Minerals and Plants

Learning objectivesTo know that plants need minerals for healthy growth.To know some of the symptoms of mineral deficiencies.To know that plants take up minerals by active transport against the concetration gradient

Learning Outcomes

• All students can describe how plants absorb minerals from the roots .

• All students can explain why plants need a variety of minerals fro healthy growth.

• Most students can identify two mineral deficiencies in plants.

• Some students can explain how plants take up minerals by active transport.

WALT: To know that plants need minerals for healthy growth and to

know some of the symptoms of mineral deficiencies

• WILF• All students can describe how plants

absorb minerals from the roots .

• Most students can explain why plants need a variety of minerals for healthy growth.

• Some can analyse the data from an experiment and relate it to active transport and their knowledge and understanding of minerals.

What is active transport?

Mineral uptake by root hair cells

• Root hair cells take up dissolved against the concentration gradient.

• They can absorb them from a lower concentration in the soil by active transport ( energy obtained from respiration).

• Minerals are transported up the plant in xylem.

WILF All students can describe how plants absorb minerals from the roots .

RED

AMBER

GREEN

Mineral ions are used by plants for growth and to build new cells.

making proteins for growth

respiration and making roots

respiration and photosynthesis

making chlorophyll

Mineral element How mineral is used in plants

nitrogen (N)

phosphorus (P)

potassium (K)

magnesium (Mg)

What are minerals used for?

Plants need a variety of minerals because they are used by the plant in different ways.

How do minerals affect cell formation?

nitrogen is needed to make amino acids and proteins

phosphorus is needed to make DNA and cell membranes

potassium helps enzymes work during photosynthesis

magnesium is needed to make chlorophyll.

Which mineral?

Most students can explain why plants need a variety of minerals for healthy

growth.

RED

AMBER

GREEN

Plants do not grow properly and begin to look unhealthy if they are deprived of minerals.

If a plant does not get enough of a mineral it is said to have a mineral deficiency.

What happens when plants do not get minerals?

Mineral deficiencies and plant growth

Mineral deficiency

Task

• To complete the questions on the active transport work sheet to demonstrate that you can evaluate data and draw conclusions based on your scientific knowledge and understanding

Homework

To revise cells and plants for an assessment next lesson