{"id":7140,"date":"2026-10-26T13:14:30","date_gmt":"2026-10-26T13:14:30","guid":{"rendered":"https:\/\/ksquareinstitute.in\/blog\/?p=7140"},"modified":"2026-10-26T13:14:31","modified_gmt":"2026-10-26T13:14:31","slug":"photosynthesis-neet-pyq-analysis","status":"publish","type":"post","link":"https:\/\/ksquareinstitute.in\/blog\/photosynthesis-neet-pyq-analysis\/","title":{"rendered":"Photosynthesis NEET PYQ Analysis: Calvin Cycle, C4 Pathway and Light Reactions"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>Quick answer:<\/strong> A photosynthesis NEET PYQ analysis shows that Photosynthesis in Higher Plants gives about two to three questions a year, and NTA keeps returning to five areas: the Calvin cycle (RuBisCO, 3-PGA, and the ATP and NADPH needed), the C4 pathway with Kranz anatomy, photorespiration, the light reaction (photosystems, cyclic vs non-cyclic photophosphorylation and the chemiosmotic hypothesis), and pigments with early experiments. The 2024, 2025 and 2026 papers all asked Calvin cycle questions.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"432\" src=\"https:\/\/ksquareinstitute.in\/blog\/wp-content\/uploads\/2026\/10\/Photosynthesis-NEET-PYQ-Analysis-Maize-Field-1024x432.jpg\" alt=\"Photosynthesis NEET PYQ analysis showing sunlight on maize leaves and oxygen bubbles rising from a water plant\" class=\"wp-image-7141\" srcset=\"https:\/\/ksquareinstitute.in\/blog\/wp-content\/uploads\/2026\/10\/Photosynthesis-NEET-PYQ-Analysis-Maize-Field-1024x432.jpg 1024w, https:\/\/ksquareinstitute.in\/blog\/wp-content\/uploads\/2026\/10\/Photosynthesis-NEET-PYQ-Analysis-Maize-Field-300x127.jpg 300w, https:\/\/ksquareinstitute.in\/blog\/wp-content\/uploads\/2026\/10\/Photosynthesis-NEET-PYQ-Analysis-Maize-Field-768x324.jpg 768w, https:\/\/ksquareinstitute.in\/blog\/wp-content\/uploads\/2026\/10\/Photosynthesis-NEET-PYQ-Analysis-Maize-Field-1536x648.jpg 1536w, https:\/\/ksquareinstitute.in\/blog\/wp-content\/uploads\/2026\/10\/Photosynthesis-NEET-PYQ-Analysis-Maize-Field.jpg 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">This guide breaks down what NTA repeats, the tables to memorise and PYQ-pattern questions with answers. For the full plant physiology plan, see our <a href=\"https:\/\/ksquareinstitute.in\/blog\/plant-physiology-for-neet-2027\">plant physiology guide for NEET<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Want to test yourself first? <a href=\"https:\/\/ksquareinstitute.com\/questions\/neet-previous-year-questions\/biology\/photosynthesis-in-higher-plants\/questions\/\" target=\"_blank\" rel=\"noopener\"><strong>Solve the Photosynthesis PYQs<\/strong><\/a> for free, then use this guide to fix the gaps.<\/p>\n\n\n\n<div class=\"wp-block-rank-math-toc-block\" id=\"rank-math-toc\"><h2>Table of Contents<\/h2><nav><ul><li><a href=\"#why-photosynthesis-is-a-must-score-chapter\">Why Photosynthesis Is a Must-Score Chapter<\/a><\/li><li><a href=\"#photosynthesis-neet-pyq-analysis-what-nta-repeats\">Photosynthesis NEET PYQ Analysis: What NTA Repeats<\/a><\/li><li><a href=\"#early-experiments\">Early Experiments<\/a><\/li><li><a href=\"#pigments\">Pigments<\/a><\/li><li><a href=\"#the-light-reaction\">The Light Reaction<\/a><\/li><li><a href=\"#the-calvin-cycle-c-3-pathway\">The Calvin Cycle (C3 Pathway)<\/a><\/li><li><a href=\"#the-c-4-pathway-and-kranz-anatomy\">The C4 Pathway and Kranz Anatomy<\/a><\/li><li><a href=\"#photorespiration\">Photorespiration<\/a><\/li><li><a href=\"#factors-affecting-photosynthesis\">Factors Affecting Photosynthesis<\/a><\/li><li><a href=\"#worked-pyq-pattern-questions\">Worked PYQ-Pattern Questions<\/a><\/li><li><a href=\"#common-traps-in-this-chapter\">Common Traps in This Chapter<\/a><\/li><li><a href=\"#practise-every-photosynthesis-pyq\">Practise Every Photosynthesis PYQ<\/a><\/li><li><a href=\"#conclusion\">Conclusion<\/a><\/li><li><a href=\"#\u2753-faq\">FAQ<\/a><\/li><\/ul><\/nav><\/div>\n\n\n\n<h2 id=\"why-photosynthesis-is-a-must-score-chapter\" class=\"wp-block-heading\">Why Photosynthesis Is a Must-Score Chapter<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">With more than 90 past questions, Photosynthesis in Higher Plants is one of the biggest PYQ banks in Class 11 Botany, and its questions are mostly numbers and comparisons you can learn: 3 ATP and 2 NADPH per