Inorganic ions (2) Flashcards

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1
Q

What are inorganic ions?

A

ions that do not contain carbon atoms

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2
Q

Where are inorganic ions found?

A
  • in cytoplasm + extracellular fluid
  • may be in high or low concentrations
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3
Q

What are the 4 types of inorganic ions?

A

1) hydrogen ions
2) iron ions
3) sodium ions
4) phosphate ions

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4
Q

What is the role of hydrogen ions?

A

interact with h-bonds + ionic bonds in tertiary structure of proteins, which can cause them to denature

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5
Q

What is the role of iron ions?

A

form haem group in haemoglobin

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6
Q

What is the role of sodium ions?

A
  • involved in co-transport for absorption of glucose + amino acids in lumen of gut
  • involved in propagation of action potentials in neurons
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7
Q

What is the role of phosphate ions?

A

component of DNA, ATP, NADP and cAMP

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8
Q

What is the structure of a haem group?

A

binding site to transport 1 molecule of oxygen around body via bloodstream

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9
Q

What is the structure of haemoglobin?

A

4 haem groups

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10
Q

What causes a low pH?

A

high concentration of hydrogen ions

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11
Q

What happens if there is a high concentration of hydrogen ions?

A

low pH

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