BIO 121 Exam 1 Lecture 5 Purdue actual questions with 100% verified correct answers pass guaranteed.

CO2 (low energy) + H2O ---light--- CH2O (high energy) + O2 - correct answers What is the formula for photosynthesis? CO2 was split to give O2 - correct answers Which historical perspective was not right? that water actually splits to get energy (O2) sulfur bacteria - correct answers What did Van Neil discover and what did he use? 6CO2 + 12H2O + light-- chlorophyll-- C6H12O6 + 6O2 + 6H2O - correct answers What's the splitting of H2O formula (opposite of respiration)? light reaction dark reaction - correct answers What are the two stages of photosynthesis? CO2 is reduced to sugars - correct answers What happens in photosynthesis? 2H2O + light --chlorophyll-- O2 ^ + [4CH+] +4e- - correct answers What's the formula for the light reaction of photosynthesis? CO2 + 4[H+] + 4e- ---- CH2O + H2O (sugar) - correct answers What's the formula for the dark reaction of photosynthesis? energy - correct answers Longer wavelength the smaller the __________. absorption spectrum - correct answers Pigments are found in what? chlorophyll A - correct answers What's the reaction center? pigment absorbs a photon of light electrons elevated to high energy level enzyme catalyzed so light energy is to chemical energy - correct answers What's exciting an electron steps? Noncyclic photophosylation - correct answers What's the technical term for light reaction of photosynthesis? PSI PSII - correct answers What are the two photosystems in photosynthesis? - P680 captures a photon - electrons go to primary acceptor, which is pheophytin - split H2O leave O2 - Cruise down photosystem two and generate more energy - electrons fill electron hole after illumination in P700 to Ferredoxin - cruise down photosystem 1 - reduce NADP oxidized to NADP reduced - correct answers Explain light reaction it was discovered backwards - correct answers Why does it go photosystem 2 to 1? O2, NADP reduced, and ATP - correct answers What are the end products of the light reaction? - Fixation of carbon 6CO2 + RUBP gets you phosphoglycerate and lose rubisco plant captures carbon - Reduction 12ATP + 12NADP reduced PGA into 2 PGAL - Regeneration of RUBP 6 RUMP + 6ATP --- 6 RUBP - correct answers Explain dark reaction 18 ATP 12 NADP reduced for one glucose - correct answers What's the total after the dark reaction? C4 plants do an extra step - CO2 is grabbed by PEP make 4 carbon and release CO2 to Calvin cycle - correct answers What's the difference of c3 and c4 plants? CO2 goes down and O2 goes up - correct answers What happens in C4 plants when stomates are nearly closed? RUBP + O2 --- photorespiration - correct answers What is photorespiration formula? PEP + CO2 - correct answers What makes up a C4 compound? corn sugarcane - correct answers What is an example of C4 plants? cam plant - correct answers Separation of processes in time? stomates open at night and make C4 compound and close in the day to conserve H2O - correct answers Explain CAM plants cacti pineapples - correct answers What is an example of CAM plants?