Concepts 3-5 Review

Front

What is photosynthesis?

Back

Photosynthesis is a process used by plants, algae, and some bacteria to convert light energy, usually from the sun, into chemical energy in the form of glucose. It involves the absorption of carbon dioxide and water, and the release of oxygen.

Front

What are the main reactants of photosynthesis?

Back

The main reactants of photosynthesis are sunlight, carbon dioxide, and water.

Front

What type of reaction is photosynthesis?

Back

Photosynthesis is an endothermic reaction, meaning it absorbs energy.

Front

What is a producer in an ecosystem?

Back

A producer is an organism that can make its own food through photosynthesis or chemosynthesis, such as plants and algae.

Front

What role do decomposers play in an ecosystem?

Back

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

Front

What is a food web?

Back

A food web is a complex network of feeding relationships among organisms in an ecosystem, showing how energy and nutrients flow through different trophic levels.

Front

What is a trophic level?

Back

A trophic level is a position in a food chain or food web, representing the flow of energy and nutrients from producers to various levels of consumers.

Front

How much energy is transferred from producers to primary consumers?

Back

Typically, about 10% of the energy from producers is transferred to primary consumers.

Front

If there are 1,000 joules of energy in producers, how much energy is available to primary consumers?

Back

100 joules of energy is available to primary consumers.

Front

If primary consumers have 100 joules of energy, how much energy do secondary consumers receive?

Back

10 joules of energy is available to secondary consumers.