Plant diseases: Chalara ash dieback | Biology | Quizalize & Oak National Academy

Starter quiz

Which cell is from a plant?

A cell with a nucleus, but without a cell wall.

A cell with a nucleus and a cell wall. ✓

A cell with no nucleus, which stores its DNA in the cytoplasm.
A calcium deficiency can cause which disease in humans?

anaemia

scurvy

rickets ✓
Water and minerals enter a plant through its ...

'roots' ✓
Which plant organelle carries out photosynthesis?

'chloroplast' ✓
What are the products of photosynthesis?

carbon dioxide

glucose ✓

oxygen ✓

water

nitrogen
Match the human disease to the type of pathogen.

athlete's foot

⇔

fungus ✓

malaria

⇔

protist ✓

gonorrhoea

⇔

bacteria ✓

measles

⇔

virus ✓

A microorganism that causes disease is called a ...

gamete.

particle.

pathogen. ✓

plant.

symptom.
Which of the following are examples of microorganisms that can cause disease?

ash

bacteria ✓

barley

fungi ✓

virus ✓
Which plant is infected with ash dieback?

A

B

C ✓
True or false? Chalara ash dieback is caused by a bacterium.

True

False ✓
______ is the variety of living organisms in an ecosystem.

'biodiversity' ✓
Who gives the best description of food security?

Jun: Food security means you can buy everything you need from the supermarket.

Sam: It's the quality and quantity of food available to everyone in a community. ✓

Izzy: Food security means most people can afford to buy enough food.

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Plant health can be affected by pathogens.
Chalara ash dieback is an example of a disease in plants caused by a fungus.
Ways in which plant diseases can be spread, and ways in which the spread can be reduced.
Impacts of ash dieback on biodiversity, including through habitat destruction.

Only human and other animals can catch diseases. Plant diseases are not important.

This lesson explores examples of plant diseases, the pathogens that cause them and how they are spread, and their devastating impacts.

Virus - A non-living infectious agent that replicates inside a host cell.
Fungus - A eukaryotic, spore-producing organism that feeds on organic matter.
Food security - A measure of the quantity and quality of food available to support households and whole communities.
Biodiversity - Variety of living organisms within an ecosystem.