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Test your basic knowledge |
PCAT Biology Excretion
Start Test
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Subjects
:
pcat
,
biology
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Produced by the deamination of amino acids in the liver and diffuses into the blood for ultimate excretion in the kidneys
Concentration of Urine 2
Transpiration
Lenticels
Urea
2. Exit of water vapor through leaf stomates
Transpiration
Nephron
Peritubular Capillary
Concentrated Urine
3. Two pairs of nephridia in each body segment excret water - mineral salts - and nitrogenous wastes in the form of urea
Acid Base Disorders (Metabolic)
Body Fluid pH
Spiracles
Excretion in Annelids
4. Carbon dioxide is released from the tissues into adjacent tracheae through spiracles
Units of Bowman's capsule
Filtrate
Kidneys
Excretion in Arthropods
5. An organelle specialized for water excretion by active transport
Spiracles
Vacuole
Transpiration
Kidney Structure
6. Urine collects until it is expelled via the urethra
Secretion
Urinary Bladder
Spiracles
Units of Bowman's capsule
7. Tubelike things which are continuous with the external air
Concentration Of Urine 5
Tracheae
Bowman's capsule
Perspiration
8. Function to maintain the osmolarity of the blood -excrete numerous waste products and toxic chemicals -conserve glucose - salt - and water
Kidneys
Organs of Excretion in Humans
Units of Bowman's capsule
Passive Excretion in Protozoans and Cnidarians
9. Nitrogenous wastes of arthropods
Concentration of Urine 2
Filtrate
Uric Acid
Concentrated Urine
10. Serves to regulate body temperature - since the evaporation of sweat produces cooling
Vacuole
ADH
Nephron
Perspiration
11. Surrounds nephron to facilitate reabsorption of amino acids - glucose - salts - and water
Lenticels
Peritubular Capillary
Ureter
Excretion in Arthropods
12. Consists the Bowman's capsule - which embraces the glomerulus
Peritubular Capillary
Nephron
Kidney Structure
Nephron Function
13. Lungs - liver - skin - and kidneys
Perspiration
Organs of Excretion in Humans
Spiracles
Excretion in Annelids
14. Pores in stems
Urea
Lenticels
Excretion in Arthropods
Concentrated Urine
15. Clean the blood plasma of unwanted substances as it passes throught he kidney
Concentrated Urine
Vacuole
Secretion
Primary Function of Nephron
16. Openings of tracheae
Urea
Spiracles
Tracheae
Reabsorption
17. Essential substances and water are reabsorbed from the filtrate and returned to the blood -occurs primarily in the proximal convuluted tubule and is an active process
Reabsorption
Concentration of Urine 3
Perspiration
Nephron
18. Processes nitrogenous wastes - blood pigment wastes - and other chemicals for excretion
Malphigian Tubules
Elimination
Liver
Kidney Structure
19. Affect the blood acidity by causing changes in the PCO2
Excretion
Excretion in Arthropods
Elimination
Acid Base disorders (Respiratory)
20. The reabsorption of water in this zone of the kidney - which permits the concentration of urine - dpeends on the permeability of the collecting tubules to water
Lenticels
Filtrate
Concentration of Urine 4
Acid Base disorders (Respiratory)
21. Anatomic arrangement of permits the reabsorption of ((% of the filtrate in the collecting tubules -makes the production of concentrated urine possible
Transpiration
Counter-Current-Multiplier System
Primary Function of Nephron
Acid Base Disorders (Metabolic)
22. Carbon dioxide and water vapor diffuse from the blood and are continually exhaled
Deamination
Bowman's capsule
Lungs
Acid Base Disorders (Metabolic)
23. Affect the blood acidity by causing changes in the HCO3-
Uric Acid
Acid Base Disorders (Metabolic)
Spiracles
Urea
24. Leads to the production of carbon dioxide and water
Organs of Excretion in Humans
Excretion in Annelids
ADH
Aerobic Respiration
25. Excrete water and dissolved salts
Concentrated Urine
Sweat glands
Urinary Bladder
Uric Acid
26. As the filtrate flowing in the collecting tubules passes through this region of the kidney - on its way to the pelvis and ureter - water flows out of the collecting tubules by osmosis
Concentration of Urine 2
Vacuole
Acid Base Disorders (Metabolic)
