The Cellular Basis of Life (Leaving Cert Biology): Flashcards
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Practise the cards
15 cards from this deck
Scientist who discovered cells & year
Scientist who discovered cells & year
Robert Hooke, 1665
Material Hooke examined when discovering cells
Material Hooke examined when discovering cells
Cork
Scientists who proposed cell theory (1830s)
Scientists who proposed cell theory (1830s)
Matthias Schleiden and Theodor Schwann
Cell theory principle 1
Cell theory principle 1
All living things are composed of one or more cells
Cell theory principle 2
Cell theory principle 2
The cell is the most basic unit of life
Cell theory principle 3
Cell theory principle 3
All cells arise only from pre-existing cells
Define unicellular organism
Define unicellular organism
Made of just one cell that performs all life functions
Number of cells in human body
Number of cells in human body
Approximately 30 trillion cells
Light microscope max magnification
Light microscope max magnification
×1500
Electron microscope max magnification
Electron microscope max magnification
×100,000
Magnification formula
Magnification formula
(Image = Actual × Magnification)
Function of nucleus
Function of nucleus
Control centre containing chromosomes with genetic information
Material that makes up plant cell wall
Material that makes up plant cell wall
Cellulose
Function of chloroplasts
Function of chloroplasts
Carry out photosynthesis using chlorophyll
Contents of plant cell vacuole
Contents of plant cell vacuole
Cell sap (water, salts, sugars, and pigments)