Concept explainers
To suggest: A hypothesis that would explainthe given observation.
Introduction: The plant is a multicellular organism in the kingdom Plantae. It uses photosynthesis to make its own food. Photosynthesis is a process by which green plants and certain other organisms transform light energy into chemical energy. The process of photosynthesis takes place in two sequential stages, which include light-dependent reactions and light-independent reactions.
Explanation of Solution
Blackman measured photosynthesis rates under differing intensities of light, carbon dioxide, and temperatures. Blackman found that increasing light intensity above 2000 foot-candles does not lead to any further increase in the rate of photosynthesis.
The light energy is used to generate adenosine triphosphate (ATP) and nicotinamide adenine dinucleotide phosphate hydrogen (NADPH) that can then be used to reduce carbon dioxide. The chlorophyll molecules absorb the photons of light energy. Thus, increasing light intensity increase photosynthesis, but it will saturate when all chlorophyll molecules are in use.
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