plant cell organisation Flashcards
leaf is an organ made up of different _____-?
leaf is an organ made up of different tissues
in the top and bottom of the leaf we find ____?
epidermal tissue
epidermis protects _____ of leaf
epidermis protects surface of leaf
what is the upper epidermis covered in ?
the upper epidermis is covered in waxy cuticle
what does the waxy cuticle do?
helps reduce water loss from leaf surface
the upper epidermis is transparent, what does this do for the leaf?
allows light to pass through to photosynthetic cells for photosynthesis
how is the lower epidermic specialised?
contains spores called stomata, which allows co2 and oxygen out
palisade mesophyll contain what type of cells?
palisade cells
palisade cells are packed full of what?
palisade cells are packed full of chloroplasts
what do do chloroplasts contain and why is this important?
contain chlorophyll, which absorbs light for photosynthesis
_______ mesophyll is full of air spaces?
spongy mesophyll is full of air spaces
spongy mesophyll allows co2 to diffuse in through?
stomata -> spongy mesophyll -> palisade mesophyll
spongy mesophyll allows oxygen to diffuse out through?
palisade mesophyll -> spongy mesophyll -> stomata
xylem tissue transports dissolved ________ ___ from roots to leaves?
xylem tissue transports dissolved mineral ions from roots to leaves
phloem tissue transports dissolved ______ produced by photosynthesis from leaves to rest of plant?
phloem tissue transports dissolved sugars produced by photosynthesis from leaves to rest of plant