Energy Flow and Matter Cycling

Front

What process is responsible for the release of oxygen into the atmosphere?

Back

Photosynthesis is the process by which plants, algae, and some bacteria convert light energy into chemical energy, releasing oxygen as a byproduct.

Front

How does energy flow through an ecosystem?

Back

Energy flows through an ecosystem in a linear, one-way direction, starting from producers to consumers and eventually to decomposers.

Front

What organisms are typically at the base of a food web?

Back

Producers, such as plants and phytoplankton, are at the base of a food web and provide energy for other organisms.

Front

What is a model that illustrates the flow of energy through an ecosystem?

Back

A food chain is a model that shows the linear flow of energy from one organism to another in an ecosystem.

Front

What is the role of producers in the carbon cycle?

Back

Producers fix carbon dioxide into organic molecules through photosynthesis, playing a crucial role in the carbon cycle.

Front

Define photosynthesis.

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Front

What are decomposers?

Back

Decomposers are organisms, such as bacteria and fungi, that break down dead organic matter, returning nutrients to the soil.

Front

What is a food web?

Back

A food web is a complex network of interconnected food chains that illustrates how energy and nutrients flow through an ecosystem.

Front

What is the difference between a food chain and a food web?

Back

A food chain shows a single pathway of energy flow, while a food web shows multiple pathways and interactions among organisms.

Front

What is the significance of herbivores in an ecosystem?

Back

Herbivores are primary consumers that feed on producers, transferring energy from plants to higher trophic levels.