Living Environment Regents Review Version A

Front

What is the variable that is being measured or observed in an experiment?

Back

Dependent variable: This is the variable that is the result or effect in an experiment.

Front

What is made up of all of the populations in an area?

Back

Community: A community consists of all the different populations that live together in a specific area.

Front

Which organelle takes food and turns it into energy for plant and animal cells?

Back

Mitochondria: Known as the powerhouse of the cell, mitochondria convert food into energy.

Front

What is found in both plant and animal cells but is much larger in plant cells?

Back

Vacuole: A vacuole is a storage organelle that is larger in plant cells.

Front

What are chemicals that help chemical reactions occur at faster rates in living organisms?

Back

Catalyst: Catalysts speed up chemical reactions without being consumed in the process.

Front

What is the role of chloroplasts in plant cells?

Back

Chloroplasts: Organelles that conduct photosynthesis, converting sunlight into chemical energy.

Front

What is the function of the nucleus in a cell?

Back

Nucleus: The nucleus acts as the control center of the cell, housing DNA and regulating gene expression.

Front

What is an ecosystem?

Back

Ecosystem: A community of living organisms interacting with their physical environment.

Front

What is the difference between a habitat and a niche?

Back

Habitat: The environment where an organism lives; Niche: The role or function of an organism within its habitat.

Front

What is the function of ribosomes in a cell?

Back

Ribosomes: Organelles that synthesize proteins by translating messenger RNA.