10 Questions
What is the primary excretory system organ through which urine is expelled in mammals?
urethra
What are the primary excretory organs in vertebrates?
lungs, kidneys, skin
What are some waste products produced during cellular respiration in the body?
carbon dioxide, water, salts, urea, uric acid
How do unicellular organisms discharge waste products?
directly through the surface of the cell
What are the respiratory products that green plants excrete?
carbon dioxide, water
What is the difference between excretion and secretion?
Excretion is the elimination of metabolic waste from an organism, while secretion involves the release of substances that may have specific tasks after leaving the cell.
Why is excretion considered an essential process in all forms of life?
Excretion is essential because the accumulation of metabolic waste beyond a certain level inside the body is harmful.
What are some waste products produced during cellular respiration in the body?
Some waste products of cellular respiration include carbon dioxide, water, salts, urea, and uric acid.
How do green plants excrete carbon dioxide and water as respiratory products?
Green plants excrete carbon dioxide and water as respiratory products through processes like transpiration and guttation.
How do unicellular organisms discharge waste products?
Unicellular organisms discharge waste products directly through the surface of the cell.
Test your knowledge on the process of excretion, which involves eliminating metabolic waste from organisms. Learn about excretory organs in vertebrates, such as the lungs, kidneys, and skin, and understand the importance of excretion in maintaining life.
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