Shared Flashcard Set

Details

Final
GBIO 153
82
Biology
Undergraduate 1
05/12/2010

Additional Biology Flashcards

 


 

Cards

Term
Tube-like structures (cells) that transport water (xylem) and organic material (phloem)
Definition
Vascular tissue
Term
Contain xylem, phloem, and fibers
Definition
Vascular bundles
Term
Dominant generation of vascular plants
Definition
Sporophyte
Term
Resemble a whisk broom, No true leaves or roots, have rhizomes (horizontal underground stems), aerial stems with sporangia that carry on, Seedless vascular plant
Definition
Psilotophytes (Whisk fern)
Term
Most common seedless vascular plants, Found in mostly moist temperature regions, Fronds (leaves) that grow from horizontal stems (rhizomes), Needs water to reproduce, Leaflets have flagellated sperm
Definition
Pterophytes (Ferns)
Term
Begins with the 2n diploid sporophyte which yields sporangium which yields spores via meiosis which yields the n haploid gametophyte which yields sperm and egg which yields a zygote via fertilization which yields an embryo which yields a sporophyte, The gameophyte is usually not seen
Definition
Life cycle of Seedless vascular plants
Term
Develop from fiddleheads that uncurl when mature
Definition
Fronds
Term
Packets of sporangia found on the underside of a leaf
Definition
Sorus
Term
Seed Producing plants, 4 divisions: Cycads, Ginkos, Gnetophytes, and conifers
Definition
Gymnosperm
Term
Seed producing, cone-bearing desert plants
Definition
Gnetophytes
Term
Seed producing plants, Pines, firs, spruce, and cedars, Needle-like leaves, no flowers or fruit
Definition
Conifers
Term
Produced in clusters, pollen is the male gameophyte
Definition
Male pine cones
Term
Seed cone
Definition
Female pine cone
Term
Flowering plants, seeds enclosed in a fruit, many herbaceous (nonwoody: green and soft), some are perennial (living 2 years or more), others are annuals (living only 1 growing season)
Definition
Angiosperms
Term
Either herbaceous or woody, flower parts in 4s or 5s, net venation, vascular bundles arranged in a circular pattern in then stem, two cotyledons, kidney beans
Definition
Dicotyledons
Term
Almost all herbaceous, floral parts in 3s or multiples of 3s, parallel venation, scattered vascular bundles in the stem, one cotyledon (food storage area)
Definition
Monocotyledons
Term
Reproductive organ in angiosperms, consists of several layers of modified leaves attached to a modified stem tip (receptacle), sepals enclose and protect the flower before opening, petals attract pollinators
Definition
Flowers
Term
Male part of angiosperms that whorl around the pistil, consist of filament and an anther
Definition
Stamen
Term
Female part of angiosperms, consists of stigma, style, and ovary (becomes fruit) (contains ovules(becomes the seed))
Definition
Pistil
Term
The ovule consists of the megasporangium, the megasporocyte, and the integument, the megasporocyte gives rise to megaspores, one of which matures, the megaspore forms the megagameotophyte, the mature megagametophyte consists of antipodals, polar nuclei, and synergids
Definition
Female activities of angiosperms
Term
The anther contains pollen sacs, within the pollen sacs are microsporocytes, the microsporocytes give rise to microspores, the microspores mature into microgametophytes (pollen grains), inside of the pollen grain are sperm (nuclei) and a germ tube cell (forms the pollen tube)
Definition
Male activities of angiosperms
Term
Sperm and polar nuclei give rise to the endosperm (cotyledon), sperm and egg give rise to the embryo, results in a seed, a seed is a matured ovule
Definition
Double fertilization
Term
The ovary and sometimes other floral parts develop into this, a mature ovary that contains seeds, as it develops, the ovary wall thickens, becoming the pericarp
Definition
Fruit
Term
Derived from a single ovary (peaches and plums)
Definition
Simple fruits
Term
Develop from several individual ovaries (either from the same flower or sometimes several flowers) (blackberries: aggregate fruit, pineapples: ovaries of different flowers fuse to form a multiple fruit)
Definition
Compound fruits
Term
Forms the outer protective covering of a plant
Definition
Epidermal tissue
Term
Fills the interior of a plant
Definition
Ground tissue
Term
Transport water and minerals and organic nutrients and provides support
Definition
Vascular tissue
Term
Stem and branches; supports the leaves and transports water and organic nutrients throughout plant
Definition
Shoot system
Term
