Card Set Information
What are the small circular self replicating pieces of DNA found in bacteria?
Structure that allows prokaryotes to move
Part of a prokaryotes cell wall that enables it to adhere to their substrate or to other individuals in a colony
Their cell walls are typically composed of peptidoglycan, a network of polymers and short polypeptides
Type of prokaryote that eats cells, tissues, or fluids of another organism. Does not kill the organism directly, but sometimes indirectly.
When prokaryotes break down corpses, dead vegetation, and waste products.
Three most common shapes of this organism are spherical, rod-shaped, and spiral.
Cell walls contain polysaccharides and proteins but no peptidoglycan
Group of Eukaryotes that includes amoebas that have lobe or tube-shaped pseudopodia.
Supergroup of eukaryotes
- have an "excavated" groove on one side of the cell body
- includes diplomonads, parabasalids, and euglenozoans
Supergroup that includes parasites such as Giardia - causes diarrhea from drinking contaminated water.
Group of eukaryotes
- includes brown algae that form underwater kelp forests
- some are pathogens like plasmodium that causes malaria
Supergroup of eukaryotes
- consists of species of amoebas most of which have threadlike pseudopodia
- example Forams and Radiolarians
Group of eukaryotes
- red algae/ green algae, also includes land plants
- also forms seaweeds
Why did the domain monera become obsolete?
It has members in eukarya and archaea
Which organism is more closely related ones in the same class or the same family?
Bacteria, archaea, and eukarya are the three _____.
Which domain has:
- no nuclear envelope
- no membrane enclosed organelles
- no peptidoglycan in the cell walls
- introns present in some genes
Every organism has a unique two part name
- Genus, species
- Ex. Homo sapiens
An ecological interaction between prokaryote and a host in which both species benefits:
- points out common ancestors
- is developed using systematics
Dear King Phillip Comes Over For Good Spaghetti
Which domain contains all eukaryotes?
What other taxonomic categories must two organisms also belong two if they are in the same class?
Domain, Kingdom, Phylum
Includes members that are more closely related to plants, fungi, or animals than to other protists
Order from most general to most specific: Family, Species, Genus, Order
Order, Family, Genus, Species
A discipline focused on classifying organisms and determining their evolutionary relationships
Because eukarya and arcahaea diverge later from the common ancestor, this shows that:
They are more closely related.
- part of the three domain system
- includes: fungi and diatoms
Describe cell walls of Fungi
Similar to plant cell walls except contains Chitin (which is strong and flexible) nitrogen containing polysaccharide
Assigned to the phylum Glomeromycota, these fungi form arbuscular mycorrhizae, they are attached to about 90% of all plant species.
The globular fruiting body that forms multicellular branched hyphae
A phylum of fungi hyphae grow rapidly into foods, acting as either decomposers or parasites, other species live as neutral symbionts
- Also called club fungi
- Often important as decomposers; unusual in having a long-lived dikaryotic myceleum
Phylum of fungi
- called sac fungi or orange peel fungus
Common to many marine, fresh-water and terrestrial habitats; another phylum of fungus
Believed to be one of the earliest fungal groups to diverge from other fungi.
Supergroup that include key photosynthetic species that form the base of the food web in some aquatic communities
Cellstructures are extensions that bulge from any portion of the cell. They are used in movement and in the capture of prey.
Eukaryotes that are neither plants, animals, or fungi.
Which branch point includes protists most closely related to animals or fungi?
What is the key process that has caused the diversity of protists?
endosymbiosis and secondary endosymbiosis
Define the importance of endosymbiosis and the role it has played over time.
- has allowed for more complex organelles to evolve
- this is where mitochondria in cells is said to have evolved from
- cellular organisms engulf other cells
The less common fungal body structure is _____
Heterotrophs, but do not eat their food.
A symbiotic association between a photosyntheitc microorganism and a fungus in which millions of photosynthetic cells are held in a mass of fungal hyphae.
Most fungi propagate (reproduce) themselves by producing vast numbers of ____, either sexually or asexually.
The most common fungal body structures are ______.
Fungi use powerful ____ _____ to break down complex molecules into smaller organic compounds that the fungi can absorb into their bodies.
The morphology of this kingdom enhances their ability to grow into and absorb nutrients from their surroundings.
- Bodies have a network of tiny filaments called hyphae
What are 3 commercial roles of fungi?
cheese, yogurt, citric acid for soft drinks, yeast for bread, alcohol, medicine
Describe the roles of fungi in the ecosystems.
Decomposers - break down organic molecules and certain carbon, nitrogen, etc. to the soil for reuse.
Mutalists - make toxins in plants to herbivores processing host's digestion?
: parasites mostly in plants
Oxidize inorganic substances such as H2S, NH3, and Fe2+ to convert CO2 into organic compounds.
Use light energy to convert CO2 and CO3- into organic compounds
Prokaryotes that use oxygen for cellular respiration.
Prokaryotes that use O2 if present; however, can use anaerobic respiration or fermentation in its absence
Contain a complex membrane and wall. They contain less peptidoglycan and in addition to a cell wall they have an outer membrane of lipopolysaccharides.
Prokaryotes that are poisoned by oxygen. They either live by fermentation or anaerobic respiration.
Their cell walls contain large amounts of peptidoglycan and are relatively simple.
Consumes organic molecules
Harnesses energy from light, but utilizes organic compounds or raw materials