Biology Semester Exam Review

Front

What is the main function of the sodium-potassium pump?

Back

To regulate ion balance across the membrane.

Front

What is the main purpose of the cell membrane?

Back

To control the movement of substances in and out.

Front

How do enzymes function in metabolic pathways?

Back

They speed up reactions by lowering activation energy.

Front

How has cell theory influenced modern biology?

Back

By establishing the basis for understanding disease pathology.

Front

Which scientist first coined the term 'cell' after observing cork under a microscope?

Back

Robert Hooke.

Front

What is the basic unit of life?

Back

The cell.

Front

What are the two main types of cells?

Back

Prokaryotic and eukaryotic.

Front

What is homeostasis?

Back

The maintenance of a stable internal environment in an organism.

Front

What is the role of ribosomes in a cell?

Back

They are responsible for protein synthesis.

Front

What is the function of mitochondria?

Back

They produce energy (ATP) through cellular respiration.