Erstellt von Jin Braicovic
vor mehr als 8 Jahre
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Frage | Antworten |
xylem | transports water up from the roots throughout the plant |
phloem | transports sugars from source tissues to sink tissues (leaves to roots) |
function of the leaves | to catch sunlight, convert energy to chemical energy to use as food (photosynthesis) |
function of roots | -absorption of water -anchoring plants to ground -support -storage of food/ nutrients -vegetative reproduction |
cuticle | -waxy layer covering the leaf surface -reduces evaporation and drying out |
epidermis | -layer of cells on the upper and lower surfaces of the leaf -clear layer of cells to allow light in |
palisade mesophyll | -densely packed photosynthesis cells - main site of photosynthesis, packed with chloroplasts |
spongey mesophyll | -loosely packed photosynthetic cells -main area for gas exchange in leaf |
vascular bundles | -xylem and phloem tissue -xylem carries water to leaves. phloem carries sucrose from leaves to other parts of plants |
guard cells | -cells of the stomata -control opening and closing of stomata |
stomata | -openings in the epidermis -allow gases and water vapour in and out |
cross section of a leaf | |
cross section of a stem | |
longitudinal section of a root |
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