#6 Nutrient Cycling

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What is nutrient cycling?

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Nutrient cycling is the process by which nutrients are transferred between the biotic (living) and abiotic (non-living) components of an ecosystem.

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What role do decomposers play in nutrient cycling?

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Decomposers break down dead organic matter, returning nutrients to the soil and making them available for plants.

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What are the primary nutrients involved in nutrient cycling?

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The primary nutrients include carbon, nitrogen, phosphorus, and sulfur.

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How does carbon dioxide enter the atmosphere?

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Carbon dioxide enters the atmosphere through processes like cellular respiration, combustion of fossil fuels, and decomposition.

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What is photosynthesis and how does it relate to nutrient cycling?

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Photosynthesis is the process by which plants convert carbon dioxide and sunlight into glucose and oxygen, playing a crucial role in the carbon cycle.

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What is the significance of nitrogen in nutrient cycling?

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Nitrogen is essential for the production of amino acids and nucleic acids, which are vital for all living organisms.

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How do plants contribute to nutrient cycling?

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Plants absorb nutrients from the soil and, through processes like photosynthesis, convert them into organic matter.

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What is the role of fungi in nutrient cycling?

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Fungi decompose organic matter and form symbiotic relationships with plants, aiding in nutrient absorption.

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What is the difference between biotic and abiotic components in nutrient cycling?

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Biotic components are living organisms (plants, animals, decomposers), while abiotic components are non-living elements (soil, water, air) that support life.

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What is the carbon cycle?

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The carbon cycle is the series of processes by which carbon compounds are interconverted in the environment, involving carbon dioxide, photosynthesis, and respiration.