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Plant/Photosynthesis
review for test
25
Biology
9th Grade
11/29/2011

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Term
Bryophytes
Definition
plants that DON'T have vascular (xylem/phloem) tissue no true roots, stems, and leaves.
Term
phototropism
Definition
grow towards light. (tropism)
Term
geotropism
Definition
grow towards ground (tropism)
Term
hydrotropism
Definition
grow towards water (tropism)
Term
auxins
Definition
hormones that influence plant growth
Term
tracheophytes
Definition
plants that DO contain vascular tissue. also contain true roots, stems, and leaves.
Term
transpirational pull
Definition
water pulled by transpiration (evaporation of trees). water goes cohesive and adhesive
Term
epidermis
Definition
provides protection. out cell layer of leaf.
Term
cuticle/waxy layer
Definition
out layer, prevents water loss
Term
chloroplast
Definition
organelles found in plants or leaves. contains chlorophyll. where photosynthesis happens.
Term
roots
Definition
anchorage/storage of nutrients, absorption of water and salts.
Term
xylem
Definition
conducts water up from roots to leaves only up
Term
phloem
Definition
conducts sugar up AND down leaves.
Term
spongy layer
Definition
exchange and circulation 0f gasses occurs here. open spaces. oval shaped
Term
palisades layer
Definition
most photosynthesis occurs here. below the upper epidermis
Term
stomates
Definition
opening in cuticle
Term
guard cells
Definition
open ad closes stomates. decides what comes in and what goes out.
Term
best wavelengths for photosynthesis
Definition
blue and red
Term
equation for photosynthesis
Definition
CO2 + H2O ---> C6 H12 O6 + H2O + O2
Term
light reaction
Definition
energy used to split water molecules in the granna.
Term
dark reaction
Definition
from of 3 carbon sugars in the granna
Term
light reaction =?
Definition
photolysis
Term
dark reaction=?
Definition
carbon fixation
Term
PGAL=?
Definition
3 carbon sugars that become glucose
Term
glucose=?
Definition
sugar!
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