chap 5- biochemical pathways Flashcards
what are the requirements of photosynthesis
light energy
chlorophyll
carbon dioxide
water
why are plants green
chlorophylls absorb blue and red wavelengths and reflect green wavelengths
worded equation for photosynthesis
carbon dioxide + water –> glucose + oxygen
chemical equation for photosynthesis
6CO2 + 12H2O –> C6H12O6 + 6H2O + 6O2
how is glucose used by plants
used an immediate source of energy OR stored by the plant as starch OR used as a chemical starting point for the synthesis of complex compounds, such as proteins
how is the product of photosynthesis, oxygen, used
may be used in cellular respiration or be released into the atmosphere as a waste product
where does the light dependent stage of photosynthesis occur
thylakoid membrane in the grana
inputs of light dependent stage of photosynthesis
sunlight, 12H2O, 18Pi, 18ADP, 12NADP+
outputs of light dependent stage of photosynthesis
6O2, 18ATP, 12NADPH
what happens during the light dependent stage of photosynthesis
light energy is absorbed, makes chlorophyll excited and it loses an electron. water is split
where does calvin cycle occur
stroma
inputs of calvin cycle
6CO2, 18ATP, 12NADPH
outputs of calvin cycle
Glucose, 18ADP, 18Pi, 12NADP+
what happens during the calvin cycle
carbon fixation (catalysed by RuBisCO). where glucose is built from carbon dioxide.
purpose of cellular respiration
to transfer chemical energy of glucose into the energy of ATP which can be used by cells.