bio lab exam Word Scramble
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Question | Answer |
epidermis | the outer layer of the kin, is compsed of epithelial tissue |
dermis | is the connective tissue layer that is firmly attached to teh epidermis by a basmenet membrane, provides the avascular epidermis with nutrientsan connects the epidermis to teh underlying hypodermis |
hypodermis | is located below the skin and is usually discussed with the skin |
kertainocytes | the most numerous of the epidermal cells; produces kertain |
melanocytes | a pigmented cell, loacted between or benath cells of the deepest layer of the epidermis, that synthesizes melanin |
Langerhans cells | are immune system cells that attack pathogesns that enter the skin |
Markel cells | are the least abdundant cell type and are found only in the deepest layer of the epidermis |
stratum basale | a single row of cells attached to the basement membrane, contains stem cells that divide to form nre kertaincoytes |
stratum spinosum | contains 8 to 10 rows of cells, mainly kertainocytes |
stratum granulosum | conatins 3 to 5 rows of flattened kertainoyctes that are beggining to die |
stratum lucidum | conatins 3 to 5 rows of flat, dead keratinocytes |
stratum corneum | is a very thick layer conatining 25 to 30 or more rows of dead, squamous-shaped kertainoyctes |
prokaryotes | no nucleus, single cell, own dna |
eukaryotes | nucleus, has a membrane-bound strcutre called cytoplasm, |
Gram Stain | differentiates between two bacteria groups |
Gram Positive Satin | retrain the stain, the stain is purple in color |
Gram Negative Stain | can be harmful more disease causing, doesn't retrain the stain, red in color |
Fungi | eukaryotic organism occuring as a single cell (yeast) or a long, branching filament (mold) |
Strepto | a genus of gram-positive cocci that are anaerobic, non-motile and non-sporeformers. Arranged into four groups, one of which includes the beta-hemoltic pathogenic species |
eukaryote | an organism whose cells have a true nucleus enveloped by a nuclear membrane |
prokaryote | an organsim whose cells lack a true nucleus |
Bacteria forms/shapes | rod form, spherical form, spiral form |
rod form | is called bacillus |
rod form come in four different forms | rectangular, club, swollen, chain |
spherical form comes in five different fomrs | chain, packet, cluster, diplococcus 1, diplococcus 2 |
spiral form comes in three differetn forms | single spiral , corkscrew and flagellum, corkscrew/ no flagellum |
spherical form | is called coccus |
spiral form | is called spiral |
Gram Stain | is often the first step in identifying a bacterium |
Gram-Positive bacteria | are genreally susceptible to certain antibiotics such as penicillin |
Gram-Negavtive bacteria | are killed by other antibiotics |
stratum lucidum | layer is translucent in specimens of fresh skin |
Created by:
Courtneey
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