Used to be classified in the plant kingdom because they are nonmotile and have cell walls, cell wall is made of chitin, mitosis and meiosis are rather primitive in that many times the nuclear membrane remains and spindle fibers form within the nucleus, heterotrophic, mulicelluar, nonmotile, parasitic, used to make wine, cheese, and bread, edible, grow anywhere that is warm, moist, and has organic nutrients available
Definition
Fungi
Term
Decomposers that are ecologically important in recycling nutrients
Definition
Saprophitic
Term
Secrete digestive enzymes into their environment, nutrient source is digested and then molecules are absorbed, made up of fine, branching, usually colorless threads, many be septate or nonseptate, may be multinucleated with no cross walls
Definition
Hyphae
Term
Each fungus will have vast numbers of hyphae, they intertwine to make up a tangled web, mostly hidden from human view, usually hidden deep within its food sources, remains undetected until it develops one or more fruiting bodies, containing the reproductive spores
Definition
Mycelium
Term
Nonseptate, usually reproduce asexually by forming spores in sporangia, may reproduce sexually by forming zygosporangium, produceds zygospores in zygosporangium
Definition
Zygomycetes
Term
A Zygomycete with aerial hyphae topped with black dots (sporangia), stolons: horizontal hyphae, rhizoids (root-like structures), Reproduction involves hyphae producing gametes that are separated from the rest of the hypha by a crosswall, gametes from two nearby hyphae fuse and produce a thick-walled zygospore that protects it during a period of dormancy, after dormancy, meiosis occurs and short hyphae grwo from the zygospore, the hyphae produce sporangia, which produce spores by asexual reproduction (mitosis)
Definition
Rhizopus (bread mold)
Term
Sporangia produce _____ spores
Definition
1N
Term
Zygosporangium _______ : meiosis -> _______ spores
Definition
2N, 1N
Term
Cap throwers grow on horse or cattle dung
Definition
Pilobolus
Term
Sac fungi, septate hyphae, 2 groups: sexual and asexual, produce ascospores in asci
Definition
Ascomycetes
Term
not produced in sporangia like most other asexual spores, develop at the tips of specialized hyphae (ringworm, athlete's foot, jock itch)
Definition
Asexual condidiospores
Term
Involves the production of conidiospores
Definition
Asexual reproduction of ascomycetes
Term
An Ascomycete that is black mold, sick building disease, produces a toxin that is harmful to humans who are exposed, flulike symptoms, fatigue, dermatitis, compromise the immune system
Definition
Stachybotrys
Term
An Ascomycete that is single celled, round or oval, asexual reproduction by budding, Candida which leads to oral thrush (yeast infection of the mouth), Infants: anttibiotics, mother's birth canal infected, decreased immune function, Adult thrush: immunocompromised, smokers, Vaginal infections: discharge, odor, irritation, itching
Definition
Yeasts
Term
An Ascomycete, fermentation: bread, wine, beer (bakers or brewers yeast), ferments sugars present in the flour or added to the dough, giving off CO2 and ethanol. CO2 is trapped as tiny bubbles in the dough, which rises
Definition
Saccharomyces
Term
An Ascomycete, produces penicillin which kills bacteria by disrupting cell wall synthesis, produces condiaspores, cheese such as Roquefort, Brie, Camembert, Stilton are ripened with species and are safe to eat, sexual reproduction by asci
Definition
Penicillium
Term
Powdery mildews grow on leaves on fruit, whitish/gray color that spreads quickly, may be more severe when N2 levels are low in the soil
Definition
Plant diseases
Term
Produces spores on top of fruiting body, asci with spores
Definition
Cup fungi
Term
Some are edible (gourmet), asci with spores
Definition
Truffles
Term
Parasitize cereal crops such as wheat, corn, oats, and rye, economic important: destroy crops, parasitic sac fungus that infects rye, replaces the grain with hard, purple-black bodies make of hyphae, during bread making, the rye is ground and the fungus releases toxic chemicals that cause vomiting, muscle pain and lesions on hands and feet, hallucinations and hysteria, contains lysergic acid from which LSD is made, may have been invoved in the Salem witch trials
Definition
Ergot Fungus
Term
Mutually beneficial symbiotic relationship between fungi and algae or cyanobacteria (foliose: leafy looking, crustose, and fruticose: tiny shrub)
Definition
Lichens
Term
Club fungi, mushrooms, bracket fungi, puffballs (basidiocarps), Produce basidiospores in basidia
Definition
Basidiomycetes
Term
