flower leaf stem roots, Study notes of Plant Taxonomy and Evolution

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flower

leaf

stem

roots

WHAT JOB DOES

EACH PART OF A

PLANT DO?

Photo: rodtuk Roots can spread out over a wide area to collect water and nutrients. Here the soil has been eroded, exposing the roots.

Photo: pin add Photo: John Morgan

Root vegetables

such as beetroot,

turnip and swede

store food in their

roots.

Roots are needed to:

• anchor the plant in the ground
• collect water
• collect nutrients (food) from the soil
• or sometimes they store food.

Photo: DM Leaves use sunlight for photosynthesis, which is the process of a plant making its food.

Photo: James Emery This tree has a disease which has killed the leaves of its upper branches. If all the leaves die, the tree will die too, as it cannot make food for itself. Leaves are needed for:

• Making food for the plant
• Exchanging gases in the air – they take in carbon dioxide and give out oxygen
• Getting rid of water
• Sometimes for storing water

Photo: Gideon Chilton Photo: Alan Cleaver

Ivy stems attach

themselves to

walls, fences and

other plants

A stem is used to:

• Support the leaves
• Transport things

around the plant

like food, gases or

water.

What do plants need?

Plants Need

Water Light

Food

Suitable

Temperature

Air

Different plants need different temperatures. Photo: MadOrchidist Frost damage – this flower needed warmer conditions to thrive. Water – some plants adapt to cope with small amounts of water but most need regular water. Plants need sunlight and the gases in the air to produce food.