CO\u2082, P680 and P700, C3 vs C4. For chapter notes, use our <a href=\"https:\/\/ksquareinstitute.in\/blog\/photosynthesis-in-higher-plants-class-11\">Photosynthesis class 11 notes<\/a>, and to see where it sits among other chapters, check the <a href=\"https:\/\/ksquareinstitute.in\/blog\/neet-2027-syllabus-chapter-weightage\">NEET 2027 chapter weightage<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The leaf structure behind Kranz anatomy is in our <a href=\"https:\/\/ksquareinstitute.in\/blog\/anatomy-of-flowering-plants-neet-pyq-analysis\">Plant Anatomy PYQ analysis<\/a>, and chloroplast structure is in our <a href=\"https:\/\/ksquareinstitute.in\/blog\/cell-the-unit-of-life-neet-pyq-analysis\">Cell PYQ analysis<\/a>.<\/p>\n\n\n\n<h2 id=\"photosynthesis-neet-pyq-analysis-what-nta-repeats\" class=\"wp-block-heading\">Photosynthesis NEET PYQ Analysis: What NTA Repeats<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">When you sort the past NEET biology PYQs from this chapter, five question types cover nearly everything.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-white-background-color has-background has-border-color has-black-border-color\" style=\"border-width:2px\"><thead><tr><th>Question type<\/th><th>Frequency<\/th><th>What it tests<\/th><\/tr><\/thead><tbody><tr><td>Calvin cycle<\/td><td>Most frequent<\/td><td>RuBisCO, 3-PGA, three stages, ATP and NADPH per CO\u2082 and per glucose<\/td><\/tr><tr><td>C4 pathway and Kranz anatomy<\/td><td>Very frequent<\/td><td>PEP, PEP carboxylase, OAA, bundle sheath cells, examples<\/td><\/tr><tr><td>Light reaction<\/td><td>Very frequent<\/td><td>PS I and PS II, photolysis, cyclic vs non-cyclic photophosphorylation, chemiosmosis<\/td><\/tr><tr><td>Photorespiration<\/td><td>Regular<\/td><td>Oxygenase activity of RuBisCO, why C4 plants avoid it<\/td><\/tr><tr><td>Pigments and early experiments<\/td><td>Regular<\/td><td>Pigment colours, Priestley, Ingenhousz, Engelmann, van Niel<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">For a quick warm-up, try these <a href=\"https:\/\/ksquareinstitute.in\/blog\/top-5-plant-physiology-questions-for-neet\">five quick plant physiology questions<\/a>.<\/p>\n\n\n\n<h2 id=\"early-experiments\" class=\"wp-block-heading\">Early Experiments<\/h2>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-white-background-color has-background has-border-color has-black-border-color\" style=\"border-width:2px\"><thead><tr><th>Scientist<\/th><th>Finding<\/th><\/tr><\/thead><tbody><tr><td>Joseph Priestley (1770)<\/td><td>A mint plant restored air that a burning candle or a mouse had used up<\/td><\/tr><tr><td>Jan Ingenhousz<\/td><td>Sunlight is needed, and only the green parts release oxygen<\/td><\/tr><tr><td>Julius von Sachs (1854)<\/td><td>Glucose is made and stored as starch; chlorophyll is in chloroplasts<\/td><\/tr><tr><td>T.W. Engelmann<\/td><td>Using <em>Cladophora<\/em>, a prism and aerobic bacteria, showed most oxygen is released in blue and red light (the first action spectrum)<\/td><\/tr><tr><td>Cornelius van Niel<\/td><td>From purple and green sulphur bacteria, showed that the O\u2082 released comes from water, not CO\u2082<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The correct overall equation is <strong>6CO\u2082 + 12H\u2082O \u2192 C\u2086H\u2081\u2082O\u2086 + 6H\u2082O + 6O\u2082<\/strong>.<\/p>\n\n\n\n<h2 id=\"pigments\" class=\"wp-block-heading\">Pigments<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Paper chromatography separates four leaf pigments:<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-white-background-color has-background has-border-color has-black-border-color\" style=\"border-width:2px\"><thead><tr><th>Pigment<\/th><th>Colour on the chromatogram<\/th><\/tr><\/thead><tbody><tr><td>Chlorophyll a<\/td><td>Bright or blue-green<\/td><\/tr><tr><td>Chlorophyll b<\/td><td>Yellow-green<\/td><\/tr><tr><td>Xanthophylls<\/td><td>Yellow<\/td><\/tr><tr><td>Carotenoids<\/td><td>Yellow to yellow-orange<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Chlorophyll a<\/strong> is the chief pigment. The others are <strong>accessory pigments<\/strong>: they absorb a wider range of wavelengths and protect chlorophyll a from photo-oxidation.