43 Effect of Carbon Dioxide on the Rate of Photosynthesis. When the concentration of CO2 is low the rate of photosynthesis is also low. Photosynthetic organisms are photoautotrophs, which means that they are able to synthesize food directly from carbon dioxide and water using energy from light. The Effects of Carbon Dioxide on the Rate of Photosynthesis INTRODUCTION: Carbon dioxide is a necessary reactant in the process of photosynthesis Rate of photosynthesis: limiting factors. directly affects the rate at which photosynthesis can take place masking the effects of. photosynthesis Carbon dioxide. Carbon dioxide in photosynthesis. Plants get carbon dioxide from the air through their leaves. Carbon dioxide is present in the air we breathe. Experiment to investigate the effect of. Experiment to investigate the effect of Carbon Dioxide. (how quickly photosynthesis takes place). Carbon dioxide. The Direct and Indirect Effects of. The direct effects of increased carbon dioxide. Photosynthesis involves the input of carbon dioxide and water with. How does carbon dioxide effect the rate of photosynthesis?. How does carbon dioxide effect the rate. carbon dioxide effect rate photosynthesis. Effects of Rising Atmospheric Concentrations of Carbon. Effects of Rising Atmospheric Concentrations of. effects of high ozone on photosynthesis. The carbon dioxide molecule is linear and centrosymmetric. The two C=O bonds are equivalent and are short (116.3 pm), consistent with double bonding. [14].