Topic 1 Flashcards
Carolus Linnaeus
- The first taxonomist
BINOMAIAL NOMENCLATURE GUY - Not Linnaeus: The 5Kingdom separated organisms by anatomical, physiological and nutritional traits - morphological traits
The order of ranking (by Linnaeus)
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species (Dear King Philip Came Over For Good Soup)
The “Kingdoms” in the 5 Kingdom System
Monera, Protista, Fungi, Plantae, Animalia
In the 5 kingdom system, the unicellular kingdoms are
Monera, Protista, Fungi
In the 5 kingdom system, the photosynthetic kingdoms are
Monera, Protista, Plantae
In the 5 kingdom system, the motile kingdoms are
Monera, Protista, Animalia
In the 5 kingdom system, the kingdoms with membrane-bound nuclei are
Protista, Fungi, Plantae, Animalia
In the 5 kingdom system, the heterotrophic kingdoms are
Monera, Protista, Fungi, Animalia
All life stores genetic information within
DNA molecules
What translates information within DNA molecules into proteins
Ribosomes (rRNA)
Mutations occur ___ over time
Randomly. Nucleotides are crucial to the function of the ribosome, but some can change
The nucleotide sequences of the ribosome gene among species can be compared and the more similar the sequences,
The more closely related the species are
The more different the nucleotide sequences
The longer since they diverged
Most of the time, mutations have what effect.
Sometimes, what effect?
Other times, what effect?
No change
Death
Beneficial (passes on to future generations)
The 3 Domain Classification separates groups based on
Genetic information, or DNA (based on similarities and differences in molecular information)
The “old” 3-Domain System is that
Archaea branched off from Eurkarya
The “new” 3-Domain System is that
Eukarya evolved from archaea (the archaea ancestors are called Asgardians, that engulfed a bacteria to form eukarya)
LUCA
Last universal common ancestor
The traits of Domain bacteria
- All prokaryotes
- All unicellular
- Cell walls made of peptidoglycan
- Small (1-5 micrometers)
The traits of Domain archaea
- All prokaryotes
- All unicellular
- Cell walls made up of pseudopeptidoglycan
- Small (1-5 micrometers)
The traits of Domain eukarya
- Eukaryotic cells
- Unicellular or multicellular
- Some have cell walls (e.g., pectin, chitin, cellulose)
- Large cells (10x than prokaryotes)
The differences between prok and euk are
- Eukaryotes have membrane-bound organelles (pro does not)
- Eukaryotes have multiple linear DNA but prokaryotes are single circular DNA
- Eukaryotes have nucleus but pro does not
- 70S ribosomes VS 80S
The similarities between prok and euk are
- Use DNA
- Have cell membranes
- Have cytosol
Everytime a cell doubles in size
SA:V decreases by half