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Photosynthesis, respiration, nutrition, growth - master the entire Plant Physiology unit. 15+ NEET marks await!
Photosynthesis reactions confusing?
Light and dark reactions explained step-by-step with diagrams.
Water transport mechanisms unclear?
Root pressure, transpiration pull - visual explanations.
Too many pathways to remember?
C3, C4, CAM, respiration - organized approach with comparisons.
Plant hormones overwhelming?
Hormone-by-hormone approach with effects and applications.
Complete Unit V coverage
Transport in plants, absorption, transpiration - complete coverage.
Essential elements, deficiency symptoms, nitrogen cycle.
Light reactions, Calvin cycle, C4, CAM pathways - detailed.
Glycolysis, Krebs cycle, ETS - step-by-step teaching.
Growth phases, differentiation, development concepts.
Auxins, gibberellins, cytokinins - functions and applications.
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Real stories from students who achieved their NEET dreams with us
"Plant Physiology is the most underrated NEET unit. Cerebrum teaching on transpiration, photosynthesis, and mineral nutrition made this my highest-scoring unit."
Snehal Kulkarni
AIR 278 | AIIMS Delhi
"The plant physiology sessions covered C3, C4, and CAM pathways with clear diagrams. I got 3 questions from this unit alone correct in NEET."
Anand Rathi
AIR 512 | JIPMER Puducherry
"Most students skip plant physiology for human physiology. Cerebrum made both equally interesting. My plant biology preparation gave me easy marks in NEET."
Priya Jain
AIR 734 | MAMC Delhi
Join 15,000+ successful students
Plant Physiology is a high-weightage unit contributing 15-18 marks to NEET, with Photosynthesis in Higher Plants and Respiration in Plants as the most frequently tested chapters. Photosynthesis questions cover the light reactions (cyclic and non-cyclic photophosphorylation occurring in thylakoid membranes), the Calvin cycle (carbon fixation by RuBisCO in the stroma), and the comparative biochemistry of C3, C4, and CAM pathways. C4 plants like maize use Kranz anatomy with bundle sheath cells to concentrate CO2 and avoid photorespiration, while CAM plants like cacti fix CO2 at night using PEP carboxylase. Respiration questions focus on glycolysis (occurring in the cytoplasm), the Krebs cycle (in the mitochondrial matrix), and the electron transport chain (on the inner mitochondrial membrane). The net ATP yield of 36-38 molecules per glucose molecule through aerobic respiration versus 2 ATP through anaerobic fermentation is a standard calculation tested in NEET.
Transport mechanisms in plants include water absorption by roots through osmosis, ascent of sap through the xylem driven by transpiration pull (cohesion-tension theory), and translocation of sugars through the phloem via the pressure flow hypothesis proposed by Munch. NEET questions test the understanding of root pressure, guttation, and the role of aquaporins in water movement. Mineral Nutrition covers the classification of essential elements into macronutrients (C, H, O, N, P, K, Ca, Mg, S) and micronutrients (Fe, Mn, Cu, Mo, Zn, B, Cl, Ni), with deficiency symptoms that follow specific patterns. For example, nitrogen deficiency causes chlorosis in older leaves first because nitrogen is mobile and translocated to younger leaves. Nitrogen metabolism, including biological nitrogen fixation by Rhizobium through the nitrogenase enzyme complex, is another important topic where specific bacterial associations with leguminous plants are tested.
| Feature | C3 Plants | C4 Plants | CAM Plants |
|---|---|---|---|
| CO2 Fixation Enzyme | RuBisCO only | PEP carboxylase + RuBisCO | PEP carboxylase (night) + RuBisCO (day) |
| Kranz Anatomy | Absent | Present | Absent |
| Photorespiration | High | Negligible | Low |
| Example | Wheat, Rice | Maize, Sugarcane | Cactus, Pineapple |
Find answers to common questions about our courses and teaching methodology
Plant Physiology (Unit V) is the highest-weightage Class 11 unit with 12-15 questions! Chapters covered: Transport, Mineral Nutrition, Photosynthesis, Respiration, Plant Growth. Must-score unit!
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