Biochemistry

Front

What term describes a molecule that REPELS water?

Back

Hydrophobic: A term used to describe molecules that do not interact well with water, often nonpolar substances.

Front

Which of the following is NOT a macromolecule?

Back

Water: Water is a small molecule and does not fall under the category of macromolecules like proteins, nucleic acids, and lipids.

Front

What is the active site of an enzyme?

Back

Active Site: The region on an enzyme where substrate molecules bind and undergo a chemical reaction.

Front

What group of macromolecules is made of nucleotides?

Back

Nucleic Acid: Macromolecules such as DNA and RNA that are composed of nucleotide monomers.

Front

At what temperature does the enzyme work best according to the graph?

Back

30 °C: The optimal temperature for enzyme activity as indicated by the graph.

Front

What is a macromolecule?

Back

Macromolecule: A large complex molecule, such as proteins, nucleic acids, carbohydrates, and lipids, made up of smaller units called monomers.

Front

Define hydrophilic.

Back

Hydrophilic: A term used to describe molecules that are attracted to water and can interact with it, often polar substances.

Front

What are the four main types of macromolecules?

Back

The four main types of macromolecules are carbohydrates, proteins, lipids, and nucleic acids.

Front

What is a substrate in enzymatic reactions?

Back

Substrate: The reactant molecule that an enzyme acts upon during a chemical reaction.

Front

What is the role of enzymes in biochemical reactions?

Back

Enzymes: Biological catalysts that speed up chemical reactions by lowering the activation energy required.