Which term would describe the diet of the following organism? A protist that eats bacteria in freshwater puddles for carbon and energy Chemoheterotroph Photoautotroph Photoheterotroph Chemoautotroph

Human Anatomy & Physiology (11th Edition)
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### Understanding Protist Diets

**Question:**
*Which term would describe the diet of the following organism?*

**Scenario:**
*A protist that eats bacteria in freshwater puddles for carbon and energy*

**Answer Options:**
1. Chemoheterotroph
2. Photoautotroph (Selected Answer)
3. Photoheterotroph
4. Chemoautotroph

**Explanation:**

- **Chemoheterotroph**: This type of organism obtains its energy and carbon from organic compounds. It does not rely on light or inorganic substances.

- **Photoautotroph**: This organism uses light as its energy source and carbon dioxide as its carbon source. The selected answer is incorrect as a photoautotroph does not consume bacteria.

- **Photoheterotroph**: These organisms use light for energy but obtain their carbon from organic compounds rather than carbon dioxide.

- **Chemoautotroph**: This organism derives its energy from the oxidation of inorganic molecules but uses carbon dioxide as its carbon source.

Given that the protist in question eats bacteria (organic matter) for both energy and carbon, the correct answer is "Chemoheterotroph."

### Diagram Explanation:
No diagrams or graphs were provided in the image.
Transcribed Image Text:### Understanding Protist Diets **Question:** *Which term would describe the diet of the following organism?* **Scenario:** *A protist that eats bacteria in freshwater puddles for carbon and energy* **Answer Options:** 1. Chemoheterotroph 2. Photoautotroph (Selected Answer) 3. Photoheterotroph 4. Chemoautotroph **Explanation:** - **Chemoheterotroph**: This type of organism obtains its energy and carbon from organic compounds. It does not rely on light or inorganic substances. - **Photoautotroph**: This organism uses light as its energy source and carbon dioxide as its carbon source. The selected answer is incorrect as a photoautotroph does not consume bacteria. - **Photoheterotroph**: These organisms use light for energy but obtain their carbon from organic compounds rather than carbon dioxide. - **Chemoautotroph**: This organism derives its energy from the oxidation of inorganic molecules but uses carbon dioxide as its carbon source. Given that the protist in question eats bacteria (organic matter) for both energy and carbon, the correct answer is "Chemoheterotroph." ### Diagram Explanation: No diagrams or graphs were provided in the image.
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