## CORE INFORMATION\n✓ **Answer**: A\n## CONCEPT FRAMEWORK\n\t**Primary Concept**: Photosynthetic pathways (C3 and C4) and their associated features.\n\t**Related Topics**: Carbon fixation, plant anatomy, biochemical reactions\n\t**Prerequisites**: Basic understanding of photosynthesis, the C3 and C4 pathways, and the Calvin cycle.\n## SOLUTION PATHWAY\n**Given Information**:\n\tThe question presents four pairs of terms related to photosynthesis.\n\tWe need to identify the incorrect pairing.\n**Method & Steps**:\n\t1. Analyze each pair for its correctness based on known photosynthetic pathways:\n\t\tReasoning: We need to understand the defining characteristics of each pathway and their related biochemical compounds and structures.\n\t2. Identify the incorrect pairing based on the analysis.\n\t\tWorking: \n\t\tA. ${C_3}$- Maize: Maize is a ${C_4}$ plant, not a ${C_3}$ plant. This is a mismatch.\n\t\tB. ${C_4}$ - Kranz anatomy: ${C_4}$ plants have Kranz anatomy, where vascular bundles are surrounded by bundle sheath cells, which participate in the C4 pathway. This is correct.\n\t\tC. Calvin cycle - PGA: The Calvin cycle produces 3-phosphoglycerate (PGA) as a primary product. This is correct.\n\t\tD. ${C_4}$ - OAA: Oxaloacetate (OAA) is the first carbon fixation product in the ${C_4}$ pathway. This is correct.\n\t3. Determine the incorrect pair.\n\t\tResult: The incorrect pair is A. ${C_3}$- Maize.\n\t\tVerification: All other pairs are correct as per the standard understanding of photosynthesis.\n ## OPTION ANALYSIS\n[A] ✓: Maize is a C4 plant. C3 plants lack Kranz anatomy, and the first stable product is PGA. Maize uses PEP carboxylase to fix CO2 into OAA, before it enters the calvin cycle. \n[B] :x: C4 plants are known for having Kranz anatomy.\n[C] :x: PGA is the first stable product of the Calvin cycle.\n[D] :x: OAA is the initial product of carbon fixation in C4 plants\n ## LEARNING AIDS\n\t**Common Mistakes**:\n\t\t1.[Error 1]: Confusing C3 and C4 plants. [How to avoid]: Memorize examples of C3 and C4 plants and understand their differences in anatomy and carbon fixation.\n\t\t2.[Error 2]: Misunderstanding the initial products of the Calvin cycle and the C4 pathway. [How to avoid]: Understand the detailed steps of each pathway and the different molecules involved.\n\t**Quick Tips**:\n\t\t1.[Helpful shortcut]: Remember that C4 plants have Kranz anatomy and their first stable product is OAA, while C3 plants lack Kranz anatomy and the first stable product is PGA.\n\t\t2.[Memory aid]: Use mnemonics or diagrams to memorize the differences between C3 and C4 pathways.

The correct Option is "${C_3}$- Maize"

NEET Botany Photosynthesis in Higher Plants MCQs

Prepare for NEET Biology Photosynthesis in Higher Plants with MCQs & PYQs on NEET.GUIDE. Get free practice, previous year questions, and expert guidance to grasp light and dark reactions.