Plant Structure And Transport Flashcards
The root
Anchors the plant into the ground and gives support
Takes in water and minerals from the soil
Some roots store food, e.g. turnips, carrots
The stem
Holds up the leaves,flowers and fruits
Carries water and minerals from the roots to the leaves and flowers
Carries food made in the leaves to other parts of the plants
The leaves
Makes food and oxygen in the process of photosynthesis
Allows the exchange of oxygen and carbon dioxide gases
Allows the loss of water vapour
The flower
Sexual reproduction
Produces seeds
Transport tissues
Xylem
Phloem
Xylem
Transports water and minerals up the plant
Phloem
Transports food up and down the plant
Passage of water and minerals up a plant
Water is taken into the roots of a plant through the soil
It travels up the stem to the leaves in the water transporting tissue (xylem)
Some of the water is used up to make food in photosynthesis in the leaves
The remaining water passes out the leaves
Transpiration
Transpiration is the loss of water vapour from the surface of a plant
Takes place through tiny holes in the leaves called stomata
As water is lost from the leaves more is drawn up from the roots
Transpiration stream
The movement of water up the plant
Functions of transpiration
Brings water needed for photosynthesis from the roots to the leaves
Carries dissolved minerals up the plant
Cools the plant