Question 28
Choose the event that does not occur in photosynthesis
(a) Absorption of light energy by chlorophyll
(b) Reduction of carbon dioxide to carbohydrates
(c) Oxidation of carbon to carbon dioxide
(d) Conversion of light energy to chemical energy
Question 28
Choose the event that does not occur in photosynthesis
(a) Absorption of light energy by chlorophyll
(b) Reduction of carbon dioxide to carbohydrates
(c) Oxidation of carbon to carbon dioxide
(d) Conversion of light energy to chemical energy
(c) Oxidation of carbon to carbon dioxide
Photosynthesis is a process used by plants and other organisms to convert light energy, normally from the sun, into chemical energy that can be used as a fuel for various activities of an organism. This chemical energy is stored in carbohydrate molecules such as sugars which are synthesized from carbon dioxide and water. Carbon dioxide is converted into sugars in a process called carbon fixation. Carbon fixation is an endothermic redox reaction, so photosynthesis needs to supply both a source of energy to drive this process and the electrons needed to convert carbon dioxide into a carbohydrate. Although photosynthesis is performed differently by different species, the process always begins when energy from light is absorbed by green chlorophyll pigments. In plants, this chlorophyll is held inside organelles called chloroplasts, which are most abundant in leaf cells.
(c) Oxidation of carbon to carbon dioxide
Photosynthesis is a process used by plants and other organisms to convert light energy, normally from the sun, into chemical energy that can be used as a fuel for various activities of an organism. This chemical energy is stored in carbohydrate molecules such as sugars which are synthesized from carbon dioxide and water. Carbon dioxide is converted into sugars in a process called carbon fixation. Carbon fixation is an endothermic redox reaction, so photosynthesis needs to supply both a source of energy to drive this process and the electrons needed to convert carbon dioxide into a carbohydrate. Although photosynthesis is performed differently by different species, the process always begins when energy from light is absorbed by green chlorophyll pigments. In plants, this chlorophyll is held inside organelles called chloroplasts, which are most abundant in leaf cells.
