Questions and Answers
How does the function of the contractile vacuole help the protist stay alive?
The function of the contractile vacuole is to pump water out of the cell to maintain homeostasis.
What same function (of the contractile vacuole) is carried out in animals?
The kidneys of the excretory system carry out the same function.
What same function (of the contractile vacuole) is carried out in plants?
The stomata of plant leaves carry out a similar function.
How is the structure of arteries specialized for their particular function?
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How is the structure of veins specialized for their particular function?
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How is the function of capillaries made possible by their structure?
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Study Notes
Contractile Vacuole Function
- Contractile vacuoles pump water out of protist cells, maintaining homeostasis (water balance).
- Essential for the survival of protists, preventing cell death from excess water.
Similar Function in Animals
- In animals, kidneys perform a similar role to contractile vacuoles by regulating water balance and excretion.
- Kidneys are part of the excretory system, crucial for maintaining homeostasis.
Similar Function in Plants
- Stomata in plant leaves help regulate water loss by closing on hot days to prevent excessive water vapor escape.
- This function supports homeostasis in plant cells.
Artery Structure and Function
- Arteries feature an elastic membrane that allows them to endure high pressure from blood ejected from the heart.
- This elasticity enables arteries to maintain blood flow and pressure during circulation.
Vein Structure and Function
- Veins possess valves that prevent the backflow of blood, ensuring unidirectional movement toward the heart.
- These valves are crucial for efficient blood return and overall circulation.
Capillary Structure and Function
- Capillaries are microscopic vessels designed for the exchange of dissolved gases between blood and body cells.
- Their thin walls facilitate efficient diffusion of oxygen and carbon dioxide.
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Description
This quiz focuses on the role of the contractile vacuole in protists and its comparison to similar functions in the excretory system of animals. Test your understanding of these essential biological processes and how they contribute to homeostasis. Perfect for biology enthusiasts and students alike.
