Question 2How is a prokaryotic cell different from a eukaryotic cell?

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Bright Tutorials · Accepted Answer

Prokaryotic cellEukaryotic cellCells contain primitive and undefined nucleus. Nuclear membrane is absent.Have a well-defined nucleus along with a nuclear membraneMembrane bound cell organelles are absent.Membrane bound cell organelles are present.Example – Blue-green algae.Example – Humans

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  Science | Chapter 5: The Fundamental Unit of LifeWeb Content &mdash; Quick Reference
  
    Chapter 5: The Fundamental Unit of Life &mdash; Quick Reference

cell theory
      cell organelles
      plasma membrane
      osmosis
      plant cell
      animal cell
      nucleus
      mitochondria

Quick Revision Points
      
        Cell theory: all organisms made of cells; cell = basic unit; cells from pre-existing cells
Prokaryotic (no nuclear membrane, bacteria) vs Eukaryotic (true nucleus, plants/animals)
Plasma membrane: selectively permeable, lipid bilayer
Osmosis: water from dilute → concentrated through semipermeable membrane
Organelles: Nucleus (control), Mitochondria (powerhouse), ER (transport), Golgi (packaging), Lysosomes (suicide bags), Plastids (photosynthesis), Vacuoles (storage)
Plant cell: cell wall, large vacuole, plastids present. Animal cell: no cell wall, centrioles present

Exam Tips for Chapter 5
      
        Read the detailed chapter notes for complete coverage of all NCERT topics.
        Practice all NCERT in-text and back exercise questions &mdash; they are frequently asked in exams.
        Focus on comparison tables, diagrams, and definitions &mdash; these are high-scoring areas.
        For numericals (if applicable), practice at least 20 problems of varying difficulty.
        Refer to the practice question bank (200+ questions) for thorough preparation.

Related Resources
      
        Detailed Notes: ch05-the-fundamental-unit-of-life.html
        Practice Questions: 100+ questions with answers in 05-practice-questions/
        Chapter Test: 30-mark test paper in 06-tests/chapter-tests-30marks/
        Formula Sheet: Complete formula reference in 03-teacher-aid/formula-sheet.html

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The Fundamental Unit of Life — Question 2

Question 2

Chapter 5: The Fundamental Unit of Life — Quick Reference

Quick Revision Points

Prokaryotic cell	Eukaryotic cell
Cells contain primitive and undefined nucleus. Nuclear membrane is absent.	Have a well-defined nucleus along with a nuclear membrane
Membrane bound cell organelles are absent.	Membrane bound cell organelles are present.
Example – Blue-green algae.	Example – Humans