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Exam (elaborations)

Biology 103 Cells Questions And Answers

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  • Course
  • Biology 103
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  • Biology 103

What is the endomembranous system? ~ Helps compartmentalize the cell for efficient work. Made of membranes connected directly OR by vesicle transfer. (Also restricts enzyme reactions to certain areas.) Which organelles are involved in the endomembranous system? ~ Endoplasmic reticulum G...

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  • August 7, 2024
  • 13
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Biology 103
  • Biology 103
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Biology 103 Cells Questions
And Answers

What is a cell?


✓~ The smallest unit of life




What are the 5 characteristics of life a cell can perform?


✓~ Organization

Can acquire materials/energy


Responds to stimuli


Reproduces and develops


Adapts, has adaptations




Who were the "cell" pioneers? what did they do?


✓~ Scottish botanist Robert Brown - described the nucleus of cells (1831)

Matthias Jakob Schleiden - All plants are composed of cells (Elodea) (1838)


Theodor Schwann - All animals are composed of cells (1839)

, Rudolf Virchow - All cells arise from existing cells. (1850's)




What is the cell theory?


✓~ All organisms are composed of cells

The cell is the most basic unit of life (structure & function)


All cells arise from pre-existing living cells BIOGENESIS




What is a "prokaryotic" cell?


✓~ Lacks a membrane-bound nucleus

Can be divided into 2 domains: Bacteria and Archaea




How do prokaryotic cells differ from Eukaryotic cells?


✓~ prokaryotic cells are simpler and smaller




What constitutes the "cell envelope" of a prokaryotic call?

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