Leaf Structure

Cuticle

provides a waterproof barrier that protects the tissues and prevents loss of water through the leaves; not actually made of cells but is secreted by the upper epidermis cells

vascular tissue create the vascular ______ and consists of ___ and ___

bundle; xylem and phloem

xylem

a continuous set of tubes that stretch from roots, up thro the stem and into the mesophyll of the leaf; carries water and minerals upward (carries water from the roots to the leaves of the plant)

phloem

vascular tissue responsible for the transport of nutrients and carbohydrates from the leaves throughout the plant

mesophyll

tissue that makes up the bulk of the leaf, photosynthesis occurs here

palisade mesophyll layer

contains many cholorophyll to maximize photosynthetic

yakuza is cool too

Stomata are ______________ between two guard cells. tonight

guard cells

cells that control the opening and closing of the stomata

guard cells respond to ____

changes in water pressure, called turgid pressure, because they are filled with water

suzuki

the loss of water through the stomata in leaves; a form of evaporation _____

photosynthesis

plants keep their stomata open long enough to carry out this chemical reaction.

chloroplasts

photosynthesis occurs in this organelle

petiole

the slender stem that supports the blade of a leaf,
connects a leaf to a plant stem

waxy

The cuticle seals water into leaf because it is _______ and made out of lipids

epidermis

single layer of non-photosynthetic cells that protects the leaf (outer layer) from invasion

meso

word part which means "middle"

phyll

word part which means "leaf"

palisade mesophyll

long thin cells that make most of the plant's food

spongy mesophyll

irregular shaped cells that make food for the plant

stomata (singular: stoma)

openings in the epidermis that allow gases (oxygen and carbon dioxide) in or out and prevents water loss

vein

carries materials to and from the leaf; another term for the vascular bundle of the leaf

carbon dioxide

gas which enters the leaf throught the stomata; key reactant for photosynthesis

chloroplasts

organelles which make the food; many are found in the palisade and spongy mesophyll cells

blade

thin, flattened section of a plant leaf that collects sunlight

air space

space in the spongy mesophyll for the carbon dioxide that enters and oxygen collects

carbon dioxide, oxygen and water

leaves take in ___ and give off ___ through their stoma

lower epidermis

Stomata are located in the _____________, which is on the underside of the leaf

spongy mesophyll

one of the middle layers of leaf tissue that is photosynthetic and filled with air spaces for gas exchange