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Biology - mr stonehouse > module 2 - 3.1 biological molecules and ions > Flashcards

module 2 - 3.1 biological molecules and ions Flashcards

1
Q

what is the calcium ion necessary for?

A

nerve impulses
cell function

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2
Q

what is the sodium ion necessary for?

A

nerve impulses
regulating blood pressure, volume and pH

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3
Q

what is the potassium ion necessary for?

A

helps nerves to function
muscle contractions

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4
Q

what is the hydrogen ion necessary for?

A

catalysts
digests food in stomach

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5
Q

what is the ammonium ion necessary for?

A

make nitrate ions (fertilisers)

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6
Q

what are calcium, sodium, potassium, hydrogen and ammonium all known as?

A

cations

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7
Q

what is nitrate necessary for?

A

forms amino acids
builds proteins

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8
Q

what is nitrate necessary for?

A

forms amino acids
builds proteins

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9
Q

what is hydrogen carbonate necessary for?

A

maintains blood pH

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10
Q

what is the phosphate necessary for?

A

balances sodium and potassium ions in cells

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11
Q

what is the hydroxide necessary for?

A

catalysts

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12
Q

what are nitrate, hydrogen carbonate, chloride, phosphate and hydroxide all known as?

A

anions

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13
Q

what does sulphur dioxide cause?

A

acid rain

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14
Q

what is phosphorus?

A

backbone of DNA (sugar phosphates)

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15
Q

what is the equation for photosynthesis?

A

carbon dioxide + water -> oxygen + glucose

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16
Q

what is the equation for respiration?

A

glucose + oxygen -> water + carbon dioxide

17
Q

what are the different forms of carbon?

A

graphene, graphite, diamond

18
Q

what is iron?

A

found in red blood cells (which have a biconcave disc and no nucleus for larger surface area to carry more haemoglobin)

19
Q

what is the formula for hydrogen?

A

H2

20
Q

what is the formula for carbon dioxide?

A

CO2

21
Q

what is the formula for water?

A

H2O

22
Q

what is the formula for methane?

A

CH4

23
Q

what is the formula for ammonia?

A

NH3

Biology - mr stonehouse (60 decks)

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