VCS Biology _ Unit 1_ Macromolecules & Enzymes

Front

What are macromolecules?

Back

Large, complex molecules essential for life, including carbohydrates, proteins, lipids, and nucleic acids.

Front

What is the role of enzymes in biological reactions?

Back

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

Front

What is activation energy?

Back

The minimum energy required for a chemical reaction to occur.

Front

At what pH level is the enzyme pepsin most active?

Back

Pepsin is most active at a pH of around 1.5 to 2.

Front

What is the primary function of carbohydrates?

Back

To provide quick energy for the body.

Front

What are lipids primarily used for?

Back

Lipids are used for long-term energy storage and insulation.

Front

What is the difference between saturated and unsaturated fats?

Back

Saturated fats have no double bonds between carbon atoms, while unsaturated fats have one or more double bonds.

Front

What element is found in all organic compounds?

Back

Carbon.

Front

What is the function of enzymes in digestion?

Back

Enzymes break down food into smaller molecules that can be absorbed by the body.

Front

What is a substrate in enzymatic reactions?

Back

The substance on which an enzyme acts.