{"id":85811,"date":"2025-06-01T03:28:38","date_gmt":"2025-06-01T03:28:38","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=85811"},"modified":"2025-06-01T03:28:38","modified_gmt":"2025-06-01T03:28:38","slug":"which-of-the-following-is-not-a-primary-function-of-a-green-leaf","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-is-not-a-primary-function-of-a-green-leaf\/","title":{"rendered":"Which of the following is not a primary function of a green leaf?"},"content":{"rendered":"

Which of the following is not a primary function of a green leaf?<\/p>\n

[amp_mcq option1=”Manufacture of food” option2=”Interchange of gases” option3=”Evaporation of water” option4=”Conduction of food and water” correct=”option4″]<\/p>\n

\n
\n
This question was previously asked in<\/div>\n
UPSC CDS-2 – 2018<\/div>\n<\/div>\n
Download PDF<\/a>Attempt Online<\/a><\/div>\n<\/div>\n
\nThe primary functions of a green leaf are:
\nA) Manufacture of food (Photosynthesis): Green leaves contain chlorophyll and are the main sites for converting light energy, CO\u2082, and water into glucose (food). This is a primary function.
\nB) Interchange of gases: Leaves have stomata, pores that regulate the exchange of gases (CO\u2082 intake and O\u2082 release) with the atmosphere. This is a primary function essential for photosynthesis and respiration.
\nC) Evaporation of water (Transpiration): Water is lost from the plant mainly through stomata on the leaves in the form of water vapor. This process helps in the ascent of sap and cooling. This is considered a primary function related to water balance and transport.
\nD) Conduction of food and water: While vascular tissues (xylem for water, phloem for food\/sugars) are present in the leaf veins and transport substances within the leaf and to\/from the rest of the plant, the *conduction* itself is a transport process performed by these tissues, not a primary metabolic or exchange *function* of the leaf tissue as a whole. The primary functions are the synthesis (photosynthesis) and exchange processes.
\nTherefore, conduction of food and water is not considered a primary function of the leaf organ itself, unlike photosynthesis, gas exchange, and transpiration.
\n<\/section>\n
\n– Primary functions of leaves include photosynthesis, gas exchange (CO2, O2), and transpiration.
\n– Conduction is a transport process occurring within the vascular tissues (xylem and phloem) found within the leaf veins.
\n– The question asks for a primary *function* of the leaf, distinguishing between synthesis\/exchange processes and transport.
\n<\/section>\n
\nThe vascular bundles (veins) provide structural support and facilitate the transport of water to the photosynthetic cells and the transport of sugars away from the leaf. While essential for the leaf’s operation, this transport is a supportive function rather than a primary function like energy conversion or gas exchange.
\n<\/section>\n","protected":false},"excerpt":{"rendered":"

Which of the following is not a primary function of a green leaf? [amp_mcq option1=”Manufacture of food” option2=”Interchange of gases” option3=”Evaporation of water” option4=”Conduction of food and water” correct=”option4″] This question was previously asked in UPSC CDS-2 – 2018 Download PDFAttempt Online The primary functions of a green leaf are: A) Manufacture of food (Photosynthesis): … <\/p>\n

Detailed SolutionWhich of the following is not a primary function of a green leaf?<\/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":[1114,1117,1118],"class_list":["post-85811","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-2","tag-1114","tag-biology","tag-plant-physiology","no-featured-image-padding"],"yoast_head":"\nWhich of the following is not a primary function of a green leaf?<\/title>\n<meta name=\"description\" content=\"The primary functions of a green leaf are: A) Manufacture of food (Photosynthesis): Green leaves contain chlorophyll and are the main sites for converting light energy, CO\u2082, and water into glucose (food). This is a primary function. B) Interchange of gases: Leaves have stomata, pores that regulate the exchange of gases (CO\u2082 intake and O\u2082 release) with the atmosphere. This is a primary function essential for photosynthesis and respiration. C) Evaporation of water (Transpiration): Water is lost from the plant mainly through stomata on the leaves in the form of water vapor. This process helps in the ascent of sap and cooling. This is considered a primary function related to water balance and transport. D) Conduction of food and water: While vascular tissues (xylem for water, phloem for food\/sugars) are present in the leaf veins and transport substances within the leaf and to\/from the rest of the plant, the *conduction* itself is a transport process performed by these tissues, not a primary metabolic or exchange *function* of the leaf tissue as a whole. The primary functions are the synthesis (photosynthesis) and exchange processes. Therefore, conduction of food and water is not considered a primary function of the leaf organ itself, unlike photosynthesis, gas exchange, and transpiration. - Primary functions of leaves include photosynthesis, gas exchange (CO2, O2), and transpiration. - Conduction is a transport process occurring within the vascular tissues (xylem and phloem) found within the leaf veins. - The question asks for a primary *function* of the leaf, distinguishing between synthesis\/exchange processes and transport.\" \/>\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-of-the-following-is-not-a-primary-function-of-a-green-leaf\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which of the following is not a primary function of a green leaf?\" \/>\n<meta property=\"og:description\" content=\"The primary functions of a green leaf are: A) Manufacture of food (Photosynthesis): Green leaves contain chlorophyll and are the main sites for converting light energy, CO\u2082, and water into glucose (food). This is a primary function. B) Interchange of gases: Leaves have stomata, pores that regulate the exchange of gases (CO\u2082 intake and O\u2082 release) with the atmosphere. This is a primary function essential for photosynthesis and respiration. C) Evaporation of water (Transpiration): Water is lost from the plant mainly through stomata on the leaves in the form of water vapor. This process helps in the ascent of sap and cooling. This is considered a primary function related to water balance and transport. D) Conduction of food and water: While vascular tissues (xylem for water, phloem for food\/sugars) are present in the leaf veins and transport substances within the leaf and to\/from the rest of the plant, the *conduction* itself is a transport process performed by these tissues, not a primary metabolic or exchange *function* of the leaf tissue as a whole. The primary functions are the synthesis (photosynthesis) and exchange processes. Therefore, conduction of food and water is not considered a primary function of the leaf organ itself, unlike photosynthesis, gas exchange, and transpiration. - Primary functions of leaves include photosynthesis, gas exchange (CO2, O2), and transpiration. - Conduction is a transport process occurring within the vascular tissues (xylem and phloem) found within the leaf veins. - The question asks for a primary *function* of the leaf, distinguishing between synthesis\/exchange processes and transport.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-is-not-a-primary-function-of-a-green-leaf\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T03:28:38+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Which of the following is not a primary function of a green leaf?","description":"The primary functions of a green leaf are: A) Manufacture of food (Photosynthesis): Green leaves contain chlorophyll and are the main sites for converting light energy, CO\u2082, and water into glucose (food). 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Therefore, conduction of food and water is not considered a primary function of the leaf organ itself, unlike photosynthesis, gas exchange, and transpiration. - Primary functions of leaves include photosynthesis, gas exchange (CO2, O2), and transpiration. - Conduction is a transport process occurring within the vascular tissues (xylem and phloem) found within the leaf veins. - The question asks for a primary *function* of the leaf, distinguishing between synthesis\/exchange processes and transport.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-is-not-a-primary-function-of-a-green-leaf\/","og_locale":"en_US","og_type":"article","og_title":"Which of the following is not a primary function of a green leaf?","og_description":"The primary functions of a green leaf are: A) Manufacture of food (Photosynthesis): Green leaves contain chlorophyll and are the main sites for converting light energy, CO\u2082, and water into glucose (food). 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