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3.1 Biological Molecules (A Level Biology) > 3.1.8 Inorganic Ions > Flashcards

3.1.8 Inorganic Ions Flashcards

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1
Q

Inorganic ions are ions that don’t contain…

A

Carbon

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2
Q

True or false, there are a few exceptions of inorganic ions that contain carbon

A

True

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3
Q

Inorganic ions each have a specific role depending on their…

A

Properties

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4
Q

2 parts of organisms where inorganic ions can be found are in… and…

A

Solution in the cytoplasm of cells
In bodily fluids

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5
Q

2 parts of organisms where inorganic ions can be found are in bodily fluids and in..

A

Solution in the cytoplasm of cells

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6
Q

2 parts of organisms where inorganic ions can be found are in solution in the cytoplasm of cells and in…

A

Bodily fluids

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7
Q

…determines whether an inorganic ion is found in high or low concentrations

A

An inorganic ion’s role (and its role depends on its properties)

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8
Q

Haemoglobin is made up of 4…

A

Polypeptide chains

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9
Q

Haemoglobin is a large p….

A

Protein

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10
Q

Haemoglobin is a large…that carries oxygen around the body

A

Protein

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11
Q

Haemoglobin is made up of 4 polypeptide chains, each with an…. ion in its centre

A

Iron

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12
Q

What part of Haemoglobin binds to oxygen

A

Iron ion

(There are 4 iron ions per Haemoglobin as each Haemoglobin is made up of 4 polypeptide chains and each polypeptide chain has an iron ion in its centre)

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13
Q

The…of hydrogen ions in the environment determine PH

A

Concentration

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14
Q

4 key inorganic ions (ions that don’t contain carbon) that I need to learn are…

A

Iron ions
Hydrogen ions
Sodium ions
Phosphate ions

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15
Q

The more H+ ions that are present (higher concentration), the… the PH

A

Lower
(Which makes the environment more acidic)

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16
Q

Hydrogen ions are important because their concentration determines the … of an environment and PH affects enzyme- controlled reactions

A

PH

17
Q

True or false, PH affects enzyme controlled reactions

A

True
(And PH is determined by concentration of hydrogen ions)

18
Q

Sodium ions help…and…to cross the cell membrane

A

Glucose
Amino acids

19
Q

Name for where sodium ions help amino acids and glucose to cross cell membranes in order to enter the cell

A

Co transport

20
Q

Co transport is where…

A

Sodium ions help amino acids and glucose to cross the cell membrane in order to enter the cell

21
Q

…ions play a key role in co transport as they help amino acids and glucose to cross the cell membrane in order to enter the cell

A

Sodium

22
Q

…ions play a key role in co transport as they help amino acids and glucose to cross the cell membrane in order to enter the cell

A

Sodium

23
Q

In ATP, the bonds between phosphate groups store…

A

Energy

24
Q

Phosphate groups make up DNA, RNA and…

A

ATP

25
Q

Phosphate groups make up DNA, … and ATP

A

RNA

26
Q

Phosphate groups make up …, RNA and ATP

A

DNA

27
Q

6 most common elements in living organisms

A

Oxygen
Carbon
Hydrogen
Phosphorus
Nitrogen
Sulphur

28
Q

An inorganic ion’s role depends on its…

A

Properties

29
Q

Chemical formula of iron ion in Haemoglobin (found in centre of polypeptide chains)

A

Fe^2+

30
Q

Fe^2+ vs Fe^3+ when looking at role of iron ions in Haemoglobin

A

Fe^2+ ions are found in the centre if the polypeptide chains in the Haemoglobin and bind to oxygen
Once bonded to oxygen, Fe^2+ temporarily becomes Fe^3+until oxygen is released

31
Q

In the Haemoglobin, the …temporarily becomes ….when it binds to oxygen (until the oxygen is released)

A

Fe^2+
Fe^3+

32
Q

In the Haemoglobin, the …temporarily becomes ….when it binds to oxygen (until the oxygen is released)

A

Fe^2+
Fe^3+

33
Q

When a phosphate ion is attached to another molecule it’s known as a…

A

Phosphate group

34
Q

Phosphate groups in DNA and RNA allow nucleotides to join up to form…

A

Polynucleotides

35
Q

Phosphate groups in DNA and RNA allow …to join up to form polynucleotides

A

Nucleotides

3.1 Biological Molecules (A Level Biology) (6 decks)

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