Parts of Cell, Chromatography and Photosynthesis Quiz Flashcards
What’s the order of plant pigments from smallest to largest rf factor
chlorophyll b, chlorophyll a, xanthophyll, carotenes
what’s the formula to find the rf factor
distance pigment travels/distance solvent travels
Which pigments will move the farthest up the chromatography paper
the ones with the smallest molecular weight and the greatest ability to dissolve in the solvent
whats the general photosynthesis equation
carbon dioxide plus water in the presence of sunlight and chlorophyll produces glucose oxygen and water
whats the first phase of photosynthesis
light dependant reaction
where do light dependant reactions occur
in the membranes of the thylakoid disks
what are the 2 parts of light dependant reactions
photosystem 1 and photosystem 2
what happens in photosystem 1
solar energy is trapped by pigments
what happens in photosystem 2
some of solar energy is used to split water into electrons, hydrogen atoms and oxygen
where does the electrons made in photolysis go and what does it make
go into photosystem 1 which combine with solar energy to produce ATP
what happens to the hydrogen atoms produced in photolysis and what does it make
they are picked up by NADP to produce NADPH
What 2 important chemical products are produced from light-dependent reactions
NADPH and ATP
where does calvin cycle occur
in stroma of chloroplast
what 2 chemicals are needed for light-independent reactions to occur and where do they come from
ATP and NADPH from light dependant reactions
what are the steps in the calvin cycle
ATP and NADPH are obtained, CO2 then combines with RBP which forms a compound called PGA with the assistance of the enzyme rubisco, 2 molecules of PGA are used to form glucose and the others regenerate RBP to repeat the cycle
