Enzymes

Seite 1

Enzymes:

Q.1: What are Enzymes?

Ans: Enzymes are biological catalyst that are made up of proteins they help speed up or alter a chemical reaction. but remain chemically unchanged at the end of a reaction

Q.2: What is Activation energy?

Ans: Activation energy is needed for the enzyme to start a chemical reaction.

Q.3: What does enzyme speed up in our body?

ANS: In our body enzyme speed up the breakdown of glucose into carbondioxide and water.

Seite 2

digestive enzymes:

Q.: What are 'Digestive Enzymes'?

Ans: Digestive enzymes are enzymes speed up food breakdown in our stomach

Types:

Maltase

Protease

Lipase

Amylase

Q.: Functions of these enzymes:

Maltase: Digests maltose to glucose

Amylase: Starch to maltose

Protease: Starch to amino acids

Lipase: Fats to fatty acids and glycerol.

Q.: Types of enzymes(Main types):

Anabolic: builds complex substances

Catabolic: Breakdowns complex substance.

Q.: When are enzymes produced:

Only when needed.

Q.: How do enzymes speed up a chemical reaction?

Ans: By lowering down the activation energy.

Q.: What are Substrates?

Substrates are substances on which enzymes act on.

Q.: What are active sides in enzymes:

Sides on which the substrates fit into

Q.: What happens when a substrate binds to an enzyme?

Ans: Forms a enzyme-substrate complex.

Seite 3

Pointers:

Q.: What effects the shape and function of an enzyme:

Ans: The shape and function of an enzyme is affected by :

High temperature

Acid

Alkali

Q.: What is Optimum temperature?

Ans: Optimum temperature is when the most active.

Q.: Define the 10°C rule?

Ans: With every increasing of 10 degrees the enzyme will speed it's chemical reaction until it reaches it's optimum temperature.

Q.: What is Denaturation?

Ans: When enzyme changes it's original state .

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Daily life examples: