Why do plants need nitrate ions?

To provide nitrogen for making amino acids , which are used to build proteins.

Why do plants need magnesium ions?

To make chlorophyll , which is needed for photosynthesis.

Plants absorb nitrogen from the soil in the form of nitrate ions.

Reduced growth , because the plant cannot make enough amino acids and proteins.

Yellow leaves (no chlorophyll) and reduced growth due to less photosynthesis.

A plant lacking magnesium cannot make chlorophyll , so its leaves turn yellow.

By active transport through the root hair cells .

Any naturally occurring inorganic substance; plants absorb minerals as ions from the soil.

False. Magnesium is needed to make chlorophyll; nitrate provides nitrogen for amino acids and proteins.

Photosynthesis only makes carbohydrates; the plant also needs mineral ions (e.g. nitrate and magnesium) to make proteins and chlorophyll.

Exam code: 5090

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Why do plants need nitrate ions?
To provide nitrogen for making amino acids, which are used to build proteins.
Why do plants need magnesium ions?
To make chlorophyll, which is needed for photosynthesis.
Plants absorb nitrogen from the soil in the form of ions.
Plants absorb nitrogen from the soil in the form of nitrate ions.
What are the symptoms of nitrate deficiency in a plant?
Reduced growth, because the plant cannot make enough amino acids and proteins.
What are the symptoms of magnesium deficiency in a plant?
Yellow leaves (no chlorophyll) and reduced growth due to less photosynthesis.
A plant lacking magnesium cannot make , so its leaves turn yellow.
A plant lacking magnesium cannot make chlorophyll, so its leaves turn yellow.
How do plants take up mineral ions from the soil?
By active transport through the root hair cells.
Define a mineral.
Any naturally occurring inorganic substance; plants absorb minerals as ions from the soil.
True or False?
Nitrate ions are needed by plants to make chlorophyll.
False.
Magnesium is needed to make chlorophyll; nitrate provides nitrogen for amino acids and proteins.
Why can't a plant make all the molecules it needs from photosynthesis alone?
Photosynthesis only makes carbohydrates; the plant also needs mineral ions (e.g. nitrate and magnesium) to make proteins and chlorophyll.

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