Proteins

Key area 4

What are the 6 types of protein function?

Structural Proteins

Haemoglobin

Hormones

Antibodies

Receptors

Enzymes

What are enzymes made up of?

All living Cell

Enzymes are describes as?

Being biological catalysts

What are some of the properties of enzymes?

^.It speeds up chemical reactions within a cell

^. Remains unchanged after the reaction

^.Lower the energy required for a reaction

What is the definition of an enzymes?

Enzymes speeds up chemical reactions and remains unchanged at the end of the reactions 

One enzyme only joins to what?

One type of substrate

Why does enzymes only join to one type of substrate

The enzymes and substrate are complementary to one another

What is Degradation?

Where ONE larger substrate is Brocken down into MANY smaller products

What is Synthesis?

Where MANY smaller substrates are synthesised/made up into ONE larger product

Examples of Degradtion?

Examples is synthesis?

What is optimum condition?

There are conditions at which enzymes activity is at its most active

What are the 2 factors which affects enzymes?

Temperature and pH

If enzymes is high the rate of reaction will also be?

High

What is denatured mean?

It means that the ACTIVE site has CHANGED SHAPE due to HIGH temperatures or extremes of pH

What happens when the optimum is below enzymes activity?

Begins to decrease

What happens when the optimum is above enzymes activity?

Begins to decrease

What happens when enzymes are at a very high temperature?

The enzymes becomes denatured and can no longer bind to its substrate

Cellulase is an enzyme that speeds up the breakdown of a component of the plant cell wall

Name the component?

Cellulose

Name the substrate of which enzymes are made

Protein