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Bio Y9 EOY > Biological molecules > Flashcards

Biological molecules Flashcards

1
Q

Elements in carbohydrates

A

carbon, hydrogen, oxygen

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2
Q

Function of carbohydrates

A

Source of energy

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3
Q

Monomer carbohydrate

A

glucose

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4
Q

Polymer carbohydrate

A

starch

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5
Q

Example of carbohydrate

A

sugar

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6
Q

Elements of proteins

A

carbon, hydrogen, oxygen, nitrogen

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7
Q

Function of proteins

A

Growth –> repairing cells

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8
Q

Monomer protein

A

amino acid

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9
Q

Polymer protein

A

polypeptide chain

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10
Q

Example of protein

A

haemoglobin

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11
Q

Elements of lipids

A

carbon, hydrogen, oxygen

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12
Q

Function of lipids

A

protection, energy storage, cell membrane

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13
Q

Composition of lipids

A

3 fatty acids + 1 glycerol

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14
Q

Example of lipid

A

oil

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15
Q

Structure of carbohydrates

A

large molecules made up of small simple sugars

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16
Q

Structure of proteins

A

large molecules made up of amino acids

17
Q

What test is iodine used for?

A

carbohydrates

18
Q

What is the colour of iodine when the molecule is present?

A

blue/black

19
Q

What is the colour of iodine when the molecule isn’t present?

A

brown/orange

20
Q

What test is Benedict’s solution used for?

A

glucose

21
Q

What is the colour of Benedict’s solution when the molecule is present?

A

orange/red

22
Q

What is the colour of Benedict’s solution when the molecule isn’t present?

A

blue

23
Q

What test is the Biuret reagent used for?

A

proteins

24
Q

What is the colour of the Biuret reagent when the molecule is present?

A

purple

25
Q

What is the colour of the Biuret Reagent solution when the molecule isn’t present?

A

blue

26
Q

What test is the emulsion used for?

A

lipids

27
Q

What is the colour of the emulsion when the molecule is present?

A

cloudy white

28
Q

What is the colour of the emulsion when the molecule isn’t present?

A

transparent

Bio Y9 EOY (6 decks)

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