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Revision Notes

Life Begins

NIOS · Class 10 · Home Science

Quick revision notes for Life Begins — NIOS Class 10 Home Science. Key concepts, formulas, and definitions for last-minute revision.

62 questions44 flashcards5 concepts

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Key Topics to Revise

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1. Pregnancy and Early Development

  • Fertilisation happens when sperm from the man unites with the egg or ovum from the woman.
  • The fertilised ovum is called a zygote.
  • The zygote attaches to the uterus and begins to grow by drawing nutrition from the mother's body.
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2. Trimester-wise Development of the Foetus

  • First trimester is 0 to 3 months.
  • In the first trimester, the fertilised egg divides repeatedly and attaches to the uterus.
  • The embryo’s life support systems include the amniotic sac, placenta, and umbilical cord.
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3. Factors Affecting the Growing Foetus

  • The mother’s emotional state affects the foetus.
  • Tension, stress, anxiety, distress, fear, and grief can make the baby irritable after birth.
  • A happy and calm mother helps the baby develop better.
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4. Medical Care and Safe Motherhood

  • After the first missed period, pregnancy can be checked by a urine test by a doctor.
  • Pregnant women should register at the nearest health centre or doctor as soon as possible.
  • In villages, help from an ASHA or Anganwadi Worker can be taken to reach the nearest health centre.

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Full Notes

Key Concepts

Fertilisation is the union of spermAfter attachment to the uterine wallThe first indication of pregnancyPregnancy lasts about 280 daysThe fertilised egg divides

Frequently Asked Questions

What are the important topics in Life Begins for NIOS Class 10 Home Science?
Life Begins covers several key topics that are frequently asked in NIOS Class 10 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Life Begins — NIOS Class 10 Home Science?
Understand the core concepts first, then work through the 62 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All 22 chapters — NIOS Class 10 Home Science Revision Notes

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