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22 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Define Inorganic: |
A molecule/ion that has NO more than one carbon atom. |
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Define organic: |
Molecules that have a high proportion of carbon atoms. |
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What cellular processes are Inorganic ions important in? |
Muscle contraction
Nervous coordination
Maintaining osmotic pressure in cells/blood |
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What are the two groups of Inorganic ions? |
Macronutrients Micronutrients |
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What concentrations are macronutrients nutrients needed? |
Small concentrations |
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What concentrations are micronutrients needed? |
In minute (trace) concentrations. |
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Give two examples of micronutrients: |
Copper (Cu) Zinc (Zn) |
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Give four examples of macronutrients: |
Magnesium Iron Phosphate ions Calcium |
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Chemical formula of a magnesium ion: |
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Chemical formula of an iron ion: |
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Chemical formula of a Phosphate ion: |
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Chemical formula of a calcium ion: |
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Why is magnesium important in plants? |
It's an important constituent of chlorophyll, thus essential for photosynthesis. |
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What happens when there isn't enough magnesium in a plants soil? |
The plant cannot make chlorophyll, and the leaves become yellow. This condition: CHLOROSIS. |
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In plants with chlorosis, why is growth often stunted? |
Due to lack of glucose. |
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Why do mammals need magnesium? |
For their bones. |
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Why is iron important in mammals? |
It's an important constituent of haemoglobin, which transports oxygen, in red blood cells, around the body. |
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In the human diet what can a lack of iron lead to? |
Anaemia. |
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What are Phosphate ions used for? |
Making nucleotides, including ATP. |
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What are Phosphate ions a constituent of? |
Phospholipids, found in biological membranes (plasma membranes). |
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Why is calcium important in mammals? |
It's an important structural component of bones/teeth. |
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Why is calcium important in plants? |
It's a component of plant cell walls, providing strength. |
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