Podcast
Questions and Answers
Explain how polyps catch and digest their prey.
Explain how polyps catch and digest their prey.
Polyps catch prey with their tentacles and pass them through the mouth into the gastrovascular cavity for digestion. Gland cells discharge enzymes in the gastrovascular cavity for extracellular digestion, while intracellular digestion occurs in the gastrodermis.
What is the role of the tentacles in Hydra's feeding process?
What is the role of the tentacles in Hydra's feeding process?
In Hydra, the tentacles are hollow and communicate with the gastrovascular cavity. They are used to catch prey and transfer it to the gastrovascular cavity for digestion.
Where does intracellular digestion occur in the polyps?
Where does intracellular digestion occur in the polyps?
In polyps, intracellular digestion occurs in the gastrodermis, while extracellular digestion begins in the gastrovascular cavity with the discharge of enzymes by gland cells.
What is the role of tentacles in the feeding process of polyps?
What is the role of tentacles in the feeding process of polyps?
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Where does extracellular digestion occur in polyps?
Where does extracellular digestion occur in polyps?
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Where does intracellular digestion occur in polyps?
Where does intracellular digestion occur in polyps?
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Polyps are typically ______, catching prey with their tentacles
Polyps are typically ______, catching prey with their tentacles
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Inside the gastrovascular cavity, gland cells discharge enzymes on the food to begin ______ digestion
Inside the gastrovascular cavity, gland cells discharge enzymes on the food to begin ______ digestion
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Hydra, the tentacles are hollow and the tentacle cavity communicates with the ______ cavity
Hydra, the tentacles are hollow and the tentacle cavity communicates with the ______ cavity
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Polyps are typically ______, catching prey with their tentacles
Polyps are typically ______, catching prey with their tentacles
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The tentacle cavity communicates with the ______ cavity
The tentacle cavity communicates with the ______ cavity
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Inside the gastrovascular cavity, gland cells discharge enzymes on the food to begin ______ digestion
Inside the gastrovascular cavity, gland cells discharge enzymes on the food to begin ______ digestion
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Study Notes
Polyp's Feeding Process
- Polyps are typically carnivorous, catching prey with their tentacles
- The role of the tentacles is to catch prey and bring it to the mouth of the polyp
Digestion Process
- Extracellular digestion occurs in the gastrovascular cavity
- Inside the gastrovascular cavity, gland cells discharge enzymes on the food to begin extracellular digestion
- Intracellular digestion occurs in the gastrodermal cells that line the gastrovascular cavity
Structure and Function of Tentacles
- In Hydra, the tentacles are hollow and the tentacle cavity communicates with the gastrovascular cavity
- The tentacle cavity communicates with the gastrovascular cavity
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Description
Test your knowledge on the feeding and digestion process of Hydra polyps, including their carnivorous habits, tentacles structure, and extracellular and intracellular digestion.
