2023 Fall Final Review (under construction)

Front

What is a substrate in a biochemical reaction?

Back

A substrate is a molecule upon which an enzyme acts. It is the reactant that is transformed during the reaction.

Front

What characteristic of life is demonstrated when living things use energy?

Back

This characteristic refers to the ability of living organisms to obtain and utilize energy to grow, reproduce, and maintain their biological processes.

Front

What is a monomer?

Back

A monomer is a small, basic molecular unit that can join together with other monomers to form a polymer.

Front

What is a polymer?

Back

A polymer is a large molecule composed of many repeated subunits (monomers), such as proteins, nucleic acids, and carbohydrates.

Front

What is nucleic acid?

Back

Nucleic acids are biopolymers essential for all known forms of life, primarily DNA and RNA, which store and transmit genetic information.

Front

What is the function of the cell membrane?

Back

The cell membrane is a selectively permeable barrier that controls what enters and leaves the cell, maintaining homeostasis.

Front

What is the role of enzymes in biochemical reactions?

Back

Enzymes are biological catalysts that speed up chemical reactions by lowering the activation energy required for the reaction to occur.

Front

What is the difference between a prokaryotic and eukaryotic cell?

Back

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

Front

What is homeostasis?

Back

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

Front

What is the significance of the cell wall in plant cells?

Back

The cell wall provides structural support and protection to plant cells, helping to maintain their shape.