How is the process of obtaining oxygen different between producers and consumers in an ecosystem?

• A. Producers release oxygen as a byproduct of photosynthesis, while consumers obtain oxygen through respiration.
• B. Producers and consumers both obtain oxygen through photosynthesis.
• C. Producers absorb oxygen from the atmosphere, while consumers produce oxygen during respiration.
• D. Producers obtain oxygen from water, while consumers obtain it from soil.

Answer: (A)

Verified step by step guidance

1. Understand the role of producers in an ecosystem: Producers, such as plants, algae, and some bacteria, perform photosynthesis. During this process, they convert carbon dioxide and water into glucose and oxygen using sunlight. Oxygen is released as a byproduct of photosynthesis.
2. Recognize the role of consumers in an ecosystem: Consumers, including animals and humans, obtain oxygen through the process of respiration. They inhale oxygen from the atmosphere and use it to break down glucose in their cells, releasing energy, carbon dioxide, and water.
3. Differentiate between photosynthesis and respiration: Photosynthesis is a process used by producers to create energy-rich molecules and oxygen, while respiration is used by consumers to extract energy from these molecules using oxygen.
4. Clarify the misconception: Producers do not absorb oxygen from the atmosphere; they release it during photosynthesis. Consumers do not produce oxygen; they consume it during respiration.
5. Summarize the correct understanding: Producers release oxygen as a byproduct of photosynthesis, contributing to the oxygen available in the ecosystem, while consumers obtain oxygen from the environment to perform respiration.