Diversity unit 1 Flashcards
Why classify animals
differentiate, to find ancestors, to find relatives, to easily classify new species
phylogeny
compare through evolutionary history
morphology
structure of animals
biology
if they can reproduce together
Taxonomy
the action of classifying and naming
who developed binomial nomenclature
carols linnaeus
binomial nomenclature
the naming system
3 different morphology
DNA, anatomical (external), physiological (internal)
types of biodiversity
genetic, species, ecosystem
eukaryotic
nucleus, complicated, bigger
prokaryotic cells
have no nucleus, simple, small
3 different domains
bacteria, archaea, eukaryotic
domain bacteria is
- a decomposer
- can make people sick
- makes yogurt
- eukaryote
domain archaea is
- prokaryotic
- lives in harsh environments
domain eukaryote is
- eukaryote
- animals, plants, fungi, protists
kingdom different categories
animals, plants, protists, bacteria, fungi, anarchea
main charcteristics of kingdom (what are we looking for)
of cells
pro or eu
reproduction
auto or hetero (nutrition)
cell wall
What are viruses
DNA/RNA and a protein coat (capsid) that invades a host and depends on it
what do viruses lack
cytoplasm, organelles, and cell membranes
what re viruses size
30nm to 300nm
shapes of viruses
polyhedral, helical, enveloped, complex
polyhedral virus example
polio
helical virus examples
rabies
enveloped virus examples
covid
what is the lystic cycle acronym
AERIAL (attachment, entry/injection, replication, assembly, lysis and release)
What is the lysogenic Cycle
viral dna joins hosts chromosomes, attaches to nucleus, then gets activated in an external trigger to produce new virus, then goes into lysis
what is retrovirus
uses RNA for genetics, passes its viral DNA and turns it into DNA through reverse transcriptase, goes through cell cycle and passes the mutated DNA to daughter cells, can remain dominant for years w/ no harm to host. The provirus can separate from the host chromosomes and complete lytic cycle
what is reverse transcriptase
passing viral DNA as hosts DNA (retrovirus)
viruses connection to humans
gene therapy
what are prions
disease causing protiens that become harmful when they change shape
example of prions disease
mad cow
Bacteria
is a small independent living organism, good or bad, lives in different environments
characteristics of a bacteria
unicellular, prokaryotic, singular DNA loop, small ribosomes, cell wall of peptidoglycan
what kingdom is bacteria in
bacteria dumbass
size of bacteria
0.2-10um
shapes of bacteria
cocci, bacilli, coccbailli, vibrios, spiral, spirochetes, star, rectangle, pleomorphic
what is diplo
2
what is tetrad
4 (cocci)
what is sarcinae
8 (cocci)
what is steplo
chain
what is straphlo
grape
ways bacterias move
w/ flagella or gliding bacteria
gram stain classification
bacteria classification on its response to being on the cell wall, they show differences in amino acids and sugar molecules
gram positive characteristics
thick with peptidoglycan and purple
gram negative characteristics
thin and pink with large and diverse # of cells
name the complex shape diagram form top to bottom
capsid (dna inside), collar, sheath, base, tail fibre, pin, tail core (dna out)
What is a zone of inhibition
bacteria growth area with unlimited food and space
what are the three zones of inhabitation
normal growth, inhibited growth, total inhabitation
what is normal growth in zones of inhibition
cloudy areas around the disk
what is inhibited growth in zones of inhibition
less cloudy areas around the disk