Biology · Class 11 · Chapter 8
Cell: The Unit of Life
13 lessons112 min7 simulations10 practice questions
This chapter treats the cell as the smallest unit that can carry out all the activities of life on its own, and then takes it apart piece by piece. It contrasts prokaryotic and eukaryotic organisation and walks through every major organelle, from the plasma membrane to the nucleus, which sets up the later chapters on biomolecules, cell division, photosynthesis and respiration.
Also called: cell biology · cell organelles · cell structure
Lessons
13 lessons · 112 min
01What is a cell, and the cell theoryNCERT §8.1–§8.26 min02An overview of the cellNCERT §8.36 min03Prokaryotic cells: general featuresNCERT §8.46 min04Cell envelope, its modifications, ribosomes and inclusion bodiesNCERT §8.4.1–§8.4.27 min05Eukaryotic cells and the cell membraneNCERT §8.5, §8.5.110 min1 sim06Cell wallNCERT §8.5.29 min1 sim07Endomembrane system: ER and Golgi apparatusNCERT §8.5.3–§8.5.3.210 min1 sim08Endomembrane system: lysosomes and vacuolesNCERT §8.5.3.3–§8.5.3.46 min09MitochondriaNCERT §8.5.47 min10PlastidsNCERT §8.5.510 min1 sim11Ribosomes, cytoskeleton, cilia, flagella and centriolesNCERT §8.5.6–§8.5.913 min2 sims12Nucleus and microbodiesNCERT §8.5.10–§8.5.119 min1 sim13Chapter reviewMust-know facts, traps and formulas13 min
Simulations
7 in this chapter
Crossing the cell membraneIn: Eukaryotic cells and the cell membraneLayers of a plant cell wallIn: Cell wallThe secretory routeIn: Endomembrane system: ER and Golgi apparatusTwo membranes, two organellesIn: PlastidsCilium axoneme or centriole?In: Ribosomes, cytoskeleton, cilia, flagella and centriolesSvedberg units in a centrifugeIn: Ribosomes, cytoskeleton, cilia, flagella and centriolesWhere is the centromere?In: Nucleus and microbodies