Enzymes Flashcards

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0
Q

Enzymes monomers are?

A

Amino acids

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1
Q

What are enzymes?

A

Enzymes are proteins that help molecules react with one another

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2
Q

Enzymes are used by cells to do what?

A

Cells to trigger and control chemical reactions

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3
Q

Without enzymes what would happen?

A

Several reactions in cells would never occur or happen too slowly to be useful

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4
Q

What is a chemical reaction?

A

It’s the process of changing one set of chemicals into another set of chemicals by rearranging the atoms

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5
Q

In a chemical reaction what is broken to form the products?

A

The reactants bonds are broken

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6
Q

What is a catalyst?

A

It’s a substance that speeds up the rate of a chemical reaction

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7
Q

A catalyst lowers what?

A

Lowers the activation energy

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8
Q

A catalyst participates in the reaction but does do what?

A

It doesn’t change itself

To be used over and over again

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9
Q

What is activation energy

A

It’s the amount of energy needed to start a chemical reaction

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10
Q

Catalysts speed up chemical reactions by?

A

Lowering the activation energy

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11
Q

Enzymes are catalyst because they?

A

They lower the activation energy by holding molecules together to either help them bind or help them break apart

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12
Q

To bind means to?

A

Synthesize

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13
Q

To break apart means to?

A

Decompose

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14
Q

What is a substrate?

A

Enzymes bind to or break molecules called substrates

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15
Q

Substrates are the?

A

Reactants that are catalyzed by the enzyme

16
Q

What is the active site?

A

Each substrate and enzyme has a specific shape, therefore enzymes bind to substrates base on SHAPE

The site on the enzyme where the substrates bind

17
Q

What is the Lock and Key Hypothesis?

A

Enzymes bind to the substrates based on their complementary shape

The fit is so exact, that the active site and substrates are compared to a lock and key

18
Q

Most digestive enzymes are names for the?

A

The foods(molecules) they help react

19
Q

What are other examples of enzymes and what they break down?

A
Lactase 
Sucrase 
Amalyse
Lipase 
Pepsin
20
Q

Lactase breaks down what?

A

Lactase-breaks down lactose into glucose and galactose

21
Q

Sucrose breaks down?

A

Sucrase-breaks down sucrose(table sugar) into glucose and fructose

22
Q

Lipase breaks down?

A

Breaks down Ats

23
Q

Pepsin breaks down?

A

Breaks down proteins

24
Q

How are enzymes affected by the reaction?

A

Enzymes are NOT changed by the reactions, they catalyze

25
Q

How can enzymes be affected?

A

They work best at a specific temperature

Bad temperatures can cause enzymes to break down or change shape

26
Q

The break down of enzymes is called?

A

Denaturation

27
Q

Why are enzymes considered the body’s “workers”?

A

Nearly every reaction in your body is helped by an enzyme