question archive Which is required for the light-independent reactions in photosynthesis to occur? water sunlight oxygen carbon dioxide Which process occurs during the light-dependent reactions in photosynthesis? Water molecules are split
Which is required for the light-independent reactions in photosynthesis to occur? water sunlight oxygen carbon dioxide Which process occurs during the light-dependent reactions in photosynthesis? Water molecules are split
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Which is required for the light-independent reactions in photosynthesis to occur?
water
sunlight
oxygen
carbon dioxide
Which process occurs during the light-dependent reactions in photosynthesis?
Water molecules are split.
Carbon fixation occurs.
3-PGA is reduced.
RuBP is regenerated.
Which is the best hypothesis for the scientific question “How does light intensity affect the rate of photosynthesis?”
Light intensity, CO2 concentration, and temperature are factors that determine the rate of photosynthesis.
Light intensity has no effect on the rate of photosynthesis.
If the distance between the source of light and the plant is increased, the rate of photosynthesis will decrease.
Light intensity has an impact on the rate of photosynthesis.
Fiona wants to use the scientific method to answer the question “Do oxygen levels in the air affect rates of photosynthesis?” She reads about photosynthesis in her biology book and is ready to carry out the next step. What should she do next?
perform an experiment
design a procedure
make observations
form a hypothesis
Which process is catalyzed by rubisco during the light-independent reactions of photosynthesis?
glycolysis
carbon fixation
reduction
regeneration
Which compound is a metabolic intermediate of the light-independent reactions in photosynthesis?
ATP
3-PGA
RuBP
NADPH
Which statement about the light-independent reactions in photosynthesis is true?
They occur in the thylakoids.
They produce ATP and NADPH.
They release oxygen as waste.
They comprise the Calvin cycle.
Why is the Calvin cycle considered a dark reaction?
It occurs only at night.
It requires an absence of light.
It turns the plant dark green.
It can proceed in the dark.
Which is an important difference between light-dependent (L-D) and light-independent (L-IND) reactions in photosynthesis?
The L-D reactions need CO2 and light energy, and the L-IND reactions needs water and O2.
The L-D reactions require light energy and water, and the L-IND reactions require ATP, NADPH and CO2.
The L-D reactions can only occur during daylight, and the L-IND reactions can only occur during the night.
The L-D reactions need water and CO2, and the L-IND reactions need CO2 and light.
