CBSE Class 12 Biology Human Reproduction Revision Notes, 2023-24: Download PDF

Human Reproduction CBSE Notes: There is not much time left in the exams and thus students should start preparing for them. This time, the exam pattern will follow the revised CBSE syllabus. The 2023 revision notes for CBSE Class 12 Biology will be an effective choice for students to revise the whole syllabus quickly.

Human reproduction is an important chapter of CBSE Class 12 Biology. This chapter also covers the syllabus of NEET. The revision notes provided in this article will be beneficial in preparing students for their CBSE Class 12, 2024 board exams as well as for NEET preparations. The diagrams provided will be of great help in understanding the notes. Read and download these CBSE revision notes to prepare for CBSE Class 12 Biology board exams 2024.

CBSE Class 12 Biology Chapter 2 Revision Notes

The Class 12 biology revision notes PDF is attached at the tail of this article. These CBSE Class 12 biology short notes or revision notes will give you a quick overview of Human Reproduction, class 12 Biology Chapter 2. These revision notes will also work as NEET preparation notes.

Chapter: Human Reproduction

Introduction:

• Human reproduction is the process by which new individuals of the same species are produced.
• It involves the fusion of male and female gametes to form a zygote, which develops into an embryo and eventually a fetus.

Male Reproductive System:

• The male reproductive system consists of testes, epididymis, vas deferens, seminal vesicles, prostate gland, and penis.
• The testes produce sperm through spermatogenesis, which occurs in the seminiferous tubules.
• Sperms are stored and matured in the epididymis.

Female Reproductive System:

• The female reproductive system consists of ovaries, fallopian tubes (oviducts), uterus, cervix, and vagina.
• The ovaries produce eggs (ova) through oogenesis.
• The uterus is the site of embryo implantation and fetal development during pregnancy.

CBSE Class 12 Biology Mind Map: All Chapters

Menstrual Cycle:

• The menstrual cycle is a monthly cycle in females that involves the release of an egg, preparation of the uterus for implantation, and shedding of the uterine lining if fertilisation does not occur.
• It is controlled by hormones, including follicle-stimulating hormone (FSH), luteinizing hormone (LH), estrogen, and progesterone.

Gametogenesis

• The process of formation of gametes.
• In males, it is called spermatogenesis.
• In females, it is called oogenesis

Spermatogenesis

• Production of sperms (spermatozoa)

Oogenesis

Fertilisation:

• Fertilisation is the fusion of a sperm and an egg to form a zygote.
• It usually occurs in the fallopian tubes.
• The zygote undergoes mitotic divisions and forms an embryo, which implants in the uterus for further development.

CBSE Class 12 Biology Important MCQs for All Chapters

Pregnancy and Embryonic Development:

• Pregnancy begins with the implantation of the embryo in the uterine wall.
• The development of the embryo occurs in three stages: zygote, embryo, and fetus.
• The placenta forms, which provides nourishment and oxygen to the developing fetus.

Parturition and Lactation:

• Parturition is the process of giving birth.
• It is triggered by hormonal changes and involves uterine contractions.
• After birth, the mother produces milk through lactation to nourish the newborn.

Revision Notes: CBSE Class 12 Biology Sexual Reproduction in Flowering Plants 

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