Biology Midterm Review

Front

What is passive transport?

Back

The movement of particles across a membrane without the use of energy.

Front

What is active transport?

Back

The movement of particles across a membrane using energy, typically against a concentration gradient.

Front

What are the characteristics of all living things?

Back

All living things respond to their environment, grow and develop, reproduce, and maintain homeostasis.

Front

What is photosynthesis?

Back

The process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Front

What is a lipid?

Back

A macromolecule that provides long-term energy storage and is insoluble in water.

Front

What is a carbohydrate?

Back

A macromolecule that serves as a primary energy source and includes sugars and starches.

Front

What is a protein?

Back

A macromolecule made up of amino acids that performs a variety of functions in the body, including catalyzing reactions as enzymes.

Front

What is a nucleic acid?

Back

A macromolecule that stores and transmits genetic information, such as DNA and RNA.

Front

What element is present in all organic compounds?

Back

Carbon.

Front

What is an enzyme?

Back

A protein that acts as a catalyst to speed up chemical reactions in biological processes.