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Chapter 7 (Charcteristics (Autotroph (organisms that make their own food…
Chapter 7
Charcteristics
Autotroph
organisms that make their own food via photosynthesis
chlorophyll
light absorbing pigment in chloroplasts
mesophyll
layer in the middle of a leaf
stomata
think pores that allow gas in leaf
Equation
6 CO2 + 6 H2O + Light --> Glucose + 6 CO2
Photosynthesis
light energy is captured by chlorophyll molecules to bps energy of electrons
Light Reaction
Goal
to convert light energy into chemical energy in the bonds of NADPH and ATP
Where
Thylakoid Membrane
Inputs
Light/water/NADP+/ADP
Outputs
O2/NADPH/ATP
Clavin Cycle
Goal
use energy from ATP and NADPH to turn CO2 into sugars
Where
Stroma
Inputs
ATP/NADPH/CO2
Outputs
ADP/NADP+/G3P
Sunlight
contains electromagnetic energy
electro magnetic spectrum
full range of electromagnetic waves
Wavelength
distance between the crests of two adjacent waves
photon
fixed quantity of light
pigments
molecules that absorb light and make things colorful
Specific Types
C3 Plants
use CO2 the normal way during the Calvin cycle producing 3 carbon compound called 3-pga
when it is hot they close stomata to keep from drying out and they do photorespiration
C4 Plants
plants that fix CO2 to 4 carbon compounds and partly close their stomata
CAM Plants
conserve water by only opening stomata at night