Tutorial
iGCSE Biology: Understand Excretion in Humans
Learn about human excretion for iGCSE Biology. This deck covers the urinary system, kidney function including filtration and reabsorption, and how the liver forms urea through deamination.
Tutorial
iGCSE Biology: Understand Excretion in Humans
Learn about human excretion for iGCSE Biology. This deck covers the urinary system, kidney function including filtration and reabsorption, and how the liver forms urea through deamination.
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Deck Contents
35 CardsLesson#1
In this deck, we'll explore excretion in humans. Excretion is the process of removing waste products from the body. For your exam, you need to know it removes three main types of substances: toxic materials, waste products from metabolism, and any substances present in excess of the body's needs.
Quiz#2
What is the biological process for removing metabolic waste and toxic materials from the body?
excretion
Quiz#3
Excretion removes toxic materials and waste products of metabolism. What is the third category of substance it removes?
substances in excess
Lesson#4
Several organs are involved in excretion. The lungs, for example, are excretory organs because they remove carbon dioxide, a waste product of aerobic respiration, from the body when you breathe out.
Quiz#5
What waste product of metabolism is excreted by the lungs?
carbon dioxide
Lesson#6
The main organs of excretion, however, are the kidneys. They filter your blood to remove a toxic waste product called urea, as well as any excess water and mineral ions.
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