Semester 1 Review (Bio)

Front

What is a biotic factor?

Back

Any living part of the environment with which an organism might interact.

Front

What is carrying capacity?

Back

The maximum number of individuals of a particular species that a particular environment can support.

Front

What is an independent variable?

Back

The variable that is changed by the scientist at the beginning of the experiment.

Front

What role do enzymes play in chemical reactions?

Back

Enzymes decrease the activation energy necessary to initiate the chemical change within the body.

Front

What is the function of the cell membrane?

Back

A rigid structure that surrounds the cell membrane and provides support to the cell.

Front

Define abiotic factor.

Back

Any non-living part of the environment that can influence living organisms.

Front

What is population density?

Back

The number of individuals of a particular species per unit area.

Front

What is exponential growth?

Back

A growth pattern where the population size increases rapidly in proportion to the current size.

Front

What is logistic growth?

Back

A growth pattern that starts exponentially but slows as the population reaches carrying capacity.

Front

What is a control variable?

Back

A variable that is kept constant during an experiment to ensure that the results are valid.