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Harmful metabolic wastes from our body are removed by the biological process called:
defecation
transportation
secretion
excretion
excretion
Excretion is the biological process by which an organism removes harmful metabolic wastes (such as urea, uric acid, and carbon dioxide) produced during cellular activities from its body.
Excretion is the biological process by which an organism removes harmful metabolic wastes (such as urea, uric acid, and carbon dioxide) produced during cellular activities from its body.
Just like a household garbage collection system or a factory exhaust filter that regularly clears out waste products to keep the environment clean and safe, our excretory system removes cellular waste to prevent toxicity.
Excretion is about 'E-X-ing' the toxins out!
CO2тАЛ+H2тАЛO тАФ Carbon dioxide and water (respiratory/metabolic waste)
CO(NH2тАЛ)2тАЛ тАФ Urea (major nitrogenous waste in humans)
Metabolic processes within living cells produce various waste by-products, many of which are toxic if allowed to accumulate. Specialized excretory organs (such as kidneys in humans, Malpighian tubules in insects, or nephridia in earthworms) filter these toxic nitrogenous wastes and excess salts from the body fluids and eliminate them.
Excretion removes harmful metabolic nitrogenous wastes from the body.
In humans, the primary excretory organs are the kidneys, which form urine.
Defecation is the removal of undigested food waste, not metabolic waste.
Secretion involves the release of useful substances like hormones and enzymes.
Prevents internal toxicity and maintains cellular homeostasis.
Regulates water and electrolyte balance in body fluids.
Kidney dialysis in patients with renal failure.
Medical diagnostic tests involving urine and blood urea analysis.
Defecation (Option A): Removal of unabsorbed, undigested solid food waste from the alimentary canal through the anus.
Transportation (Option B): Movement of oxygen, nutrients, and wastes through the circulatory system.
Secretion (Option C): Release of useful chemical substances produced by glands for physiological functions.
D is correct тАФ Harmful metabolic wastes from our body are removed by the biological process called excretion.
Always distinguish between 'excretion' (removal of metabolic waste produced inside cells) and 'defecation' (elimination of undigested food residue from the digestive tract).
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