Biology Final Review

Front

What is a primary consumer?

Back

A primary consumer is an organism that eats primary producers (plants) in an ecosystem. Examples include herbivores like deer and mice.

Front

What is the relationship between ATP and ADP in terms of energy?

Back

ATP (adenosine triphosphate) has more energy than ADP (adenosine diphosphate). ATP is used as the energy currency of the cell.

Front

What are abiotic factors in an ecosystem?

Back

Abiotic factors are non-living elements that affect the environment, such as water, temperature, and rocks.

Front

What is the primary direction of energy transfer in a food chain?

Back

Energy is transferred from primary producers (plants) to primary consumers (herbivores) in one direction only.

Front

What type of reaction occurs when ATP is formed from ADP?

Back

The reaction is endothermic, meaning it requires energy to attach a phosphate group to ADP to form ATP.

Front

Define a food chain.

Back

A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another.

Front

What is the role of decomposers in an ecosystem?

Back

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

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants use sunlight to convert carbon dioxide and water into glucose and oxygen.

Front

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

Back

A food chain is a simple linear path of energy flow, while a food web is a complex network of interconnected food chains.

Front

What is an ecosystem?

Back

An ecosystem is a community of living organisms interacting with their physical environment.