Microbiology UTA 2460 Chapter 3 Correctly
Answered Questions | UpToDate | Already
Graded A+
spontaneous generation
🗸🗸🗸: ancient belief: life can arise from nonliving matter
Key scientists of spontaneous generation
🗸🗸🗸: Francesco Redi, John Needham, Lazzaro Spallanzani
Francesco Redi
🗸🗸🗸: This scientist disproved spontaneous generation by showing that maggots do not
spontaneously arise from decaying meat.
John Needham
🗸🗸🗸: Believed there was a life force that caused spontaneous generation
Lazzaro Spallanzani
🗸🗸🗸: replicated redi and needham's experiments, disproved of spontaneous generation
Louis Pasteur
🗸🗸🗸: Disproved of spontaneous generation, swan neck experiment (won Alhumbert prize)
1|Page
,Modern Cell Theory
🗸🗸🗸: All living organisms are composed of one or more cells
2 Basic Tenents of Modern Cell Theory
🗸🗸🗸: 1. Cell is a basic unit of structure
2. All cells come from existing cells (recall spontaneous generation)
People of Cell Theory: Tenet 1
🗸🗸🗸: 1. Robert Hooke- cork tissue
2. Matthias Schleiden- plant tissue
3. Theodor Schwann- compared plant and animal cells
People of Cell Theory: Tenet 2
🗸🗸🗸: 1. Robert Remak- cells come from other cells (i.e. cell division)
2. Rudolf Virchow -published Cellular Pathology
(all cells arise from cells)
Endosymbiotic Theory
🗸🗸🗸: Origin theory about cellular structures (how Mitochondria and chloroplasts were
originally prokaryotic cells)
2|Page
, Famous scientist: Konstantin Mereschkowski, Ivan Wallin, Lynn Margulis
Konstantin Mereschkowski (1905)
🗸🗸🗸: Proposed that chloroplasts could reproduce independently and must have lived outside
plant cell
(said DNA could be found in organelles)
Ivan Wallin (1926)
🗸🗸🗸: showed mitochondria outside of cell (but likely contamination)
also said DNA could be found in organelles
Lynn Margulis (1967)
🗸🗸🗸: mitochondria and chloroplasts are of prokaryotic origin
-
DNA, ribosomes, binary fission
Germ Theory of Disease
🗸🗸🗸: Diseases may result from microbial infection
Famous scientist: Girolamo Fracastoro, Ignaz Semmelweis, John Snow, Louis Pasteur, Joseph
Lister, Robert Koch
Girolamo Fracastoro (1546)
3|Page
Answered Questions | UpToDate | Already
Graded A+
spontaneous generation
🗸🗸🗸: ancient belief: life can arise from nonliving matter
Key scientists of spontaneous generation
🗸🗸🗸: Francesco Redi, John Needham, Lazzaro Spallanzani
Francesco Redi
🗸🗸🗸: This scientist disproved spontaneous generation by showing that maggots do not
spontaneously arise from decaying meat.
John Needham
🗸🗸🗸: Believed there was a life force that caused spontaneous generation
Lazzaro Spallanzani
🗸🗸🗸: replicated redi and needham's experiments, disproved of spontaneous generation
Louis Pasteur
🗸🗸🗸: Disproved of spontaneous generation, swan neck experiment (won Alhumbert prize)
1|Page
,Modern Cell Theory
🗸🗸🗸: All living organisms are composed of one or more cells
2 Basic Tenents of Modern Cell Theory
🗸🗸🗸: 1. Cell is a basic unit of structure
2. All cells come from existing cells (recall spontaneous generation)
People of Cell Theory: Tenet 1
🗸🗸🗸: 1. Robert Hooke- cork tissue
2. Matthias Schleiden- plant tissue
3. Theodor Schwann- compared plant and animal cells
People of Cell Theory: Tenet 2
🗸🗸🗸: 1. Robert Remak- cells come from other cells (i.e. cell division)
2. Rudolf Virchow -published Cellular Pathology
(all cells arise from cells)
Endosymbiotic Theory
🗸🗸🗸: Origin theory about cellular structures (how Mitochondria and chloroplasts were
originally prokaryotic cells)
2|Page
, Famous scientist: Konstantin Mereschkowski, Ivan Wallin, Lynn Margulis
Konstantin Mereschkowski (1905)
🗸🗸🗸: Proposed that chloroplasts could reproduce independently and must have lived outside
plant cell
(said DNA could be found in organelles)
Ivan Wallin (1926)
🗸🗸🗸: showed mitochondria outside of cell (but likely contamination)
also said DNA could be found in organelles
Lynn Margulis (1967)
🗸🗸🗸: mitochondria and chloroplasts are of prokaryotic origin
-
DNA, ribosomes, binary fission
Germ Theory of Disease
🗸🗸🗸: Diseases may result from microbial infection
Famous scientist: Girolamo Fracastoro, Ignaz Semmelweis, John Snow, Louis Pasteur, Joseph
Lister, Robert Koch
Girolamo Fracastoro (1546)
3|Page
