Catalysts and Their Functions in Chemistry

What are the three main types of catalysts discussed in the video?

• Acid-base, surface, and enzymes

• Acid-base, metal, and organic

• Surface, metal, and biological

• Enzymes, metal, and acid-base

How does an acid-base catalyst typically function?

• By altering the pH

• By changing pressure

• By adding or removing a proton

• By increasing temperature

What is the role of sulfuric acid in the example of acid-base catalysis?

• It increases pressure

• It acts as a solvent

• It donates a proton

• It absorbs heat

What is a key characteristic of surface catalysts?

• They are always liquid

• They are made of metal

• They are organic compounds

• They are gaseous

What process is used as an example of surface catalysis?

• Fermentation

• Photosynthesis

• The Haber process

• Electrolysis

What is the main difference between adsorption and absorption in surface catalysis?

• Adsorption requires a catalyst, absorption does not

• Adsorption is faster than absorption

• Adsorption occurs on the surface, absorption within

• Adsorption involves chemical reactions

What is the main function of enzyme catalysts in biological systems?

• To increase pressure

• To change pH

• To lower activation energy

• To increase temperature

Which enzyme is responsible for breaking down sucrose?

• Protease

• Amylase

• Lactase

• Sucrase

What happens when an enzyme wraps around a substrate?

• It changes the substrate's color

• It tugs on the substrate to lower activation energy

• It increases the substrate's temperature

• It dissolves the substrate

What is the primary role of catalysts in chemical reactions?

• To increase the reactant concentration

• To change the color of reactants

• To speed up the reaction

• To increase the energy output