LIGHT DEPENDENT
WHERE DOES THE LIGHT DEPENDENT REACTION OCCUR?
WHERE DOES THE LIGHT INDEPENDENT REACTION OCCUR?
- THYLAKOID MEMBRANE (BETWEEN STROMA AND LUMEN)
- STROMA
THE REACTANTS OF THE LIGHT DEPENDENT REACTION ARE
NADP+ & H+
ADP + Pi
LIGHT
H2O
WHAT ARE THE PRODUCT(S) OF THE LIGHT INDEPENDENT REACTION?
1 G3P
WHICH IS FORMED FIRST: G3P (GLYCERALDEHYDE 3-PHOSPHATE) OR 3-PGA (3-PHOSPHOGLYCERATE)
3-PGA
THIS TYPE OF ORGANISM MAKES THEIR OWN FOOD USING LIGHT
AUTOTROPH (PHOTOAUTOTROPH)
SOLAR ENERGY IS ABSORBED USING WHAT?
PIGMENTS
WHAT WAVELENGTHS DOES CHLOROPHYLL A ABSORB?
BLUE & RED
THE CALVIN CYCLE CAN BE BROKEN DOWN INTO THREE STAGES, WHAT ARE THESE & PUT THEM IN CORRECT ORDER.
1. CARBON FIXATION
2. REDUCTION
3. REGENERATION
WHAT IS CARBON FIXATION "FIXING" & HOW DOES THIS PROCESS DO THIS?
- "FIXING" ATMOSPHERIC CARBON (CARBON DIOXIDE) TO RUBP
- USES AN ENZYME KNOWN AS RUBISCO
THE CHLOROPHYLL MOLECULE IN PHOTOSYSTEM II
P680
THE THREE CATEGORIES OF PIGMENTS IN PLANTS ARE
CHLOROPHYLL A
CHLOROPHYLL B
ACCESSORY PIGMENTS
IN BOTH PHOTOSYSTEMS ELECTRONS ARE FIRST PASSED FROM P680 AND P700 TO A:
PRIMARY ELECTRON ACCEPTOR
THE REDUCTION STAGE OF CALVIN CYCLE USES WHAT TWO MOLECULES TO CHANGE 3-PGA INTO G3P
- NADPH
- ATP
HOW MANY CO2 MOLECULES MUST ENTER THE CALVIN CYCLE TO PRODUCE 1 G3P MOLECULE?
3 CO2
H+ IONS DIFFUSING DOWN ATP SYNTHASE IS AN EXAMPLE OF ACTIVE OR PASSIVE TRANSPORT?
(+100 - WHAT SPECIFIC TYPE OF TRANSPORT IS THIS)
PASSIVE TRANSPORT.
- FACILITATED DIFFUSION
ELECTRONS FROM PSI ARE USED TO REDUCE WHAT INTO WHAT?
NADP+ INTO NADPH
PUT THIS IN CORRECT ORDER:
1. ELECTRON IS PASSED TO A PRIMARY ELECTRON ACCEPTOR
2. ELECTRONS ARE USED TO REDUCE NADPH
3. ELECTRON IN PS1 IS ENERGIZED BY A PHOTON
4. AN ELECTRON FROM PS2 IS USED TO REPLACE ONE LOST IN PSI
3. --> 1. --> 2. --> 4.
DESCRIBE THE REGENERATION STEP OF THE CALVIN CYCLE
5 G3P ARE REARRAGNED USING ATP TO FORM 3 RUBP
BETWEEN PHOTOSYNTHESIS AND CELLULAR RESPIRATION, WHICH PROCESS IS CATABOLIC AND WHICH IS ANABOLIC?
PHOTOSYNTHESIS - ANABOLIC
CELLULAR RESPIRATION - CATABOLIC
WATER
DESCRIBE HOW AN ETC IS USED TO PRODUCE ATP. (INCLUDE CONCENTRATION GRADIENT, STROMA, LUMEN)
ELECTRONS ARE PASSED THROUGH AN ETC, WHERE THEY RELEASE ENERGY INTO A CYTOCHROME MOLECULE. THIS HELPS PUMP H+ FROM THE STROMA INTO THE LUMEN. HIGH CONCENTRATION OF H+ IN THE LUMEN. H+ THEN DIFFUSES DOWN ATP SYNTHASE
WHAT WOULD OCCUR IF THE MEMBRANE WAS LEAKY TO H+ IONS?
THE CONCENTRATION GRADIENT WOULD NOT BE ESTABLISHED AND ATP COULD NOT BE FORMED.
PREDICT WHAT WOULD OCCUR IF NADPH IS UNABLE TO REDUCE 3-PGA
- NO G3P WILL BE FORMED
- THE LIGHT DEPENDENT REACTION WILL BREAK DOWN AS THERE IS NO NADP+
DESCRIBE HOW RUBP IS ALTERED AND ULTIMATELY REGENERATED THROUGH THE CALVIN CYCLE
RUBP --> 3-PGA --> G3P --> RUBP
SOME OF THE G3P PRODUCE DURING THE CALVIN CYCLE ARE USED TO PRODUCE GLUCOSE. THIS IS THEN USED TO DO WHAT?
UNDERGO CELLULAR RESPIRATION TO PRODUCE ATP