Biology Midterm Review A

Front

What molecule is used by cells as an energy source?

Back

ATP (Adenosine Triphosphate) is the primary energy carrier in cells.

Front

What type of molecule provides building blocks for tissues and helps regulate reactions in the body?

Back

Proteins are essential for building tissues, transporting molecules, and regulating biochemical reactions.

Front

What is the original source of energy in most ecosystems?

Back

The sun is the primary source of energy for most ecosystems, driving photosynthesis.

Front

What structure packages and ships substances out of a cell?

Back

The Golgi apparatus is responsible for modifying, sorting, and packaging proteins and lipids for secretion.

Front

What are reusable complex proteins that speed up chemical reactions within cells called?

Back

Enzymes are biological catalysts that accelerate chemical reactions in the body.

Front

What are the building blocks of proteins?

Back

Amino acids are the monomers that combine to form proteins.

Front

What is the process by which plants convert sunlight into chemical energy?

Back

Photosynthesis is the process by which green plants use sunlight to synthesize foods from carbon dioxide and water.

Front

What is the role of carbohydrates in living organisms?

Back

Carbohydrates provide energy and serve as structural components in cells.

Front

What is the function of lipids in biological systems?

Back

Lipids store energy, provide insulation, and make up cell membranes.

Front

What is the basic unit of life?

Back

The cell is the fundamental unit of life, capable of performing all life processes.