photosynthesis Flashcards
palisade mesophyll
layer of the leaf where photosynthesis occurs most because of the direct access to sunllight - palisade: column
spongy mesophyll
other layer of the leaf where photosynthesis occurs, but not as much as palisade mesophyll since it doesn’t get as much direct access to sunlight.
xylem
part of the vascular bundle/vein, transports H20 + minerals
phloem
part of the vascular bundle/vein, transports food/glucose
cuticle
waxy covering of the leaf to prevent evaporation of H20/dehydration
epidermis
layer between cuticle and palisade mesophyll - another protective layer
stoma(ta)/guard cell
open + close:
- gas exchange (O2 out, CO2 in)
- H2O leaves (transpiration)
which parts of the leaf do photosynthesis?
palisade mesophyll + spongy mesophyll
equation for photosynthesis
6H2O + 6CO2 + light energy –> C6H12O6 + 6O2
what is the pigment that absorbs light energy + where is it?
chlorophyll, located within the chloroplast, within the thylakoids
stroma
space inside the chloroplast
grana
multiple granums
granum
stack of thylakoids
thylakoid
singular disk that forms the stacked granum + multiple grana
what color does chlorophyll best absorb/least reflect?
red + blue
what color does chlorophyll least absorb/most reflect? why are plants green?
green - plants reflect green light giving them a green color
what undergoes photosynthesis?
autotrophs - be careful not to say plants, that doesn’t include bacteria that photosynthesize, etc.
main purpose of photosynthesis?
to make food for the plant
step 1
plants take in CO2 through the stomata + absorb water through the roots
