Enzymes Flashcards

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1
Q

What is metabolism

A

Metabolism is the sum of all chemical reactions within an organism

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2
Q

What are catalysts

A

Catalysts are substances that speed up a chemical reaction without being used up in the reaction

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3
Q

What are enzymes

A

Enzymes are a catalyst made by a living organism

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4
Q

What are Enzymes made up of

A

Protein and have long chains of Amino Acids

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4
Q

Chemicals in Enzymes

A

Carbon (C), Nitrogen (N), Phosphorus (P), Hydrogen (H), Oxygen (O), Sulfur (S)

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5
Q

What are Enzymes used for?

A

Enzymes are used for speeding up chemical reactions in our bodies such as digestion

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6
Q

Why is the shape of an Enzyme important

A

Enzymes are made up of specific 3D shapes to perfectly let the Substrate fit in to speed up the reaction.

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7
Q

What is a Substrate

A

Substance which the Enzyme reacts to

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7
Q

What is a Product

A

Substance the Enzyme helped form from the Substrate

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8
Q

What are Catabolic Enzymes

A

Enzymes that break down larger components into smaller/simpler ones (e.g. pepsin, lipase)

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9
Q

What is an Anabolic Enzymes

A

Enzymes that uses small units to form larger/complex ones (e.g. DNA Polymerase)

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10
Q

Factors that affect Enzyme Activity

A

Temperature, pH

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11
Q

How does temperature affect enzyme activity

A

Raising the temperature would speed up a reaction while lowering the temperature would slow it down. Human enzymes work best at 37 degrees (body temperature)

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11
Q

How does pH affect enzyme activity

A

Enzymes are very sensitive to changes in pH. Enzymes only work at a narrow range (6-8) and if the pH changes, the enzyme can change its specific shape and becomes denatured.

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12
Q

What is Bioprocessing

A

The use of enzyme controlled reactions to produce a product (e.g. Drugs, Vaccines, Antibiotics, Methane Gas, Beer)

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13
Q

What are Immobalised Enzymes

A

Enzymes attached to eachother or an inert

14
Q

Benefits of Immobalised Enzymes

A
  • Can be reused
  • Easy to separate from the product
  • More stable than a natural enzyme
15
Q

Uses for Immobalised Enzymes

A
  • Pharmaceuticals
  • Textiles
  • Food