Multiple Choice
Which process is primarily responsible for producing the oxygen present in Earth's atmosphere?
108
views
9. Photosynthesis
Introduction to Photosynthesis
Multiple Choice
Carbon dioxide (\(\mathrm{CO_2}\)) is used by plants during which process?
A
Fermentation
B
Photosynthesis
C
Respiration
D
Transpiration
Verified step by step guidance1
Understand the role of carbon dioxide (\(\mathrm{CO_2}\)) in biological processes. Carbon dioxide is a key molecule involved in the process of photosynthesis, where plants convert light energy into chemical energy.
Recall the definition of photosynthesis: Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide (\(\mathrm{CO_2}\)) to produce glucose and oxygen. The chemical equation for photosynthesis is: \(6\mathrm{CO_2} + 6\mathrm{H_2O} \xrightarrow{light} \mathrm{C_6H_{12}O_6} + 6\mathrm{O_2}\).
Differentiate photosynthesis from other processes listed in the question: Fermentation is an anaerobic process that does not involve carbon dioxide as a reactant. Respiration involves the breakdown of glucose to produce energy, releasing carbon dioxide as a byproduct. Transpiration is the process of water movement through plants and its evaporation from aerial parts, which does not involve carbon dioxide.
Identify that carbon dioxide (\(\mathrm{CO_2}\)) is specifically used as a reactant in photosynthesis, making it the correct answer to the question.
Conclude that the correct answer is 'Photosynthesis' because it is the only process among the options where carbon dioxide (\(\mathrm{CO_2}\)) is actively utilized by plants.
Related Videos
Related Practice