<\/p>\n\n\n\n<h2 id=\"the-light-reaction\" class=\"wp-block-heading\">The Light Reaction<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>light reaction<\/strong> happens in the grana (thylakoids) of the chloroplast. Its products are ATP, NADPH and O\u2082.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-white-background-color has-background has-border-color has-black-border-color\" style=\"border-width:2px\"><thead><tr><th>Feature<\/th><th>Photosystem I<\/th><th>Photosystem II<\/th><\/tr><\/thead><tbody><tr><td>Reaction centre<\/td><td>P700<\/td><td>P680<\/td><\/tr><tr><td>Role<\/td><td>Passes electrons to NADP\u207a<\/td><td>Linked to photolysis of water<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Photolysis:<\/strong> the water-splitting complex is linked to PS II on the inner (lumen) side of the thylakoid membrane: 2H\u2082O \u2192 4H\u207a + O\u2082 + 4e\u207b.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-white-background-color has-background has-border-color has-black-border-color\" style=\"border-width:2px\"><thead><tr><th>Feature<\/th><th>Non-cyclic photophosphorylation<\/th><th>Cyclic photophosphorylation<\/th><\/tr><\/thead><tbody><tr><td>Photosystems used<\/td><td>PS II and PS I (Z scheme)<\/td><td>PS I only<\/td><\/tr><tr><td>Products<\/td><td>ATP and NADPH<\/td><td>ATP only<\/td><\/tr><tr><td>Where<\/td><td>Grana<\/td><td>Stroma lamellae (which lack PS II and NADP reductase)<\/td><\/tr><tr><td>When<\/td><td>Normal conditions<\/td><td>When only light beyond 680 nm is available<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Chemiosmotic hypothesis:<\/strong> protons build up inside the thylakoid lumen because water is split there, the cytochrome b\u2086f complex moves protons into it, and NADP reductase removes protons from the stroma. The proton gradient drives H\u207a back through <strong>ATP synthase<\/strong>, whose CF\u2080 part forms the channel through the membrane and whose CF\u2081 part sticks into the stroma and makes ATP.<\/p>\n\n\n\n<h2 id=\"the-calvin-cycle-c-3-pathway\" class=\"wp-block-heading\">The Calvin Cycle (C3 Pathway)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Melvin Calvin used radioactive \u00b9\u2074C to show that the first stable product is the 3-carbon <strong>3-phosphoglyceric acid (3-PGA)<\/strong>. The <strong>Calvin cycle<\/strong> happens in the stroma and has three stages:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Carboxylation:<\/strong> RuBisCO fixes CO\u2082 onto ribulose bisphosphate (RuBP), giving two molecules of 3-PGA.<\/li>\n\n\n\n<li><strong>Reduction:<\/strong> 3-PGA is reduced to carbohydrate using ATP and NADPH.<\/li>\n\n\n\n<li><strong>Regeneration:<\/strong> RuBP is regenerated, using more ATP.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-white-background-color has-background has-border-color has-black-border-color\" style=\"border-width:2px\"><thead><tr><th>To fix<\/th><th>ATP<\/th><th>NADPH<\/th><th>Turns of the cycle<\/th><\/tr><\/thead><tbody><tr><td>One CO\u2082<\/td><td>3<\/td><td>2<\/td><td>1<\/td><\/tr><tr><td>One glucose<\/td><td>18<\/td><td>12<\/td><td>6<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The 3 ATP and 2 NADPH per CO\u2082 figure has been asked in several recent papers, including 2024 and 2026.<\/p>\n\n\n\n<h2 id=\"the-c-4-pathway-and-kranz-anatomy\" class=\"wp-block-heading\">The C4 Pathway and Kranz Anatomy<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">In the <strong>C4 pathway<\/strong> (Hatch and Slack pathway), CO\u2082 is first fixed in the mesophyll and then released in the bundle sheath.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-white-background-color has-background has-border-color has-black-border-color\" style=\"border-width:2px\"><thead><tr><th>Feature<\/th><th>C3 plants<\/th><th>C4 plants<\/th><\/tr><\/thead><tbody><tr><td>Primary CO\u2082 acceptor<\/td><td>RuBP (5C)<\/td><td>PEP (3C)<\/td><\/tr><tr><td>First stable product<\/td><td>3-PGA (3C)<\/td><td>Oxaloacetic acid, OAA (4C)<\/td><\/tr><tr><td>Enzyme of first fixation<\/td><td>RuBisCO<\/td><td>PEP carboxylase (PEPcase)<\/td><\/tr><tr><td>Cells doing the Calvin cycle<\/td><td>Mesophyll<\/td><td>Bundle sheath<\/td><\/tr><tr><td>Wreath of bundle sheath cells<\/td><td>Absent<\/td><td>Present<\/td><\/tr><tr><td>Photorespiration<\/td><td>Present<\/td><td>Absent<\/td><\/tr><tr><td>Examples<\/td><td>Rice, wheat<\/td><td>Maize, sorghum<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Kranz anatomy:<\/strong> large bundle sheath cells form a wreath around the vascular bundles. They have many chloroplasts, thick walls that block gas exchange, and no intercellular spaces. Mesophyll cells of C4 plants lack RuBisCO.