BIOL 1104 Lab Exam 2 Questions With Complete Answers || 100% pass

BIOL 1104 Lab Exam 2 Questions With Complete Answers || 100% pass .significance of 4 chambered heart - Answer-- oxygenated blood is separate from deoxygenated blood - improved efficiency of double circulation - required for warm blooded mammals and birds .diaphragm - Answer-- separated the thoracic cavity, containing the heart and lungs, from the abdominal century - important in respiration: as the diaphragm contracts, the volume of the thoracic cavity increases -- this created a negative pressure which draws air into the lungs .perch - Answer-- 2 heart chambers - no diaphragm - gills for respiration - no cloaca .frog - Answer-- 3 heart chambers - no diaphragm - skin and lungs for respiration - has a cloaca .pig - Answer-- 4 chamber heart - has a diaphragm - lungs for respiration - no cloaca .small intestine - Answer-digestion and absorption .lungs - Answer-gas exchange -O2 for blood circulation throughout (respiratory) .Diaphragm - Answer-muscles used for deep breathing - pulls down like a suction cup .swim bladder - Answer-allows fish to maintain buoyancy .pancreas - Answer-produces insulin and digestive enzymes .large intestine - Answer-prepares waste: reabsorbs water to prepare (gastrointestinal) (all three- again only fish have one intestine) .Gallbladder - Answer-to store bile (use to emulsify liquefy fat) .Gonad - Answer-to make gametes (male-sperm, female-egg) .kidney - Answer-filters blood and makes urine .spleen - Answer-filters foreign substances and makes red blood cells (circulatory) (all 3) .fat bodies - Answer-food storage during the winter (other) (frog) .Liver - Answer-detoxified blood and stores glucose .Colaca - Answer-opening that waste is excreted from - liquid and solid food waste as well as reproductive fluids (urogenital) (frog) .squamous tissue - Answer-lines lungs and blood vessels; decreases distance to facilitate diffusion; ex: Avioli .Avioli - Answer-in lungs, increase surface/Volume to enhance diffusion .cuboidal tissue - Answer-Cells appear to be cube-like in cross section, simple cuboidal epithelium lining a tubule - secretion and absorption: ex: Kidney tubules .columnar tissue - Answer-columnar epithelium of villi in digestive tract .villi - Answer-enhances surface area to volume for increased absorption in small intestine .Adipose tissue - Answer-Tissue that stores fat. .hyaline cartilage - Answer-support structure - first seen in class chondrichthyes (sharks) .bone - Answer-section of compact ground bone - bond id first seen in class Osteichthyes (bony fish)