ECU Biology 1100 Exam 2 Study Questions and Solutions
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Course
ECU BIO 1100
Institution
ECU BIO 1100
Photo system consists of a reaction center in the complex (a type of protein complex) surrounded by light-harvesting complexes
Photo system II (PS II) Functions first; best at absorbing a wavelength of 680nm
Photo system I (PS I) Best at absorbing wavelength of 700nm
Linear Electron flow Flow of...
ECU Biology 1100 Exam 2 Study
Questions and Solutions
Photo system ✅consists of a reaction center in the complex (a type of protein
complex) surrounded by light-harvesting complexes
Photo system II (PS II) ✅Functions first; best at absorbing a wavelength of 680nm
Photo system I (PS I) ✅Best at absorbing wavelength of 700nm
Linear Electron flow ✅Flow of electrons through photosynthesis
Carbon Fixation (Calvin Cycle) ✅Incorporation of CO2 molecules in rubulous bi-
phosphate (RuBp); using enzyme "rubisco"; product is 3-phosphateglycerate (phase 1)
Reduction (Calvin Cycle) ✅Involves reduction and phosphorylation of 3-
phosphogyclerate to sugar (GP3); 6ATP and 6 ADPH are needed to make 6 G3P
(phase 2)
Regeneration (Calvin Cycle) ✅Involves rearrangement of 5 remaining G3P to make
RuBP; 3 more ATP needed (Phase 3)
Photosynthesis ✅the process that converts solar energy into chemical energy
Chlorophyll ✅Green pigment in plants that absorbs light energy used to carry out
photosynthesis
Mesophil ✅Interior tissue of the leaf
Stoma ✅CO2 enters; O2 exists through these parts
Thylakoids ✅Connected sacs of membrane in the chloroplast
Stroma ✅Dense interior fluid
Light reaction ✅Part of photosynthesis that involves light. ATP and NADPH are
produced. Takes place on the thylakoid membrane.
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