Biology 1 SOL Review (Part 1)

Front

What is the dependent variable in an experiment?

Back

The dependent variable is the factor that is measured or observed in an experiment, which changes in response to the independent variable. For example, in a plant growth experiment, the height of the plant is the dependent variable.

Front

Which of the following is NOT a requirement to be considered living?

Back

Eating food in order to survive is NOT a requirement to be considered living. Organisms can obtain energy through various means, such as photosynthesis.

Front

What are the main components of the Cell Theory?

Back

The Cell Theory states that: 1) Cells are the basic unit of life, 2) All living things are made of cells, and 3) Cells come from pre-existing cells. Note: Not all cells have a nucleus.

Front

Why are scientific journal articles considered reliable sources of information?

Back

Scientific journal articles are peer-reviewed, meaning they have been evaluated by other experts in the field for accuracy and validity before publication.

Front

What is an independent variable in an experiment?

Back

The independent variable is the factor that is manipulated or changed by the researcher to observe its effect on the dependent variable.

Front

Define homeostasis.

Back

Homeostasis is the process by which living organisms maintain a stable internal environment despite changes in external conditions.

Front

What is the role of enzymes in biological reactions?

Back

Enzymes are biological catalysts that speed up chemical reactions in cells by lowering the activation energy required for the reaction to occur.

Front

What is the function of the cell membrane?

Back

The cell membrane controls the movement of substances in and out of the cell, providing protection and structural support.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants, algae, and some bacteria convert light energy into chemical energy in the form of glucose, using carbon dioxide and water.

Front

What is the difference between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells are simple, unicellular organisms without a nucleus (e.g., bacteria), while eukaryotic cells are more complex, can be unicellular or multicellular, and have a nucleus (e.g., plants, animals).