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| *Which organ is most closely associated with the production of urea? | liver |
| *In humans, most of the worn out red blood cells are removed from the blood in the | liver |
| *In humans, nitrogenous waste excreted by humands is | urea |
| *In which organ does the blood lose urea and reabsorb amino acids? | kidney |
| *As air temperature decreases, the reate of perspiration usually | decreases |
| *The principal nitrogenous waste excreted by humans is.. | urea |
| *What organ excretes salts from its surface? | skin |
| *This organ produces urea and bile... | liver |
| *The functional units of this organ are known as alveoli... | lungs |
| *The functional unit of this organ is the nephron... | kidney |
| *An obstruction in a ureter would interfere with | urine entering the urinary bladder |
| *The reabsorption of materials into the capillaries surrounding the tubules of nephrons is an example of a ... | homeostatic mechanism |
| *Which excretory organ functions in the breakdown of red blood cells and in the production of urea? | liver |
| *In humans, carbon dioxide that is excreted passes from the blood directly into the | alveoli |
| *The correct pathway for the elimination of urine from the body is.. | kidneys, ureters, bladder, urethra |
| *Which organ stores glycogen? | liver |
| *Which organ produces urea? | liver |
| *Which organ maintains homeostasis by removing body heat, water and other wastes? | skin |
| *Which activity produces nitrogenous wastes? | protein metabolism |
| *Water is excreted from paramecia by means of | active transport |
| *A student observing a protozoan under a microscope notices that organism swelling rapidly. This increase is most likely due to the improper functioning of the... | contractile vacuole |
| *Which microscopic structures in the earthworm remove urea from the body? | nephridia |
| *The Malpighian tubules are most closely associated with excretion in the... | grasshopper |
| *Uric acid is normally the principal nitrogenous waste excreted by... | Malpighian tubules |
| *Which organism conserves water by utilizing its digestive tract in the removal of dry nitrogenous wastes? | grasshopper |
| *Nitrogenous wastes are removed from the blood of the earthworm thorugh the... | nephridia |
| *Nitrogenous waste products are produced from complete metabolism of... | protein |
| *Excretory structures present in protists include... | cell membranes and contractile vacuoles |
| *Hydra excrete most of their nitrogenous wastes in the form of... | ammonia |
| *An organism containing Malpighian tubules would most likely possess... | an open circulatory system |
| *Which organism excretes most of its nitrogenous waste as ammonia? | paramecium |
| *An earthwork uses its paired nephridia to | excrete water, urea, and mineral salts |
| *By which process do carbon dioxide molecules leave a plant and either the atmosphere? | diffusion |
| *The leaf structure closely associated with both transpiration and excretion are | stomates |
| *Carbon dioxide released from the interior cells of a grasshopper is transported to the atmosphere through the | tracheae |
| *A nitrogenous waste product resulting from the metabolism of protein molecules is... | ammonia |
| *Which organism produces uric acid as its principal nitrogenous waste product? | grasshopper |
| *Excretion is... | the removal of waste products produced within the organism as a result of metabolic activities |
| *The lungs get rid of... | carbon dioxide which diffuses from the capillaries into the alveoli and is removed during exhalation and water vapor which is removed by diffusion into the alveoli |
| *The liver disposes of.... | hemoglobin (destroys old red blood cells, release hemoglobin to convert to bile pigments and is eliminated in fecal material |
| *The liver also disposes of... | nitrogenous wastes by breaking down nitrogenous compounds to urea--the urea is absorbed into the blood and removed by the kidneys |
| *Sweat glands are... | small coiled, tubular glands found in the dermis of the skin, ducts leading to openings in the epidermis and cappilaries surround the base of each sweat gland |
| *The function of the sweat glands ... | excretes water, salts and some nitrogenous wastes diffuse from the capillaries into the sweat flands, excreted through the pores as sweat |
| *Sweat glands also assist in... | homeostasis by regulating body temperature |
| *The function of the kidneys is to... | excrete nitrogenous wastes, regulate most substances in the blood |
| *The functional unite of the kidney is the ... | nephron |
| *The nephron is made up of the... | glomerulus which is a network of capillaries, Bowman's capsule and a tubule that connects to a capsule and is surrounded by capillaries |
| *The nephron functions in... | filtering water, salts, urea, amino acids and glucose out of the blood (glomerulus) into the Bowmans's capsule |
| *The nephron also.... | reabsorbs some water, salts, amino acids(Protein), and glucose (sugar) into the capillaries surrounding the tubule |
| *The nephron also... | urine--fluid that remains at the end of the tubule |
| *The urinary bladder is... | tubules of kidneys empty into tube (ureter), urine is transported to urinary bladder and temporarily stored and periodically excreted though a tube (urethra) |
| *What are kidney stones? | accumulations of solid material that may block the kidneys, ureters or bladder |
| *What is nephritis? | infection of the kidney which may lead to kidney damage or failure |
| *What is gout? | a form of arthritis in which excess production of uric acid leads to deposits of crystals in the joints, causing pain and stiffness |
| *What is uremia? | accumulation of metabolic wastes in the blood due to a failure of the filtering action of the kidneys |
