Biology Concepts and Terminology

Front

What are purines?

Back

Purines are nitrogenous bases with a double-ring structure, including Adenine (A) and Guanine (G).

Front

What is the basic unit of life?

Back

All living things are made up of cells.

Front

What do living things use energy for?

Back

Living things use energy to do work, maintain themselves, grow, and reproduce.

Front

What does pH measure?

Back

pH is a measure of acidity or basicity.

Front

What elements are found in living tissue?

Back

Elements found in living tissue are often the same as those found in nonliving matter.

Front

Define homeostasis.

Back

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

Front

What is the role of enzymes in biological reactions?

Back

Enzymes are catalysts that speed up chemical reactions in living organisms by lowering the activation energy.

Front

What is the significance of DNA?

Back

DNA contains the genetic instructions for the development, functioning, growth, and reproduction of all known living organisms.

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy, carbon dioxide, and water.

Front

What is the difference between prokaryotic and eukaryotic cells?

Back

Prokaryotic cells lack a nucleus and membrane-bound organelles, while eukaryotic cells have a nucleus and organelles.