) Filter blood
E) Maintain blood pressure
2. Where are sperm cells produced?
A) Prostate gland
B) Epididymis
C) Vas deferens
D) Seminiferous tubules
E) Seminal vesicles
3. Which hormone is primarily responsible for the development of male secondary sexual characteristics?
A) Estrogen
B) Progesterone
C) Testosterone
D) Cortisol
E) LH
4. What is the role of the epididymis?
A) Produce sperm
B) Store and mature sperm
C) Produce testosterone
D) Transport urine
E) Secrete hormones
5. Which structure carries sperm from the epididymis to the urethra?
A) Ureter
B) Vas deferens
C) Seminal vesicle
D) Prostate gland
E) Cowper's gland
6. What is the function of the seminal vesicles?
A) Urine production
B) Oxygen transport
C) Secretion of a fluid that nourishes sperm
D) Sperm production
E) Hormone regulation
7. Which gland surrounds the urethra and contributes to semen production?
A) Pancreas
B) Adrenal gland
C) Pituitary gland
D) Prostate gland
E) Thyroid gland
8. What is the function of the bulbourethral (Cowper's) glands?
A) Store urine
B) Lubricate the urethra
C) Secrete testosterone
D) Absorb nutrients
E) Filter lymph
9. The scrotum is important because it:
A) Provides immunity
B) Warms the testes
C) Maintains proper temperature for sperm production
D) Stores sperm permanently
E) Transports blood
10. Which structure is shared by both the reproductive and urinary systems in males?
A) Vas deferens
B) Seminal vesicle
C) Urethra
D) Epididymis
E) Testes
11. During puberty, which hormone stimulates testosterone production in males?
A) ACTH
B) Oxytocin
C) LH (Luteinizing Hormone)
D) FSH
E) TSH
12. What is the role of FSH (Follicle-Stimulating Hormone) in males?
A) Stimulates prostate growth
B) Causes hair loss
C) Stimulates sperm production
D) Regulates blood sugar
E) Increases metabolism
13. At what stage of development do the testes typically descend into the scrotum?
A) Infancy
B) Puberty
C) At birth or shortly before
D) Adolescence
E) Age 2–3
14. What is cryptorchidism?
A) Inflammation of the penis
B) Overproduction of sperm
C) Failure of one or both testes to descend
D) Hormonal imbalance
E) Excess testosterone production
15. Which part of the sperm contains enzymes to penetrate the egg?
A) Midpiece
B) Tail
C) Nucleus
D) Acrosome
E) Centriole
16. What is the main energy source for sperm motility?
A) Glucose from blood
B) ATP from the mitochondria in the midpiece
C) DNA from the nucleus
D) Lipids from the tail
E) Oxygen from red blood cells
17. What is semen?
A) Pure sperm cells
B) Hormones and red blood cells
C) A mixture of sperm and secretions from accessory glands
D) White blood cells and lymph
E) Mucus only
18. What age range typically marks the onset of puberty in males?
A) 4–6 years
B) 7–9 years
C) 10–14 years
D) 16–20 years
E) 21–25 years
19. What structure helps move sperm through the vas deferens during ejaculation?
A) Cartilage
B) Cilia
C) Peristaltic muscle contractions
D) Bone movement
E) Hair follicles
20. Which of the following is a male secondary sexual characteristic?
A) Increased breast tissue
B) Narrow shoulders
C) Facial hair growth
D) Ovary development
E) Menstruation
- Questions on Excretory System: characteristics, kidneys, and diseases
- Questions on Immune System
- Questions About Lymphatic System
Answer Key with Explanations
1. B – The testes produce sperm and secrete the hormone testosterone.
2. D – Sperm are produced in the seminiferous tubules within the testes.
3. C – Testosterone is responsible for male secondary sexual characteristics like facial hair and deep voice.
4. B – The epididymis stores and allows sperm to mature before ejaculation.
5. B – The vas deferens transports sperm from the epididymis to the urethra.
6. C – Seminal vesicles secrete fructose-rich fluid that nourishes sperm.
7. D – The prostate gland encircles the urethra and adds fluid to semen.
8. B – The bulbourethral glands secrete a lubricating mucus before ejaculation.
9. C – The scrotum maintains the testes at a temperature slightly below body temperature, crucial for sperm production.
10. C – The urethra carries both urine and semen in males.
11. C – LH stimulates the Leydig cells in the testes to produce testosterone.
12. C – FSH acts on Sertoli cells to stimulate spermatogenesis.
13. C – Testes typically descend into the scrotum late in fetal development or at birth.
14. C – Cryptorchidism is the condition where one or both testes fail to descend.
15. D – The acrosome contains enzymes that help sperm penetrate the egg’s outer layers.
16. B – Mitochondria in the midpiece generate ATP for sperm movement.
17. C – Semen is a mix of sperm and secretions from the seminal vesicles, prostate, and Cowper's glands.
18. C – Puberty in males generally starts between ages 10 and 14.
19. C – Peristaltic contractions of smooth muscle help move sperm during ejaculation.
20. C – Facial hair is a secondary sexual characteristic in males due to testosterone.
Dive into the groundbreaking science of neurotransmitters—your brain’s invisible architects—in Chemical Harmony: How Neurotransmitters Shape Our Lives (2025). This meticulously researched book reveals how serotonin, dopamine, GABA, and other brain chemicals silently orchestrate every aspect of your existence, from decision-making and relationships to mental health and emotional resilience.Click here to buy
👉 +3000 Biology Questions with Answers Key.
Share Online!
