Where and what
What byproduct is formed in the lumen of the chloroplasts when water is split?
Oxygen
Which cycle takes in CO2 and makes organic compounds such as glucose
Calvin
Which type of plant will undergo photorespiration when CO2 levels are low/ it is very hot.
C3 plants
Which pigment is found at the reaction center of the thylakoid membrane
Chlorophyll a
Name 2 reactants of the light reaction
Water, ADP, NADP+
Which part of the chloroplast does the majority of the light - dependent reaction occur?
Thylakoids
Which ions are pumped from the stroma into the lumen of a chloroplast during the light reaction
Hydrogen ions
Which enzyme found in the Calvin Cycle "fixes" CO2 from the atmosphere?
Rubisco
Name the main 2 photosynthetic pigments.
Chlorophyll a, Chlorophyll b
Name two products of the light reaction
Oxygen, ATP, NADPH
Where in the chloroplast does the dark (light - independent) reaction occur?
Stroma
T or F: the dark (light independent) cycle only occurs in the dark
False
Why is photorespiration detrimental to plants? What can they not make?
Plants fix oxygen instead of carbon dioxide, therefore don't have the carbon needed to produce sugar.
What is chemiosmotic phosphorylation?
When H+ ions leak through a protein channel and ATP is produced during the light reaction.
Name two reactants of the dark (light - independent) reaction
Carbon dioxide, ATP, NADPH
Which molecule accepts electrons from the electron transport chain during the light - dependent reaction?
NADP+
How many times does the Calvin cycle have to turn in order to generate 1 glucose (assuming 1 CO2 enters at a time)?
6 times
What is the special strategy of CAM plants?
They only open stomata and take in CO2 at night, reducing water loss during the heat of the daytime.
How is ADP converted to ATP during the light reaction?
As hydrogen ions flow through a protein channel, ATP synthase, a phosphate is added to ADP
Name two products of the dark (light - independent) reaction
Glucose, ADP, NADP+
What is the purpose of chlorophyll in plants?
Trap light energy
Name one source of H+ ions that build up in the lumen of the chloroplast.
- pumped by proteins embedded in the thylakoid membrane.
- Splitting of water
What is a C4 plant capable of that a C3 is not?
Fix CO2 even when conditions are not optimal.
What are the yellow and orange pigments in the thylakoid membrane called?
Carotenoids
Which 2 molecules fuel the light - independent reaction
ATP and NADPH