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Life Begins — Flashcards

NIOS · Class 10 · Home Science

44 flashcards for Life Begins (NIOS Class 10 Home Science) to test yourself on key terms and facts. Sample: "What is a zygote?"

62 questions44 flashcards5 concepts

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44 Flashcards·
Pregnancy and fertilisationPrenatal developmentSigns of pregnancyPregnancy and heredity
Card 1Pregnancy and fertilisation

What is a zygote?

Answer

The fertilised ovum is called a zygote. It is formed when the sperm from the man unites with the egg from the woman during fertilisation.

Card 2Pregnancy and fertilisation

What happens to the zygote after fertilisation?

Answer

The zygote gets attached to the uterus and starts growing by drawing nutrition from the mother's body.

Card 3Prenatal development

What is the correct order of development before birth?

Answer

Fertilised ovum is called zygote. After attachment and early growth it is called embryo. When it attains human form, it is called foetus. After birth, it is called a baby.

Card 4Signs of pregnancy

Why is missed menstrual period an important sign of pregnancy?

Answer

Missed menstrual period is the first indication of pregnancy in every woman. It is one of the earliest signs that the body has started changing after fertilisation.

Card 5Signs of pregnancy

What breast changes may happen during pregnancy?

Answer

The breasts may become enlarged and tender. The nipples become more prominent, and the dark area around the nipple called areola becomes darker and enlarges.

Card 6Signs of pregnancy

Why may urination become more frequent near the end of pregnancy?

Answer

Frequency of urination may increase towards the end of pregnancy because the growing foetus and uterus put pressure on nearby organs.

Card 7Pregnancy and heredity

Who determines the sex of the baby?

Answer

The father's chromosome determines the sex of the baby.

Card 8Prenatal development

How long does pregnancy last?

Answer

Pregnancy lasts about 280 days, or nine months. This is called the prenatal period.

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Frequently Asked Questions

What are the important topics in Life Begins for NIOS Class 10 Home Science?
Key topics in Life Begins include Pregnancy and Early Development, Trimester-wise Development of the Foetus, Factors Affecting the Growing Foetus, Medical Care and Safe Motherhood. Study these first, then practise questions on each for the NIOS Class 10 board exam.
How many flashcards are available for Life Begins?
There are 44 flashcards for Life Begins covering key definitions, facts and ideas. A few sample cards are shown on this page.
How should I revise Life Begins for the NIOS Class 10 board exam?
Learn the core ideas first, then work through the 62 practice questions on Life Begins. Revise 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 NIOS Class 10 Home Science Flashcards

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