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Structure and Transport in Flowering Plants (Transport in Flowering Plants…
Structure and Transport in Flowering Plants
Structure of typical flowering plant
The roots are located below the ground
The shoot is composed of the parts that are above the ground
Parts
Root
Roots anchor and support the plant in the soil
Roots take in (or absorb) water minerals from the soil. The water and minerals pass up through the stem to the leaves where they used by the plant
Some plants store food in their roots
Stem
Stems support or hold up the leaves and flowers
They transport water and minerals from the roots to the leaves and also transport food from the leaves to the roots
Some stems store food
Leaf
Leaves make food in a process called photosynthesis
They allow gases to pass in and out (in daylight carbon dioxide passes in and oxygen passes out)
They allow water vapour to pass out of the plant
Some leaves store food
Buds
A bud is a potential growth point. New leaves or flowers may develop from buds
Flower
The function of a flower is to produce seeds so that the plant can reproduce
Transport in Flowering Plants
Water transport
Water is present in tiny tubes throughout a plant
Tubes allow the flow of water from the roots to the leaves of the plant
Tiny openings (called stomata) on the lower surface of leaves allow water to evaporate form leaves to air
Loss of water is called transpiration
Mineral transport
Minerals are such as nitrogen, phosphorus and potassium are dissolved in water in the soil
Allow them to grow
Minerals pass into the root of plants dissolved in water
Transported around the plant as the water passed through the plant
Food transport
Made in the leaves by photosynthesis
transported throw tubes
Xylem and phloem
Tissues that form continues tubes throughout the plant
Xylem
Transports water and dissolved minerals in plants
Often forms a hard tissue in plants
Phloem
Carries food in plants
Transported in the form of sugar dissolved in water