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.
Cell wall — function?
Provides strength and prevents bursting.
Prokaryotic vs Eukaryotic — difference?
Prokaryotes lack membrane-bound organelles.
Rough ER — function?
Protein synthesis with ribosomes.
Plasmolysis — occurs in?
Plant cells in hypertonic solutions.
Unicellular organisms — characteristic?
Perform all life functions within one cell.
Electron microscope — significance?
Revealed detailed cell structures.
Cell theory — proposers?
Schleiden, Schwann, Virchow.
Cell membrane — composition?
Lipids and proteins.
Answer 7 questions on Fundamentals of Cell Structure and Function.
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?
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