ICAR JRF Plant Science PYQs | Cell & Cell Division | Most Expected Questions for 2026

Описание: In this video, we cover ICAR JRF Plant Science Previous Year Questions (PYQs) from the important topic Cell & Cell Division.

This is one of the most important units for ICAR JRF 2026, with repeated questions asked from mitosis, meiosis, chromosome behavior, and cell cycle.

🎯 What You Will Learn

✔ Important PYQs from Cell Biology
✔ Frequently asked JRF questions
✔ Concept-based explanation
✔ Most expected questions for 2026
✔ Quick revision strategy

📚 Topics Covered

🧬 Cell structure
🧬 Prokaryotic vs Eukaryotic cell
🧬 Cell organelles
🧬 Cell cycle phases
🧬 Mitosis
🧬 Meiosis
🧬 Chromosome number changes
🧬 Previous year MCQs

🚀 Useful For
ICAR JRF Plant Science
Genetics & Plant Breeding exams
Botany / Life Science entrance exams
Agriculture competitive exams
🔔 Don’t Forget

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🔰 00:00 – 03:00
Introduction + strategy for PYQs (revision focus)
🌿 CELL WALL (VERY IMPORTANT)
🧱 03:00 – 08:00
Components of plant cell wall
Cellulose, Hemicellulose, Pectin
% composition concept
🧬 08:00 – 11:00
Cell wall layers
Middle lamella
Primary wall
Secondary wall
🧪 RIBOSOME & rRNA (IMPORTANT)
🧪 11:00 – 17:00
Eukaryotic ribosome (80S = 60S + 40S)
rRNA types: 28S, 18S, 5.8S, 5S
Prokaryotic vs Eukaryotic difference
🧬 MITOCHONDRIAL INHERITANCE 🔥
🧬 17:00 – 21:00
Maternal inheritance concept
Cytoplasmic inheritance
Mitochondrial DNA transfer
🔬 CELL ORGANELLES (MATCHING TYPE)
🔬 21:00 – 25:00
Mitochondria → ATP production
RER → Protein synthesis
Golgi → Packaging
Lysosome → Digestion
🌿 PEROXISOME + METABOLISM
🌿 25:00 – 29:00
Fat metabolism (β-oxidation)
Catalase enzyme
Photorespiration role
🔁 CELL DIVISION (VERY IMPORTANT 🔥)
🔁 29:00 – 34:00
Metaphase → chromosomes most visible
Mitosis stages overview
📊 34:00 – 37:00
Longest phase:
Cell cycle → Interphase
Interphase → G1
🧬 PROKARYOTE vs EUKARYOTE
🧬 37:00 – 41:00
Differences:
Nucleus
Ribosome (70S vs 80S)
DNA type
Cell division
🌊 CELL TRANSPORT (IMPORTANT)
🌊 41:00 – 43:30
Phagocytosis vs Pinocytosis
Solid vs liquid intake
🧬 MITOSIS SEQUENCE (EXAM TYPE)
🔁 43:30 – 46:30
Sequence:
Prophase → Metaphase → Anaphase → Telophase
Spindle formation & chromosome movement
⚙️ CELL STRUCTURES & FUNCTIONS
⚙️ 46:30 – 48:30
Tubulin → spindle fibers
Dictyosomes → cell wall
Aquaporins → water transport
🌿 FINAL RAPID MCQs
🎯 48:30 – 50:26
Vacuole → osmoregulation
Golgi → modification (glycosylation)
Chloroplast → plants & algae
Ribosome → RNA + protein
Purine vs Pyrimidine synthesis


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