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SI Test 3 Material
SI Marathon
73
Biology
Undergraduate 1
04/07/2010

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Term
Anaerobic
Definition
The first organisms on earth had this type of respiration.
Term
RNA
Definition
This was thought to be the first genetic material.
Term
Photosynthesis
Definition
2.7 BYA, the amount of oxygen was increased in the atmosphere. What process created this oxygen?
Term
Cellular Respiration/Aerobic Respiration
Definition
2.7 BYA, the amount of oxygen was increased in the atmosphere. What type of metabolism was able to evolve because of this?
Term
Prokaryotes
Definition
Arising around 3.5 BYA, these were the first cells. They can be found in rock layers called stromatolites.
Term
Endosymbiosis theory
Definition
This is the theory of how mitochondria and chloroplasts evolved in eukaryotic cells.
Term
Cambrian Explosion
Definition
This event happened about 535 MYA and it greatly increased the diversity of animals.
Term
CO2, NH3, H2O (vapor), H2, CH4
Definition
Name two compounds that were thought to make up the Earth's early atmosphere.
Term
Cocci
Definition
[image]
Term
Bacillus
Definition
[image]
Term
Peptidoglycan
Definition
Bacterial cell walls are made up of this polysaccharide/protein matrix.
Term
Sex pili
Definition
Bacterial conjugation occurs via this structure
Term
Fimbrae
Definition
These structures are used for bacterial attachment to a substrate.
Term
Flagella
Definition
This bacterial structure is used for taxis (movement)
Term
Gram +
Definition
This type of bacteria has a thick peptidoglycan cell wall
Term
Gram -
Definition
This type of bacteria has a thin peptidoglycan cell wall and an outer lipopolysaccharide layer.
Term
Plasmid
Definition
Some bacteria carry extra DNA in a small circle called this.
Term
Endospore
Definition
When environmental factors become unfavorable for bacteria, they can form this structure that allows them to become dormant until conditions become favorable.
Term
Transformation
Definition
Bacterial genetic recombination by picking up DNA from the environment.
Term
Transduction
Definition
Bacterial genetic recombination through a bacteriophage.
Term
Conjugation
Definition
Bacterial genetic recombination using a sex pili
Term
Binary Fission
Definition
Bacterial reproduction.
Term
R plasmids
Definition
Extra DNA that bacteria may carry that carry genes for antibiotic resistance.
Term
Photoautotroph
Definition
A mode of nutrition where organisms obtain energy from light and carbon from CO2.
Term
Chemoautotroph
Definition
A mode of nutrition where organisms obtain energy from inorganic compounds and carbon from CO2.
Term
Photoheterotroph
Definition
A mode of nutrition where organisms obtain energy from light and carbon from organic compounds.
Term
Chemoheterotroph
Definition
A mode of nutrition where organisms obtain energy and carbon from organic compounds.
Term
Obligate anaerobes
Definition
Organisms that cannot survive in the presence of oxygen.
Term
Obligate aerobes
Definition
Organisms that require oxygen in order to survive.
Term
Facultative anaerobes
Definition
Organisms that can survive either with or without oxygen.
Term
Prokaryotes, no membrane bound organelles.
Definition
Write 1 similarity between Archae and Bacteria.
Term
Halophile
Definition
The type of archae that live in environments with a high salt content.
Term
Thermophile
Definition
Archae that live in the Yellowstone geysers.
Term
Methanogens
Definition
Type of archae that live in cows guts and creates a bad smell.
Term
Rhizobium
Definition
This species of bacteria forms root nodules around legume roots and fix nitrogen into a usable form for the plant.
Term
Cyanobacteria
Definition
First photoautotrophic bacteria.
Term
Actinomycetes, Staphylococcus, Streptococcus, Bacillus antracis, Clostridium tetanus, Mycoplasms
Definition
Write 1 specific example of a gram positive bacteria.
Term
Spirochetes
Definition
This group of bacteria is classified by a helical shape. Some examples are Treponema pallidium (Syphilis) and Borrelia (Lyme disease)
Term
Mutualism
Definition
Symbiotic relationship: Rhizobium and legumes
Term
Commensalism
Definition
Symbiotic relationship: Clown fish and sea anemone.
Term
Parasitism
Definition
Symbiotic relationship: any pathogen
Term
Euglenozoans
Definition
Photosynthetic protist group. Ex. Trypanosoma (sleeping sickness)
Term
Diplomonads
Definition
What protist group is Giardia a member of?
Term
Diplomonad, Parabasalid
Definition
Name 1 group of protists that have modified mitochondria.
Term
Dinoflagellates
Definition
Protists that cause Red tide (Pfiestria) and some can biolumenesce.
Term
Plamodium
Definition
The Apicomplexan that causes malaria.
Term
Ciliates
Definition
Protist group that move via cilia.
Term
Diatoms
Definition
Protist group that has silica in their cell walls.
Term
Golden Algae
Definition
Protist group that can be single-cellular or colonial and contain yellow-brown carotenoids.
Term
Brown Algae
Definition
Protist group that makes up the kelp forests.
Term
Oomycetes
Definition
Fungus-like protist group responsible for the potato famine.
Term
Alternation of generations
Definition
Life cycle strategy that involves a haploid and a diploid generation.
Term
Foraminiferans/Forams
Definition
Protist group that has calcium carbonate tests and moves via pseudopodia.
Term
Radiolarians
Definition
Group of protists that have fused tests made of silica.
Term
Phycoerythrin
Definition
Accessory pigment giving Red algae it's color.
Term
Plasmodial Slime Mold
Definition
Multinucleated single celled protist.
Term
Cellular Slime Mold
Definition
Unicellular protists that have a mobile slug-like structure in preparation for reproduction.
Term
Cellulose cell walls
Definition
What does green algae, dinoflagellates, and brown algae have in common?
Term
Charophtes
Definition
Which group of green algae is most related to land plants?
Term
Sporopollenin
Definition
Layer of polymer that protects spores from drying out.
Term
Drying out, Gravity/support, Reproduction strategies
Definition
Name one challenge plants had in their movement to land.
Term
archegonia
Definition
Female gametophyte
Term
Antheridia
Definition
Male gametophyte
Term
Apical meristem
Definition
Site of cell division and growth on plants (one for root and one for shoot).
Term
Cuticle
Definition
Plant adaptation that prevented water loss from leaves by forming this waxy covering.
Term
Gametophyte
Definition
Bryophyte lifecycles have a dominant __________ generation.
Term
Sporophyte
Definition
Fertilization of male and female gametes produces a baby ____________.
Term
Diploid (2N)
Definition
Ploidy level of sporangia
Term
Homosporous
Definition
What is it called when a plant life cycle contains one type of spore that produces a bisexual gametophyte?
Term
Sporophyll
Definition
Modified leaves containing sporangia.
Term
Tracheids
Definition
What is the name for the dead xylem cells in plant vascular tissue?
Term
Female gametophyte (archegonia)
Definition
Megaspores form the ______________
Term
Micropyle
Definition
Pollen cells fertilize the egg through this structure.
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