<\/p>\n\n\n\n<h2 id=\"photorespiration\" class=\"wp-block-heading\">Photorespiration<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">RuBisCO can bind O\u2082 as well as CO\u2082. When it binds O\u2082, RuBP gives one 3-PGA and one phosphoglycolate. <strong>Photorespiration<\/strong> makes no sugar and no ATP; it uses up ATP instead. C4 plants avoid it because they concentrate CO\u2082 in the bundle sheath, so RuBisCO acts mainly as a carboxylase there. RuBisCO is the most abundant enzyme in the world.<\/p>\n\n\n\n<h2 id=\"factors-affecting-photosynthesis\" class=\"wp-block-heading\">Factors Affecting Photosynthesis<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Blackman&#8217;s law of limiting factors (1905):<\/strong> when a process depends on several factors, its rate is set by the one nearest its minimum value.<\/li>\n\n\n\n<li>Light saturation happens at about <strong>10% of full sunlight<\/strong>, so light rarely limits plants in nature, except in shade or dense forests.<\/li>\n\n\n\n<li><strong>CO\u2082 is the major limiting factor.<\/strong> C3 plants respond to higher CO\u2082 and saturate only beyond about 450 \u00b5L\/L, while C4 plants saturate at about 360 \u00b5L\/L. This is why tomatoes and bell peppers give higher yields in CO\u2082-enriched greenhouses.<\/li>\n<\/ul>\n\n\n\n<h2 id=\"worked-pyq-pattern-questions\" class=\"wp-block-heading\">Worked PYQ-Pattern Questions<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q1. The first stable product of CO\u2082 fixation in C4 plants is:<\/strong> (a) 3-PGA (b) Oxaloacetic acid (c) Malic acid (d) RuBP<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Answer: (b) Oxaloacetic acid,<\/strong> a 4-carbon compound. In C3 plants it is 3-PGA.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q2. How many ATP and NADPH are needed to make one glucose molecule through the Calvin cycle?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Answer: 18 ATP and 12 NADPH,<\/strong> from six turns at 3 ATP and 2 NADPH per CO\u2082.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q3. Cyclic photophosphorylation:<\/strong> (a) Uses PS II only (b) Produces ATP and NADPH (c) Produces only ATP and involves only PS I (d) Releases O\u2082<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Answer: (c).<\/strong> It happens in the stroma lamellae, which lack PS II.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q4. The oxygen released in photosynthesis comes from water. Who showed this?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Answer: Cornelius van Niel,<\/strong> working with purple and green sulphur bacteria.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q5. Why is photorespiration absent in C4 plants?<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Answer:<\/strong> C4 plants concentrate CO\u2082 around RuBisCO in the bundle sheath cells, so the enzyme works as a carboxylase and not an oxygenase.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q6. On a chromatogram, chlorophyll b appears:<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Answer: Yellow-green.<\/strong> Chlorophyll a appears bright or blue-green.<\/p>\n\n\n\n<h2 id=\"common-traps-in-this-chapter\" class=\"wp-block-heading\">Common Traps in This Chapter<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Writing 3-PGA as the first product in C4 plants (it is OAA)<\/li>\n\n\n\n<li>Saying the Calvin cycle happens in the grana (it happens in the stroma)<\/li>\n\n\n\n<li>Linking photolysis with PS I instead of PS II<\/li>\n\n\n\n<li>Saying cyclic photophosphorylation makes NADPH<\/li>\n\n\n\n<li>Placing the Calvin cycle of C4 plants in mesophyll cells<\/li>\n\n\n\n<li>Saying the O\u2082 released comes from CO\u2082<\/li>\n<\/ul>\n\n\n\n<h2 id=\"practise-every-photosynthesis-pyq\" class=\"wp-block-heading\">Practise Every Photosynthesis PYQ<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">This photosynthesis NEET PYQ analysis shows you where the marks are. Solving real past questions makes the numbers and comparisons automatic. Every Photosynthesis in Higher Plants previous year question is available chapter-wise, free:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\ud83d\udc49 <strong><a href=\"https:\/\/ksquareinstitute.com\/questions\/neet-previous-year-questions\/biology\/photosynthesis-in-higher-plants\/\" target=\"_blank\" rel=\"noopener\">Solve all Photosynthesis NEET PYQs<\/a><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Keep the C3 vs C4 and photophosphorylation tables beside you for the first round, then solve the second round without them.