Concentrated Urine
27. Increases the permeability of the collecting duct to water - allowing more water to be absorbed and more concentrated urine to be formed
Excretion in Plants
ADH
Urinary Bladder
Organs of Excretion in Humans
28. The fluid and small solutes entering the nephron -isotonic with blood plasm
Secretion
Peritubular Capillary
Concentrated Urine
Filtrate
29. Counter-current system causes the medium in the medulla of the kidney to be hyperosmolar with respect to the dilute filtrate flowing in the collecting tubule
Secretion
Concentration of Urine
ADH
Peritubular Capillary
30. Passive process where Blood pressure forces 20% of the blood plasma entering the glomerulus through the capillary walls and into the surrounding Bowman's capsule
Liver
Deamination
ADH
Filtration
31. The removal of metabolic wastes produced in the body
Filtrate
Excretion
Glomerulus
Lenticels
32. Regulate the concentration of salt and water in the blood through the formation and excretion of urine
Liver
Kidney Main Function
Perspiration
Concentration of Urine 3
33. Concentrated urine in the collecting tubules flows into the pelvis of the kidney - a funnel-like region that opens directly into this
Excretion
Ureter
Urine Formation
Concentration of Urine
34. Bulb of nephro -leads into a long - coiled tubule tht is divided into functionally distinct units
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35. Water-solube wstes - such as ammonia and carbon dioxide - can exit the cells by simple diffusion through the cell membrane
Malphigian Tubules
Passive Excretion in Protozoans and Cnidarians
Filtration
Concentration of Urine
36. Pores in leaves
Alodsterone
Lungs
Stomata
Osmolarity Gradient
37. Capillary bed embraced by Bowman's capsule
ADH
Glomerulus
Nephron Function
Acid Base Disorders (Metabolic)
38. Proximal convoluted tubule - the loop of Henle - the distal convoluted tubule - and the collecting duct
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39. Remains relatively constant at 7.4
Nephron Function
Secretion
Reabsorption
Body Fluid pH
40. Through the selective permeability of its walls and the maintenance of an osmolarity gradient - the nephron reabsorbs nutrienets - salts - and water from the filtrate and returns them to the body - thus maintaining the bloodstream's solute concentrat
Sweat glands
Urine Formation
Kidneys
Nephron Function
41. Divded into three regions: outer cortex - inner medulla - renal pelvis
Primary Function of Nephron
Acid Base disorders (Respiratory)
Ureter
Kidney Structure
42. Created when exiting and reentering at different segments of the nephron - with tissue osmolarity increasing from cortex to inner medulla
Secretion
Concentration of Urine
Concentration of Urine 2
Osmolarity Gradient
43. In the liver - leads to the production of nitrogenous wastes such as urea and ammonia
Deamination
Bowman's capsule
Malphigian Tubules
Excretion in Plants
44. Filtration - secretion - and reabsorption are the three process
Spiracles
Uric Acid
Urine Formation
Kidney Structure
45. No specific excretory system in plants -any excess CO2 - O2 - and H2O vapor - leaves the lant by diffusion through stomata and lenticels
Excretion in Plants
Urea
Urinary Bladder
Glomerulus
46. The removal of indigestible material
ADH
Counter-Current-Multiplier System
Elimination
Spiracles
47. Nephron secretes substances such as acids - bases - and ions like potassium and phosphate from the interstitial fluid into the filtrate by both passive and active transport
Primary Function of Nephron
Kidney Structure
Secretion
Lenticels
48. Hypertonic to the blood
Filtration
Urinary Bladder
Concentrated Urine
Passive Excretion in Protozoans and Cnidarians
49. A hormone that causes an increased exchange transport of sodium and potassium ions along the distal convoluted tubule - the collecting tubule - and the collecting duct - resulting in a decreased excretion of sodium ions in the urine and an increased
Filtration
Urea
ADH
Alodsterone
50. Regulation of the permeability of the collecting tubule to water is accomplished by the hormone ADH (vasopressin)
Concentration Of Urine 5
Vacuole
Tracheae
Liver
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