_____ Plants and bacteria start the carbon cycle with consumption.

Verified step by step guidance

1. Identify the role of plants in the carbon cycle: Plants take in carbon dioxide (CO2) from the atmosphere during the process of photosynthesis.
2. Understand the process of photosynthesis: Plants convert CO2 and water into glucose and oxygen using sunlight. The chemical equation is: 6CO2 + 6H2O + light energy → C6H12O6 + 6O2.
3. Recognize the role of bacteria in the carbon cycle: Certain bacteria decompose organic matter, releasing carbon back into the atmosphere as CO2 through the process of respiration.
4. Explore the process of decomposition: Bacteria break down dead organic material, which releases nutrients and carbon dioxide back into the environment.
5. Connect the cycle: Both plants and bacteria are crucial in the carbon cycle, with plants capturing carbon and bacteria helping to release it back, maintaining the balance of carbon in the ecosystem.

Key Concepts

Carbon Cycle

The carbon cycle is a biogeochemical cycle that describes the movement of carbon among the atmosphere, oceans, soil, and living organisms. It involves processes such as photosynthesis, respiration, decomposition, and combustion, which collectively regulate carbon levels in the environment. Understanding this cycle is crucial for grasping how carbon is utilized and recycled in ecosystems.

Photosynthesis

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy, specifically glucose, using carbon dioxide and water. This process not only provides energy for the organisms that perform it but also releases oxygen as a byproduct, making it essential for life on Earth. It is a foundational component of the carbon cycle.

Decomposition

Decomposition is the biological process through which organic matter is broken down into simpler substances by decomposers, such as bacteria and fungi. This process recycles nutrients back into the ecosystem, allowing for the continuation of the carbon cycle. Decomposition is vital for soil health and fertility, as it returns carbon and other nutrients to the soil.