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CBSE · Class 10 · Science · How do Organisms Reproduce?Describe the male and female reproductive systems in human beings. Explain the role of various organs in gamete formation and transport.

Step-by-Step Solution

Introduction to Human Reproduction\nHuman beings reproduce through sexual reproduction, which involves the formation and fusion of specialized male and female gametes. The human reproductive system comprises well-developed organs categorized into male and female reproductive systems.

Male Reproductive System\nThe male reproductive system is responsible for producing male gametes (sperm) and delivering them to the female tract. The main organs include:

  • Testes: A pair of oval-shaped organs located in the scrotum outside the abdominal cavity. They produce sperm and the male hormone testosterone. The lower temperature of the scrotum is essential for sperm production.
  • Vas Deferens (Sperm Duct): A tube that carries sperm from the testes to the urinary bladder, where it joins with the urethra.
  • Accessory Glands: Seminal vesicles and prostate gland add secretions to the sperm, providing nutrition and making their transport easier in a fluid medium (semen).
  • Urethra: A common passage for both urine and sperm.
  • Penis: A muscular organ that delivers sperm into the female reproductive tract during copulation.

Female Reproductive System\nThe female reproductive system produces female gametes (ova or eggs), provides the site for fertilization, and nurtures the developing embryo. The main organs include:

  • Ovaries: A pair of almond-shaped organs located in the abdominal cavity. They produce female gametes (ova) and female hormones like estrogen and progesterone. Generally, one egg is produced alternately by one of the ovaries every month.
  • Oviducts (Fallopian Tubes): Tubes that receive the egg released from the ovary and provide the site where fertilization takes place.
  • Uterus (Womb): A muscular, bag-like sac where the fertilized egg gets implanted and develops into a fetus.
  • Cervix and Vagina: The lower part of the uterus opens into the vagina, which serves as the birth canal and the passage for sperm entry.

Conclusion\nBoth systems work in absolute coordination to ensure the continuity of the human species through gamete production, fertilization, gestation, and childbirth.

💡 Study Guide: This question tests core syllabus concepts from How do Organisms Reproduce?. For formulas, key summaries, and mock exam reference guides, read the full How do Organisms Reproduce? Revision Notes.
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