Usabo exam set Study guides, Class notes & Summaries

Eukaryote - Ans An organism whose cells contain complex structures enclosed within membranes. The defining membrane bound structure thats sets them apart from prokaryotic cells is the nucleas or nuclear envelope within which the genetic material is carried. All species of large complex species are eukaryotes, including animals, plants and funghi. Euchromatin - Ans This shows as pale areas in the nucleas under electro magnification. It is a less densly packed form of chromatin; 10% is even l...

insterstitial fluid - Ans fluid located between cells and among tissues cuboidal epithelium - Ans cube shaped epithelial cells that function in secretion, and are located in various endocrine glands simple columnar epithelium - Ans lines intestines, secretes digestive juices and absorbs nutrients, one cell thick pseudostratified ciliated columnar epithelium - Ans forms a mucous membrane in portions of the respiratory tract; contains cilia that move the film of mucous

Peroxisomes - Ans Organelles that are plentiful in liver cells and adipocytes, responsible for breaking down fatty acids and amino acids in to hydrogen peroxide (among other things) via the action of an enzyme known as catalayse. MItochondrian - Ans Sausage shaped organelles with a double membrane. The inner membrane folds in to cristae. This organelle plays a fundamental role in the production of ATP in eukarayote cells and they are abundant in cells which require high amounts of energy su...

vasoconstriction - Ans decreasing the diameter of blood vessels as to take it farther away from the surface of the body and cool it countercurrent exchange - Ans the flow of adjacent fluids in opposing directions that maximizes transfer rates of heat or solutes thermogenesis - Ans heat production non-shivering thermogenesis - Ans heat production without moving