Unit 3 Energy Flow Concepts 1 & 2

Front

What does adenine represent in a nucleotide?

Back

Adenine is one of the four nucleobases in the nucleic acid of DNA and RNA, and it pairs with thymine in DNA and uracil in RNA.

Front

What is the molecule that an enzyme binds to called?

Back

The molecule that an enzyme binds to is known as its substrate.

Front

What must all chemical reactions do?

Back

All chemical reactions must break or form bonds.

Front

What is required for a chemical reaction to occur?

Back

The activation energy is required for a chemical reaction to occur.

Front

If food is like a check, what is ATP like?

Back

If the food you eat is like a check, ATP is like cash.

Front

What are the four main components of a nucleotide?

Back

The four main components of a nucleotide are adenine, thymine (or uracil in RNA), cytosine, and guanine.

Front

What is the role of enzymes in chemical reactions?

Back

Enzymes act as catalysts to speed up chemical reactions by lowering the activation energy.

Front

What is the difference between reactants and products in a chemical reaction?

Back

Reactants are the starting materials in a chemical reaction, while products are the substances formed as a result of the reaction.

Front

What is a polymer?

Back

A polymer is a large molecule composed of many repeated subunits, known as monomers.

Front

What is the active site of an enzyme?

Back

The active site of an enzyme is the region where substrate molecules bind and undergo a chemical reaction.