Diversity Unit Flashcards
Difference between common and fundamental characteristics
common characteristics do NOT define life
as they are also seen in many non-living things
8 fundamental characteristics (8)
- Cellular Organization
- Reproduction
- Metabolism
- Homeostasis
- Heredity
- Responsiveness
- Growth and Development
- Evolve and Adapt
Unicellular
entire organism is made up of ONE cell
Multicellular
entire organism is made up of MANY cells
Asexual Reproduction
Single parent organism reproduce by itself
Sexual Reproduction (2)
Two different parent organism
Consists of male and female sex cells
Why is biodiversity important
essential for sustaining all life of Earth
Why do we classify living things? (2)
to track evolution and determine ancestry
allows anyone in the world to discuss the same creature regardless of common name
Taxonomy
Linnaeus classifying organisms according to their structural similarities
Morphology
study of form and structure
Phylogeny
modern taxonomy groups based on their evolutionary relatedness
(relationship between all organisms on earth)
Order of classifying organisms (7)
Kingdom, Phylum, Class, Order, Family, Genus, Species
Binomial Nomenclature
gives an organism “scientific name” using genus and species
(genus and species italicized/bolded/underlined)
How to use dichotomous keys
out of the 2 given options, choose the one that matches the organism, continue to the step/organism name given after the ,
Construct dichotomous keys (3)
- divide organisms roughly in half for each step
- when down to 1 organism left instead of saying “go to step” list organism name
- there should be one less step than there are organisms (if 4 organisms, its 3 steps)
Bacteria: Capsule (location)
outer layer
Bacteria: Capsule (job) (2)
Increases ability to cause disease
allows it to adhere to surfaces
Bacteria: Cell Wall (location)
second layer
Bacteria: Cell Wall (job)
provide ridigy, strength support and protection
Bacteria: Nucleoid Region (location)
Scribbly things in cytoplasm
Bacteria: Nucleoid Region (job)
Contains DNA, proteins and RNA
Bacteria: Pili (location)
Hair like structures
Bacteria: Pili (job)
each one has its own function
Bacteria: Flagellum (location)
tail
Bacteria: Flagellum (job)
used for movement
Shapes and Names of Bacteria (6)
Sphere: Coccus
Oval: Coccobacillus
Curved Long: Vibrio
Straight Long: Bacillus
Coil: Spirillum
Spiral: Spirochete
Gram + cell wall?
Thick cell walls
Gram - cell wall?
Thin cell walls
Bacteria: Motility (3)
Pili
Flagella
Non-Mobile
