Nutrients, Energy, and Biochemical Processes

What are enzymes?

• Enzymes are proteins that help transport oxygen in the blood.

• Enzymes are carbohydrates that provide energy to cells.

• Enzymes are biological molecules that act as catalysts and help speed up chemical reactions in living organisms.

• Enzymes are minerals that support bone health.

What is the role of enzymes in biochemical reactions?

• Enzymes are the products of biochemical reactions.

• Enzymes inhibit biochemical reactions.

• Enzymes act as catalysts in biochemical reactions.

• Enzymes have no role in biochemical reactions.

How do enzymes speed up chemical reactions?

• By lowering the activation energy

• By changing the pH of the solution

• By inhibiting the reaction

• By increasing the activation energy

What is activation energy?

• The minimum amount of energy required for a chemical reaction to occur.

• The amount of energy released during a chemical reaction.

• The average amount of energy required for a chemical reaction to occur.

• The maximum amount of energy required for a chemical reaction to occur.

What are the factors that can affect enzyme activity?

• temperature, pH, substrate concentration, enzyme concentration, inhibitors or activators

• time, pressure, light intensity

• volume, concentration, solubility

• size, shape, color

What is the lock and key model of enzyme-substrate interaction?

• The lock and key model of enzyme-substrate interaction is a concept in biochemistry that describes how enzymes and substrates interact.

• The lock and key model of enzyme-substrate interaction is a concept in economics that describes how supply and demand interact.

• The lock and key model of enzyme-substrate interaction is a concept in psychology that describes how thoughts and behaviors interact.

• The lock and key model of enzyme-substrate interaction is a concept in physics that describes how atoms interact.

What is the induced fit model of enzyme-substrate interaction?

• The induced fit model of enzyme-substrate interaction is a model that describes how enzymes and substrates undergo conformational changes upon binding to each other.

• The induced fit model of enzyme-substrate interaction is a model that describes how enzymes and substrates only undergo conformational changes after binding to each other.

• The induced fit model of enzyme-substrate interaction is a model that describes how enzymes and substrates bind together without any changes in their structure.

• The induced fit model of enzyme-substrate interaction is a model that describes how enzymes and substrates do not undergo any conformational changes upon binding to each other.

What is the difference between competitive and non-competitive inhibitors?

• Competitive inhibitors compete with the substrate for the active site, while non-competitive inhibitors bind to a different site on the enzyme.

• Competitive inhibitors have a higher affinity for the enzyme than the substrate, while non-competitive inhibitors have a lower affinity for the enzyme than the substrate.

• Competitive inhibitors increase the enzyme activity, while non-competitive inhibitors decrease the enzyme activity.

• Competitive inhibitors bind to a different site on the enzyme, while non-competitive inhibitors compete with the substrate for the active site.

What is the significance of enzymes in digestion?

• Enzymes regulate the pH levels in the stomach.

• Enzymes break down complex molecules into simpler forms for absorption.

• Enzymes help in the production of saliva.

• Enzymes aid in the transportation of nutrients.

How do enzymes play a role in metabolism?

• Enzymes act as catalysts in metabolic reactions.

• Enzymes inhibit metabolic reactions.

• Enzymes have no role in metabolism.

• Enzymes are byproducts of metabolic reactions.