Minerals + Nitrogen Fixing Bacteria

Question 1

Explain the importance of nitrogen in plants.

Answer 1

1. Derived from nitrates
2. Create amino acids, which join together and form proteins
3. These proteins are used for cell growth.
4. Yellowing of leaves and stunted growth (some green still there though)

Question 2

Explain the importance of magnesium in plants.

Answer 2

1. Derived from magnesium salts
2. Makes chloroplast for molecules
3. Used during photosynthesis
4. Yellowing of leaves

Question 3

Explain the importance of potassium in plants.

Answer 3

1. To help the enzymes in processes.
2. Helps in photosynthesis and respiration using these enzymes.
3. Brown at the edge of the leaves

Question 4

Explain the importance of phosphate in plants.

Answer 4

1. Provide phosphorus for DNA and cell membrane
2. For respiration and growth
3. Purple/pink in the edge of the leaves

Question 5

What are legumes?

Answer 5

1. They can grow very well in nitrate deficient soil
2. They can do this as have root nodules
3. Root nodules contain bacteria
4. These bacteria convert nitrogen (from the air) to nitrates, which can be used to make amino acids.
5. These acids link together to form protein
6. Nitrogen is converted to ammonia and then into amino acids as plants cannot take in nitrogen directly.