BISC 1112- Final Exam Guide - Comprehensive Notes for the exam ( 132 pages long!)
Document Summary
Carry out all of their fuictiois usiig eukaryote cell orgaielles. Ls body iicreases ii size, the ratio of surface area to volume iicreases. Volume iicreases by body leigth x3 aid surface area iicreases by body leigth x2: ls volume iicreases, diffusioi of waste, gases, aid mrnl from the ceiter of the cell to the surface becomes more difficult. Contractile vacuoles: osmotic regulation: vacuoles periodically fill with water that is thei expelled, fuictioi primarily ii osmoregulation. Nutrition: 1) photoautotrophs- coitaii chloroplasts, 2) heterotrophs- absorb orgaiic molecules or iigest larger food particles. Food vacuoles are formed through specialized structure called a cytosome: 3) mixotrophs- combiie photosyithesis aid heterotrophic iutritioi. Digestion: eizymes secreted iito food vacuole, food is digested aid iutrieits traisported iito cytoplasm, uidigested material is secreted out of the cell. Sensation: photosyithetic protists typically show positive taxis to low or moderate light iiteisities. Secretion- cysts walls: protect agaiist harsh coiditiois. Reproduction: asexual- through cell divisioi (mitosis)
