Notes from NEET topper

Stomatal Closure: Pollutants like sulfur dioxide and nitrogen dioxide can lead to the closure of stomata—tiny openings in leaves responsible for gas exchange. Stomatal closure limits the intake of carbon dioxide (CO2), which is a vital component for photosynthesis. Alteration of Chlorophyll Content: Some pollutants can disrupt chlorophyll synthesis and degrade existing chlorophyll molecules, thus affecting the rate of photosynthesis. Disruption of the electron transport chain: The smoke and the dust particles have heavy metals that can inhibit the electron transport chain. Internal factors affecting photosynthesis