Unit 1: Introduction to Biology Test Review

Front

What is the basic unit of life?

Back

All living things have cells.

Front

What pH value indicates a basic solution?

Back

A pH value of 11 indicates the most basic solution.

Front

What are the positive particles of an atom called?

Back

Protons.

Front

What taste is associated with acids?

Back

Sour.

Front

What factor can denature an enzyme?

Back

Excessive heat.

Front

What is the pH range of acids?

Back

pH less than 7.

Front

What is the pH range of bases?

Back

pH greater than 7.

Front

What is the role of enzymes in biological reactions?

Back

Enzymes act as catalysts to speed up chemical reactions.

Front

What is homeostasis?

Back

The ability of an organism to maintain a stable internal environment.

Front

What are the four macromolecules essential for life?

Back

Carbohydrates, lipids, proteins, and nucleic acids.