Enzymes

Enzymes are made up of which organic molecule?

• Carbohydrates

• Lipids

• Proteins

• Nucleic acids

Enzymes are biological catalysts. What does this mean?

• Biological because we get them from food. Catalysts because they speed up chemical reactions.

• Biological because they are made within living cells. Catalysts because they speed up chemical reactions.

• Biological because we get them from animals and plants. Catalysts because they speed up chemical reactions.

• Biological because they are made within our body. Catalysts because they slow down chemical reactions.

Anabolic reactions ___________.

• Break down large molecules to smaller ones.

• Build up small molecules to larger ones.

• Both.

• Neither.

Catabolic reactions ________ large molecules to smaller ones.

• Make

• Build up

• Break down

• Combine

Enzymes speed up chemical reactions without being changed or used up in the reaction.

• TRUE

• FALSE

An enzyme's shape is not complementary to the shape of its substrate.

• TRUE

• FALSE

The ______ is the region, or place in an enzyme where the substrate will bind to.

• Inactive site

• Substrate site

• Active site

• Binding site

When the substrate has successfully binded with the enzyme, it forms a ________.

• Enzyme- Substrate mechanism

• Enzyme- Substrate bond

• Enzyme- Substrate pair

• Enzyme- Substrate complex

When a substrate has been successfully broken down, it is released from the enzyme as _______.

These enzymes are synthesized, or made in the cell and used within the cell itself.

• Extracellular enzymes

• Intracellular enzymes

• Intercellular enzymes

• Intramolecular enzymes