{"id":86296,"date":"2025-06-01T03:42:52","date_gmt":"2025-06-01T03:42:52","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=86296"},"modified":"2025-06-01T03:42:52","modified_gmt":"2025-06-01T03:42:52","slug":"which-one-of-the-following-statements-about-the-process-of-photosynthe","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-statements-about-the-process-of-photosynthe\/","title":{"rendered":"Which one of the following statements about the process of photosynthe"},"content":{"rendered":"

Which one of the following statements about the process of photosynthesis is correct ?<\/p>\n

[amp_mcq option1=”Light energy is directly converted to kinetic energy which oxidizes carbon dioxide.” option2=”Light energy is directly converted to chemical energy which causes reduction of water.” option3=”Chlorophyll absorbs the chemical energy of light which causes oxidation of carbon dioxide.” option4=”Chlorophyll absorbs light energy which causes splitting of water molecules and reduction of carbon dioxide.” correct=”option4″]<\/p>\n

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This question was previously asked in<\/div>\n
UPSC CDS-2 – 2022<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nPhotosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll pigment. This process involves converting light energy into chemical energy.
\n<\/section>\n
\n– Chlorophyll absorbs light energy from sunlight.
\n– This light energy is used to split water molecules (photolysis of water) into oxygen, protons, and electrons. This is the oxidation of water.
\n– The energy captured and the electrons\/protons generated are then used to reduce carbon dioxide into glucose (a sugar). This is the reduction of carbon dioxide.
\nThus, chlorophyll absorbs light energy which causes splitting of water molecules and reduction of carbon dioxide.
\n<\/section>\n
\nThe overall equation for photosynthesis is 6CO\u2082 + 6H\u2082O + Light Energy \u2192 C\u2086H\u2081\u2082O\u2086 + 6O\u2082. The process occurs in two main stages: the light-dependent reactions (where light energy is captured and water is split) and the light-independent reactions (Calvin cycle, where CO\u2082 is reduced to sugar).
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which one of the following statements about the process of photosynthesis is correct ? [amp_mcq option1=”Light energy is directly converted to kinetic energy which oxidizes carbon dioxide.” option2=”Light energy is directly converted to chemical energy which causes reduction of water.” option3=”Chlorophyll absorbs the chemical energy of light which causes oxidation of carbon dioxide.” option4=”Chlorophyll absorbs … <\/p>\n

Detailed SolutionWhich one of the following statements about the process of photosynthe<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1088],"tags":[1108,1117,1331],"class_list":["post-86296","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-2","tag-1108","tag-biology","tag-photosynthesis","no-featured-image-padding"],"yoast_head":"\nWhich one of the following statements about the process of photosynthe<\/title>\n<meta name=\"description\" content=\"Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll pigment. This process involves converting light energy into chemical energy. - Chlorophyll absorbs light energy from sunlight. - This light energy is used to split water molecules (photolysis of water) into oxygen, protons, and electrons. This is the oxidation of water. - The energy captured and the electrons\/protons generated are then used to reduce carbon dioxide into glucose (a sugar). This is the reduction of carbon dioxide. Thus, chlorophyll absorbs light energy which causes splitting of water molecules and reduction of carbon dioxide.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-statements-about-the-process-of-photosynthe\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which one of the following statements about the process of photosynthe\" \/>\n<meta property=\"og:description\" content=\"Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll pigment. This process involves converting light energy into chemical energy. - Chlorophyll absorbs light energy from sunlight. - This light energy is used to split water molecules (photolysis of water) into oxygen, protons, and electrons. This is the oxidation of water. - The energy captured and the electrons\/protons generated are then used to reduce carbon dioxide into glucose (a sugar). This is the reduction of carbon dioxide. 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