Fundamentals of Cell Structure and Function

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📋 Course Outline

  1. Cell as Basic Unit
  2. Cell Discovery and Scientists
  3. Cell Organelles and Functions
  4. Plasma Membrane Properties
  5. Diffusion and Osmosis
  6. Cell Wall and Cell Types
  7. Prokaryotic vs Eukaryotic Cells

📖 1. Cell as Basic Unit

🔑 Key Concepts & Definitions

Cell: The smallest structural and functional unit of life. It forms the basic building block of all living organisms, enabling them to perform essential life processes.

Structural unit: All living organisms are made up of cells. This means that the fundamental architecture of any organism is composed of one or more cells.

Functional unit: The cell is the smallest structure capable of performing basic life processes. It carries out functions necessary for survival, such as growth, reproduction, and response to the environment.

Cell theory: All organisms are made up of cells, and all cells arise only from pre-existing cells. This principle emphasizes the continuity of life through cell division and reproduction.

📝 Essential Points

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Prévia do quiz

1. How does the role of a cell as a structural unit differ from its role as a functional unit?

2. Which scientist is credited with discovering dead cells in a cork slice in 1665?

3. What is the primary role of the cell wall in plant cells?

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Prévia dos flashcards

Cell — basic unit of life?

Smallest structural and functional unit.

Cell discovery — first scientist?

Robert Hooke in 1665.

Nucleus — role?

Controls cell activities and stores DNA.

Plasma membrane — property?

Selective permeability and flexibility.

Diffusion — mechanism?

Molecules move from high to low concentration.

Osmosis — process?

Water moves through semi-permeable membrane.

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