<\/p>\n\n\n\n<h2 id=\"conclusion\" class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Photosynthesis in Higher Plants has a large PYQ bank, but its questions keep returning to the same numbers and comparisons. Use this photosynthesis NEET PYQ analysis to master the Calvin cycle, the C4 pathway and Kranz anatomy, photorespiration and the light reaction. Then practise the past questions until each answer comes without thinking.<\/p>\n\n\n\n<h2 id=\"\u2753-faq\" class=\"wp-block-heading\">\u2753 FAQ<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q: How many questions come from Photosynthesis in NEET?<\/strong> A: Usually two to three questions a year, mostly on the Calvin cycle, the C4 pathway, photorespiration and the light reaction.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q: What is the most important topic in Photosynthesis for NEET?<\/strong> A: The Calvin cycle, especially RuBisCO, 3-PGA and the 3 ATP and 2 NADPH needed per CO\u2082. The C4 pathway comes next.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q: What is the difference between cyclic and non-cyclic photophosphorylation?<\/strong> A: Non-cyclic uses both photosystems and makes ATP and NADPH. Cyclic uses only PS I, happens in the stroma lamellae and makes only ATP.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q: What is Kranz anatomy?<\/strong> A: The arrangement in C4 leaves where large bundle sheath cells with many chloroplasts, thick walls and no intercellular spaces form a wreath around each vascular bundle.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q: Why do C4 plants not show photorespiration?<\/strong> A: They concentrate CO\u2082 in the bundle sheath cells, so RuBisCO works as a carboxylase there.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Q: Where can I practise Photosynthesis NEET PYQs for free?<\/strong> A: You can solve every Photosynthesis in Higher Plants previous year question chapter-wise for free using the practice links in this article.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Quick answer: A photosynthesis NEET PYQ analysis shows that Photosynthesis in Higher Plants gives about two to three questions a year, and NTA keeps returning to five areas: the Calvin cycle (RuBisCO, 3-PGA, and the ATP and NADPH needed), the C4 pathway with Kranz anatomy, photorespiration, the light reaction (photosystems, cyclic vs non-cyclic photophosphorylation and [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":7141,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,68,2],"tags":[4362,433,2804,4361,436,7,15,4008,2328,4363,3247,4360,4364],"class_list":["post-7140","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-study-tips","category-biology","category-neet","tag-c4-pathway","tag-calvin-cycle","tag-class-11-biology","tag-kranz-anatomy","tag-light-reaction","tag-neet-2027","tag-neet-biology","tag-neet-chapter-wise-pyq","tag-neet-pyq","tag-photophosphorylation","tag-photorespiration","tag-photosynthesis-in-higher-plants","tag-rubisco"],"_links":{"self":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts\/7140","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/comments?post=7140"}],"version-history":[{"count":1,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts\/7140\/revisions"}],"predecessor-version":[{"id":7142,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts\/7140\/revisions\/7142"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/media\/7141"}],"wp:attachment":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/media?parent=7140"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/categories?post=7140"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/tags?post=7140"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}