Topic 1.1.1 - Bonding and ions Flashcards

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1
Q

What is ionic bonding?

A

When metals lose electrons to become a cation and non-metals gain electrons to become an anion

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2
Q

What is covalent bonding?

A

2 non-metals achieving full outer shells by sharing electrons, the result is a molecule

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3
Q

What is an inorganic ion?

A

An ion that doesn’t contain carbon and is important in biological processes

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4
Q

Nitrate ions?

A

Plants need them to form amino acids to make proteins.

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5
Q

Phosphate ions?

A

Needed for the formation of ATP,ADP, DNA and RNA. Also needed in photosynthesis and respiration.

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6
Q

What does ATP do?

A

Carries energy within cells

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7
Q

Chloride ions?

A

Needed at the synapse for nerve impulses and helps maintain the pH of the blood during gas exchange

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8
Q

Hydrogen Carbonate ions?

A

Needed for buffering the blood. (Keeping it at a stable PH)

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9
Q

Sodium ions?

A

Needed for generating nerve impulses

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10
Q

Calcium ions?

A

Needed for bone formation and involved in the release of insulin from the pancreas

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11
Q

Potassium ions?

A

Needed for generating nerve impulses and muscle contraction

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12
Q

Ammonium ions?

A

Important source of nitrogen for plants which is used to make amino acids

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13
Q

Hydroxide ions?

A

Affects pH

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14
Q

Hydrogen ions?

A

Needed for photosynthesis and respiration as well as pH balance

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15
Q

Magnesium ions?

A

Needed for the production of chlorophyll in plants

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16
Q

Why does water have high surface tension?

A

Polar molecule
Forms hydrogen bonds
Results in an inward force at surface