Biology 1320 Lab 6: Homeostasis Questions With Correct Solutions, Already Passed!!

What are cells role in homeostasis? - Take nutrients from tissue fluid and return their waste molecules to it. surround the thin tissue membranes of the alveoli; site of gas exchange in blood. (Rich network of tiny blood vessels) - pulmonary capillaries A tendency to maintain a balanced or constant internal state - Homeostasis What is tissue fluids role in homeostasis? - Exchange molecules with blood movement of substances between blood and interstitial fluid - capillary exchange What is the primary thing lungs contribute to homeostasis? - Gas exchange organs through which an animal gets oxygen from the air. - Lung any of the many tiny air sacs of the lungs which allow for rapid gaseous exchange. - Alvioli What makes up the alveoli? - Single layer of squamous epithelium supported by mesh of fine elastic fibers Red blood cells - Erythrocytes Airways in the lungs that lead from the bronchi to the alveoli. - Bronchioles Is blood more acidic when carrying carbon dioxide? Explain - Yes CO2 reacts with water to form carbonic acidIs blood less acidic when the carbon dioxide exits? - Yes H+ are recombined to make H2CO3 What is the secondary thing lungs contribute to homeostasis? - Regulation of blood pH Produces bile - Liver Which love of the liver is bigger, left or right? - Right liver cells - hepatic cells the vein that collects blood from the liver and returns it to the heart - hepatic vein Blood vessel that transports O2- rich blood to the liver - branch of hepatic artery Blood vessel that transports blood containing nutrients from the intestine to the liver - branch of hepatic portal vein A tube that carries bile from the liver and gallbladder to the intestine - bile duct Primary way liver contributes to homeostasis? - Removal of toxic amino groups Secondary way the liver contributes to homeostasis. - Controls glucose in blood What helps glucose turn to glycogen? - Insulin after eating What turns glycogen to glucose? - Glucagon before eatingTakes blood from Aorta to the intestine - mesenteric artery Takes blood from liver to inferior vena cava - hepatic vein What blood vessel would contain the most glucose before eating? - Hepatic vein because it takes nutrients from the liver Which blood vessel would contain the most glucose after eating? - Hepatic portal vein because it takes sugars from the intestine to the liver Outer layer of kidney - Renal cortex inner portion of the kidney - renal medulla Central collecting region in the kidney - Renal pelvis Path of blood of a nepheron - Renal artery Afferent artiole Glomerulus Efferent artiole Peritubular capillary network Venule Renal vein What would happen to cells if the body lost all its nutrients by way of the kidneys? - Failure to thrive What molecule is reabsorbed the least by peritubular capillary? - UreaLies between intestine and liver - hepatic portal vein What would happen to blood volume and blood pressure if water were not reabsorbed? - Volume and blood pressure would decrease What substances are too large to leave the glomerulus? - Cells and protei