Dikaryotic mycelium
Definition
2 haploid nuclei
Term
A Basidiomycete, very tough and leathery or woody fruiting bodies, often plate-like and most grow out of tree trunks or rotting wood, some produce a new fruiting body every year, while others produce one which continues to grow year after year
Definition
Polypores (Bracket fungi)
Term
The fruiting body is an irregular ball, covered with rough scales and attached to the soil by a thick mycelial strand, Interior of the ball is filled with a dark, powdery spore mass, The spores are liberated by the ball breaking open irregularly as it matures
Definition
Earth balls
Term
Fungal mycelia tend to grow in more or less circular shapes. this is because they grow by spreading out in all directions from a central point, the central point represents the loaction of the original spre which germinated to start the fungal mycelium, the mycelium will usually produce fruiting bodies on its outer edge. as a result, the fruiting bodies of fungi living hidden in the soil can sometimes be found
Definition
Fairy rings
Term
Multicellular, aerobic and heterotrophic, most are motile at some stage of the life cycle, sexual reproduction (some reproduce asexually as well), diplontic life cycle (diploid), gametes are heterogametes (different sizes), eggs are larger than sperm, gametes are produced by meiosis
Definition
Kingdom Animalia
Term
A fertilized animal egg divides to produce a solid ball of cells, cell migration results in a hollo ball
Definition
Blastula
Term
Some cells of the blastual migrate inward producing
Definition
Gastrula
Term
The opening in a gastrula
Definition
Blastopore
Term
The tube produced by the embryonic development (blastula -> gastrula) will become the _______ of the mature animal
Definition
Gut (digestive tract)
Term
In species that have a separate mouth and anus, the tube will eventually extend through the length of the embryo and fuse with the opposite side, one opening will become the mouth and the other will become the anus
Definition
Digestive tract development
Term
Sac-like gut with a gastrovascular cavity
Definition
Incomplete digestive tract
Term
Complete gut with two openings
Definition
Complete digestive tract
Term
Have stages of embryonic development where mitotic cell divisions in embryos form primary tissue layer, 3 layers of tissues that arise during early embryonic development are
Definition
Germ layers
Term
Germ layers that give rise to body tissues
Definition
Ectoderm, mesoderm, and endoderm
Term
Lining of the digestive tract
Definition
Endoderm
Term
Nervous system and skin
Definition
Ectoderm
Term
Gives rise to muscle, internal organs, and connective tissue
Definition
Mesoderm
Term
Composed of cells that function together in a specialized activity , 4 types: epithelial, connective, nerve, and muscle
Definition
Tissue
Term
Composed of two or more tissues which function together to perform a common task
Definition
Organs
Term
Consists of two or more organs which perform a specific task (integument, nervous, sensory)
Definition
Organ systems
Term
The body parts are arranged around a central axis so that each part extends from the center, the animal can be cut along the axis in more than one plane to produce identical halves, tend to be sessile organisms (immobile)
Definition
Radial symmetry
Term
Only one cut along the longitudinal axis will produce identical halves, best for motile animals
Definition
Bilateral symmetry
Term
No pattern of symmetry, the simplest animals (sponges)
Definition
Asymmetry
Term
A space that separates the gut and internal organs from the rest of the body, it isolates the internal organs from body-wall movements, it also bathes the internal organs in a liquid through which nutrients and wastes can diffues
Definition
Body cavity (coelom)
Term
Does not have a body cavity
Definition
Acoelomate animal
Term
Has a body cavity located between the endoderm and mesoderm
Definition
Pseudocoelomate animal
Term
Body cavity located within the mesoderm
Definition
Coelomate animal
Term
The blastospore is associated with the mouth
Definition
Protostomes
Term
Blastopore associated with the anus
Definition
Deuterostomes
Term
Have interconnected repeating units, leads to specialization of body parts, can become differentia for specific purposes and have different parts and appendages attached to them
Definition
Segmentation
Term
A concentration of nerve and sensory cells in the head, accompanied the evolution of bilateral symmetry
Definition
Cephalization
Supporting users have an ad free experience!