June 24, 2024

Excretory Products and their Elimination

Excretory Products and their Elimination | NCERT | BIOLOGY CHAPTER 16

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Animals accumulate ammonia, urea, uric acid, carbon dioxide, water and ions like Na+, K+, Cl–, phosphate, sulphate, etc., either by metabolic activities or by other means like excess ingestion. These substances have to be removed totally or partially. In this chapter, you will learn the mechanisms of elimination of these substances with special emphasis on […]

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BODY FLUIDS AND CIRCULATION

BODY FLUIDS AND CIRCULATION | NCERT | BIOLOGY CHAPTER 15

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You have learnt that all living cells have to be provided with nutrients, O2 and other essential substances. Also, the waste or harmful substances produced, have to be removed continuously for healthy functioning of tissues. It is therefore, essential to have efficient mechanisms for the movement of these substances to the cells and from the

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