Proteins-their functions and uses Flashcards

1
Q

What have functions, both inside, and outside of cells?

A

Proteins.

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2
Q

Proteins, as enzymes, are used widely in what industry?

A

Home goods.

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3
Q

Protein molecules are made up of

A

long chains of amino acids.

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4
Q

What happens to the amino acids in order for molecules to fit into specific proteins?

A

They’re folded to shape.

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5
Q

what can ezymes also be used for(in chemical reactions)

A

Biological catalysts.

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6
Q

Four things proteins can act as

A

Structures of tissues such as muscle.
Hormones.
Antibodies.
Catalysts.

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7
Q

Catalysts………the rate of reaction.

A

Increase.

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8
Q

enzymes are also called

A

proteins.

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9
Q

biological catalysts are called……..and they enable the vast majority of………….in cells

A

enzymes.

chemical reactions.

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10
Q

what factor is vital for the enyme’s function?

A

The shape.

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11
Q

Explain what they ‘lock and key mechanism’ is

A

That molecules being processed must fit well into the right shaped enzyme protein molecule, otherwise it won’t be changed into the product molecule.

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12
Q

What is likely to change the shape of an enzyme?

A

Temperature.

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13
Q

What is it called when enzymes change shape from their original state?

A

Denatured.

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14
Q

optimum temperature for enzymes in the human body

A

37 degrees Celsius.

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15
Q

Where is the enzyme’s ‘active site’?

A

The area where the substrate molecule slots into the protein molecule.

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16
Q

How does PH effect the enzymes?

A

They generally work best in neutral environments(PH7) although some work best in acidic or alkaline conditions.

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17
Q

Name a protein that works best in high PH

A

Trypsin.

18
Q

Protein that works best in low PH

A

Pepsin.

19
Q

Protein that works best in neutral conditions

A

Carbonic hydrase.

20
Q

Digestive enzymes are produced by specialist cells in glands in the…

A

Lining of the gut.

21
Q

Name three enzymes

A

Protease, lipase and carbohydrase

22
Q

Protease breaks down

A

Protein

23
Q

Protein is broken down into

A

Amino acids

24
Q

Lipase breaks down

A

Lipids

25
Q

Lipids are broken down into

A

Fatty acids and glycerol

26
Q

Carbohydrase break down

A

Carbohydrates

27
Q

Carbohydrates are broken down into

A

Sugar

28
Q

Protease can be used in

A

Baby food

29
Q

Too much glucose

A

Pancreas releases insulin into the blood so that the liver stores glucose as glycogen.

30
Q

Not enough glucose

A

Pancreas releases glucagon to break down the glycogen so we can then use it(respiration usually)

31
Q

What part of the body contains amylase?

A

The saliva.

32
Q

What is the job of amylase?

A

Digests starch into smaller sugars.

33
Q

What organ produces bile?

A

The liver.

34
Q

Where is bile stored?

A

Gall bladder.

35
Q

Organ that bile is released into

A

Small intestine

36
Q

What PH is bile?

A

High(alkali)

37
Q

What PH is stomach acid?

A

Low(acidic)

38
Q

What protects the lining of our stomach from pepsin and stomach acid?

A

Mucus

39
Q

Advantages to using biological detergents

A

More efficient at removing stains.

Lower washing temperatures can be used, saving energy.

40
Q

Disadvantages to biological catalysts

A

If the clothes aren’t fully washed, the enzymes will remain on the skin and digest skin proteins.
Can lead to irritation, allergies and dermatitis.

41
Q

Isomerise can be used in

A

Slimming foods.