Podcast
Questions and Answers
The central cavity of a sponge is called the ______.
The central cavity of a sponge is called the ______.
spongocoel
Which of the following cell types is responsible for filtering food from water in sponges?
Which of the following cell types is responsible for filtering food from water in sponges?
Match the following terms with their correct definitions:
Match the following terms with their correct definitions:
Osculum = A large opening at the top of a sponge Ostia = Small openings in the sponge's body wall Mesohyl = Gelatinous matrix within a sponge Pinacocytes = Flattened cells covering the outer surface of a sponge Amoebocyte = Mobile cells responsible for various functions within a sponge Choanocyte = Collar cells with flagella that create water currents and capture food particles
Nematocysts are stinging cells found in both Porifera and Cnidaria.
Nematocysts are stinging cells found in both Porifera and Cnidaria.
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What is the main difference between a polyp and a medusa?
What is the main difference between a polyp and a medusa?
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Flashcards
Osculum
Osculum
The large opening at the top of a sponge.
Ostia
Ostia
Small openings on a sponge's surface for water intake.
Cnidocytes
Cnidocytes
Specialized cells in Cnidaria that contain stinging structures.
Medusa
Medusa
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Nematocysts
Nematocysts
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Study Notes
Porifera Terminology
- Osculum: A large opening in a sponge that expels water.
- Ostia: Tiny pores in a sponge's body that allow water to enter.
- Spongocoel: The central cavity inside a sponge.
- Mesohyl: A gelatinous matrix that supports the cells of a sponge.
- Pinacocytes: Flattened cells that form the outer layer of a sponge.
- Amoebocytes: Mobile cells that carry out various functions in a sponge.
- Choanocytes: Flagellated cells that create a water current and capture food particles.
Cnidaria Terminology
- Cnidocytes: Specialized stinging cells on a cnidarian.
- Nematocysts: The stinging organelles (harpoon-like capsules) within cnidocytes.
- Polyp: The sessile (attached) form of a cnidarian.
- Medusa: The free-floating, jellyfish-like form of a cnidarian.
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Description
This quiz covers the essential terminology related to Porifera and Cnidaria. Test your knowledge on key terms such as osculum, ostia, cnidocytes, and more. Perfect for biology students exploring these fascinating animal phyla.
