2nd vocab quiz Flashcards
Alga
A general term for any species of photosynthetic protist, including both unicellular and multicellular forms.
Amphibian
Member of the tetrapod class Amphibia, including salamanders, frogs and caecillians
Angiosperm
a flowering plant, which forms seeds inside a protective chamber called an ovary
Bilateral Symmetry
Body symmetry in which a central longitude plane divides the body into two equal but opposite halves
Binary Fission
A method of asexual reproduction in single celled organisms in which the cell grows to roughly double its size and then divides into two cells.
Budding
unicellular yeast bud off new cells
Cellulose
A structural polysaccharide of plant cell walls, consisting of glucose monomers joined by B glycosydic linkages
Chemoautotroph
obtain energy from minerals
Chemoheterotroph
?
Chitin
a structural polysacchuride, consisting of amino sugars monomers, founds in many fungal cell walls and in the exoskeletons of all arthropods
Extremeophile
AN organism that lives in environmental conditions so extreme that few other species can survive there.
Extreme Halophile
an organism that lives in a highly salty environment
Extreme Thermophile
An organism that lives in hot environments
Facultative Anaerobe
An organism that makes ATP by aerobic respiration if oxygen is present but that switches to anaerobic respiration or fermentation if oxygen is not present.
Flower
In an angiosperm, a specialized shoot with up to four sets of modified leaves, bearing structures that function in sexual reproduction
Fragmentation
a means of asexual reproduction whereby a single parent breaks into parts that regenerate into whole new individuals
Gram-Negative
Describing the group of bacteria that have a cell wall that is structurally more complex and contains less peptidoglycan than the cell wall of gram-positive bacteria.
Gram-Positive
Describing the group of bacteria that have a cell wall that is structurally less complex and contains more peptidoglycan than the cell wall of gram-negative bacteria.
Gymnosperm
a vascular plant that bears naked seed (not enclosed in protective chambers
Leaf
the main photosynthetic organ of vascular plants
Mammal
member of the class mammalia, amniotes that have hair and mammary glands
Methanogen
an organism that produces methane as a waste of product of the way it obtains energy. All known methanogens are in domain Archaea
Mutualism
a +/+ ecological interaction that benefits each of there interacting species
Obligate Aerobe
must have oxygen
Obligate Anaerobe
cannot live in presence of oxygen, it will kill them
parasite
an organism that feeds on the cell contents, tissues, or body fluids of another species while in or one the host organism. Parasites harm but usually do not kill their hosts
Phloem
vascular plant tissue consisting of living cells arranged into elongated tubes that transport sugar and other organic nutrients throughout the plant
Photoautotroph
Obtain energy thru sunlight
Protozoan
animal like protists
Peptidoglycan
a type of polymer in bacterial cell walls consisting of modified sugars cross linked by short polypeptides
Radial Symmetry
symmetry in which the body is shaped like a pie or barrel and can be divided into mirror imaged halves by any plane thru a central axis
Reptile
member of the clade of amniotes that includes lizards, snakes, turtles, crocodillians, and birds
Root
an organ in vascular plants that anchors the plant and enables it to absorb water and minerals from the soil
Seed
an adaptation of some terrestrial plants of an embryo packaged along with a store of food within a protective coat
Seedless vascular plant
.an informal name for a plant that has vascular tissue but lacks seeds. Seedless vascular plants for a paraphyletic group that indicates the phyla Lycophyta and monilophylia
Stem
a vascular plant organ consisting of an alternating system of nodes and internodes that support the leaves and reproductive system
Vascular plant
.a plant with vascular tissue. Vascular plants include all living plant species except liverworts, mosses, and hornworts
Xylem
.vascular tissue consisting of tubular dead cells that conduct most of the water and minerals upward from the roots to the rest of the plant
