Which of the following statements about the role of chlorophyll in photosynthesis is false?
Most of the chlorophyll in a plant participates in an oxidation/reduction reaction
In green plant photosynthesis, water is
oxidized to oxygen gas (O2) in the light
The products of noncyclic electron transport are
NADPH, O2, and ATP
In addition to driving the synthesis of ATP and the reduction of NADP+ to NADPH, light stimulates the Calvin cycle by _______ and _______.
increasing the pH of the stroma; reduction of some enzymes
The ultimate source of energy for ATP synthesis in chloroplasts is
Cyclic electron transport
is coupled to proton uptake into the thylakoid lumen
If you were to grow a green plant in a lighted chamber in the presence of radioactive carbon dioxide for several days, which of the following types of compounds in the plant would be radioactive?
A.Only sugarsB.Amino acids and proteins C.Oils and membrane lipids D.Calvin cycle intermediates E.All of the above
Reaction center chlorophylls
are oxidized when in the excited state
The major product of photosynthesis that is exported from the leaves to the rest of the plant is
The _______ of photosynthesis is similar to the _______ of chlorophylls
action spectrum; absorption spectrum
What is photosynthesis?
Where plants, and other organisms take in co2 water and light energy producing 02 and carbohydrates
Metabolic processes, carried out by green plants, by which visible light is trapped and the energy used to synthesize compounds such as ATP and glucose.
What does the light reaction of photosynthesis do?
It convert light energy into chemical energy, they produce ATP and reduce NADPH
Light reaction defined
The initial phase of photosynthesis, in which light energy is converted into chemical energy.
What does the light-independent reaction of photosynthesis do?
It do not use light directly, instead it use ATP and NADPH to reduce CO2 to form cabohydrates
Prokaryotes vs Eukaryotes
bacteria - prokaryotes
animals - eukaryotes
plants - eukaryotes
DNA - both