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Photosynthesis and Plants

Terms in this set (54)

Photosynthesis
converts light energy to chemical energy; carbon dioxide (CO2) requiring process; uses light energy (photons) and water (H2O); producing organic macromolecules (glucose)
Photosynthesis formula
6CO + 6H2O + SUN = C6H12O6 + 6O2
Reactants in photosynthesis
carbon dioxide, water, and sunlight energy
Products in photosynthesis
glucose and oxygen
What organism/s do photosynthesis?
plants, some protista, and bacteria
autotrophs
self-producers
Location of photosynthesis
leaves (organ)
Stoma (singular=stomata)
pores in the plant's cuticle through which water and gases are exchanged between the plant and the atmosphere
Mesophyll cells (middle leaf)
cells in the mesophyll tissue of a leaf that contain chloroplasts which conduct photosynthesis
Chloroplasts
organelle where photosynthesis takes place
Thylakoid
disc-like sac inside chloroplasts
Stroma
gel-like liquid surrounding the granum
Granum (plural=grana)
stack of thylakoids
Stroma (identification)
?
Granum (identification)
?
Thylakoid (identification)
???
Inner membrane (identification)
?
Outer membrane (identification)
?
Why are plants green?
chlorophyll molecules
Chlorophyll molecules
-located in the thylakoid membranes of chloroplasts -chlorophyll have Mg+ in the center
-chlorophyll pigments harvest energy (photons) by absorbing certain wavelengths (blue-420 nm and red-660 nm are most important)
-plants are green because the green wavelength is REFLECTED, not absorbed
short wavelength=
higher energy
long wavelength=
lower energy
absorption of chlorophyll
brown & red
anthocynin
purple
xanthocynin
yellow
xanthophyll
orange
beta-carotene
carotenes
pigments that are either red or yellow
green chlorophyll pigments during fall
greatly reduced and reveal other pigments
leaves change color- along with chlorophyll pigment, what else
accessory pigments
Light dependent reaction (names)
light reaction & electron transport chain
Light dependent reaction (location)
thylakoids
Light dependent reaction (reactants)
H2O, NADP+, ADP, photons of light
Light dependent reaction (products)
ATP, NADPH, O2
Light independent reaction (names)
Calvin cycle, dark reaction, glucose making, carbon fixation
Light independent reaction (location)
stroma
Light independent reaction (reactants)
CO2, ATP, NADPH
Light independent reaction (products)
Glucose (C6H12O6), NADP+, ADP
Light dependent reaction
Uses light energy and water for making energy storing compounds
Light independent reaction
uses energy from light reaction to make sugar
Calvin cycle location
stroma
calvin cycle uses _____ from light reaction
ATP and NADPH
Calvin cycle turns ____ into glucose
CO2
Calvin cycle- to produce glucose
takes 2 turns, and uses 18 ATP and 12 NADPH
broken down ADP and NADP+ return to ??
Light reaction to be regenerated
Factors that effect rate of photosynthesis
-light intensity
-carbon dioxide
-temperature
-oxygen
Light intensity
Oxygen Concentration
Temperature
Carbon Dioxide
CO2
?
Glucose (C6H12O6)
?
ATP & NADPH
??
NADP+ & ADP + P
??
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