Lesson 3 of Ecosystems(This is the first of this week’s 2 lessons)

There are questions and activities for you to try to answer and then on the next page you will find the answers. Please make sure you have a try first! Where you see the pencil picture you can put that work into your book or on paper.

If you are having any problems or if there is anything that you do not understand (or you would like to show me your work) then please email me

m.healy@bishopchalloner.bham.sch.uk

Learning intentions

To know some plant minerals

To understand where plants get minerals from

To be able to explain what happens when plants do not get enough minerals

Plant minerals

What do you think could be the link between these two pictures?

• They are both showing a mineral deficiency . This means the organism is not getting, or cannot absorb a mineral or vitamin.

• The bones are deficient in calcium, which means the bones have pores in them (holes), causing a disease called osteoporosis.

• The leaves are deficient in a plant mineral causing the leaves to be yellow instead of green.

The answer is………

Leaves quick quiz – which is the correct answer for each question?

1) The cells that open and close the stomata are called…

a) Palisade cells

b) Guard cells

c) Stomata cells

2) Which 2 reactants are needed for photosynthesis?

a) Oxygen and water

b) Carbon dioxide and water

c) Carbon dioxide and glucose

3) Leaves have a large surface area to…

a) Increase reflection of sunlight

b) Increase absorption of nutrients

c) Increase absorption of sunlight

Leaves quick quiz

1) The cells that open and close the stomata are called…

a) Palisade cells

b) Guard cells

c) Stomata cells

2) Which 2 reactants are needed for photosynthesis?

a) Oxygen and water

b) Carbon dioxide and water

c) Carbon dioxide and glucose

3) Leaves have a large surface area to…

a) Increase reflection of sunlight

b) Increase absorption of nutrients

c) Increase absorption of sunlight

Plant minerals (try to answer the questions first before moving on)

Plants get minerals from the soil – the minerals are dissolved in water in the soil

The minerals are absorbed into the root hair cells in the roots.

Plant minerals

Plant minerals

Plants need minerals for…

Healthy growth

Healthy roots

Healthy leaves and flowers

Making chlorophyll

Plant minerals

Plants need minerals for…

Healthy growth

Healthy roots

Healthy leaves and flowers

Making chlorophyll

Nitrates (contain nitrogen)

Phosphates (contain phosphorus)

Potassium

Magnesium

Each of these plants are deficient in a different mineral. You will be given some information and then you will be asked to work out which plant is missing which mineral.

What happens if a plant does not get enough minerals?

poor growth and yellow older leaves

Nitrates

If a plant does not get: Symptoms

Magnesium

poor root growth, purple-looking young leaves

Phosphates

Potassium leaves turn yellow

yellow leaves with dead patches

(needed for chlorophyll)

(needed for healthy growth)

(needed for healthy roots)

(needed for healthy leaves)

Match up the

deficiency with the symptom

What happens if a plant does not get enough minerals?

poor growth and yellow older leaves

Nitrates

If a plant does not get: Symptoms

Magnesium

poor root growth, purple-looking young leaves

Phosphates

Potassium

leaves turn yellow

yellow leaves with dead patches

(needed for chlorophyll)

(needed for healthy growth)

(needed for healthy roots)

(needed for healthy leaves)

Can you work out which mineral each plant is deficient in?

Plant minerals

To remain healthy, plants need to absorb _________

from the soil.

They are absorbed through the _____ hair cells and then

travel around the plant.

The mineral _________ is needed to make chlorophyll,

and _________ are needed for healthy growth.

magnesium root nitrates minerals

Why would farmers use this fertiliser?

Fertilisers

NPK is a common fertiliser.What do you think NPK

stands for? (Think of the important

minerals plants need)

(try to answer the questions first before moving on)

N – NitratesP – PhosphatesK - Potassium

Why would farmers use this fertiliser?

Fertilisers

NPK is a common fertiliser.What do you think NPK

stands for? (Think of the important

minerals plants need)

What is a fertiliser?

What sorts of chemicals might be found in a fertiliser?

What are the used for?Why are they used?

(try to answer the questions first before moving on)

What is a fertiliser?A substance containing plant minerals that

we can add to soil to increase mineral concentration

What sorts of chemicals might be found in a fertiliser?

Nitrogen, phosphorus, potassium and sometimes magnesium

What are the used for?They are used to give plants the minerals

they need for healthy growthWhy are they used?

Sometimes the soil may not contain enough of these minerals naturally

What is the difference between an artificial and a natural fertiliser?

Find out before you begin the next lesson

Plant mineralsLearning intentions

To know some plant minerals

To understand where plants get minerals from

To be able to explain what happens when plants do not get enough minerals

Do you know your plant minerals?

Do you know your plant minerals?