Photosynthesis
Biology ⇒ Plant Biology
Photosynthesis starts at 6 and continues till grade 12.
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A plant is placed in a sealed container with only water and light. After several hours, the oxygen concentration in the container increases. What process is responsible for this change?
A scientist measures the rate of photosynthesis in a plant under different light intensities. She observes that the rate increases with light intensity up to a point, then levels off. Explain why this occurs.
Calculate the number of molecules of ATP required to produce one molecule of glucose in the Calvin cycle.
Calculate the number of NADPH molecules required to produce one molecule of glucose in the Calvin cycle.
Describe the function of accessory pigments in photosynthesis.
Describe the role of ATP synthase in photosynthesis.
Describe the role of water in the light-dependent reactions of photosynthesis.
Explain the difference between the light-dependent and light-independent reactions of photosynthesis.
Explain the role of the electron transport chain in the light-dependent reactions.
Explain the significance of the Z-scheme in the light-dependent reactions of photosynthesis.
Explain why CAM plants are adapted to arid environments.
Photosynthesis occurs in which organelle of plant cells?
Which molecule is the final electron acceptor in the light-dependent reactions of photosynthesis?
A plant is exposed to an atmosphere containing only 18O-labeled water (H218O) and normal CO2. After photosynthesis, which molecule(s) will contain the 18O isotope?
A researcher measures the rate of photosynthesis in a leaf at different CO2 concentrations while keeping light intensity and temperature constant. She observes that the rate increases with CO2 concentration up to a certain point, then plateaus. Explain the most likely reason for this plateau.
Describe how the absorption spectrum of chlorophyll differs from its action spectrum, and explain the significance of this difference in photosynthesis.
Explain how the structure of the chloroplast facilitates the process of photosynthesis, focusing on compartmentalization and membrane organization.
Explain why the Calvin cycle is sometimes referred to as the C3 pathway.
