Unit 2 Study Flashcards
Particles of light behave as ‘bundles’ of energy called
Photons
When light passes from one medium (air) into
another (glass or water), it bends or refracts
Refractiion
is a machine that sends light
through pigments and measures the fraction of light
transmitted at each wavelength
spectrophotometer
What is exchanged across the stomata
(directionally)
O2 and CO2
Photosystems capture light and are embeded in the
Thylakoid membrane
Two parts of a photosytem
A reaction center and a light harvesting complex
best at absorbing a
wavelength of 680 nm
Photosystem II (PS II
best at absorbing a
wavelength of 700 nm and is called P700
Photosystem I (PS I)
Fix CO2 using differrnt ezyme with less afinity for oxygenn
C4
Fix C04 when water loss is not a problem at nigtt when stomata is open
CAM
2 identical Dna molucles formed by replication remain attached to eachother
Sister chrtommososmrs