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Test your basic knowledge |
PCAT Biology Excretion
Start Test
Study First
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. Bulb of nephro -leads into a long - coiled tubule tht is divided into functionally distinct units
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2. Lungs - liver - skin - and kidneys
Nephron
Malphigian Tubules
Excretion
Organs of Excretion in Humans
3. Clean the blood plasma of unwanted substances as it passes throught he kidney
Body Fluid pH
Concentration of Urine 3
Reabsorption
Primary Function of Nephron
4. Proximal convoluted tubule - the loop of Henle - the distal convoluted tubule - and the collecting duct
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5. Nitrogenous wastes of arthropods
Concentration Of Urine 5
Urea
Uric Acid
Peritubular Capillary
6. Carbon dioxide is released from the tissues into adjacent tracheae through spiracles
Excretion in Arthropods
Liver
Nephron
Perspiration
7. Water is removed by capillaries flowing in the medulla
Nephron
Urine Formation
Concentration of Urine 3
Kidney Main Function
8. Regulate the concentration of salt and water in the blood through the formation and excretion of urine
Excretion in Annelids
Kidney Main Function
Filtrate
Excretion
9. An organelle specialized for water excretion by active transport
Vacuole
Elimination
Concentration of Urine 4
Stomata
10. Accumulates mineral salts and uric acid in arthropods then transported to the intestine to be expelled with the solid wastes of digestion
Filtrate
Concentration of Urine 3
Malphigian Tubules
ADH
11. Hypertonic to the blood
Concentrated Urine
Glomerulus
Filtration
Kidney Structure
12. Pores in leaves
Secretion
Excretion in Annelids
Stomata
Ureter
13. Affect the blood acidity by causing changes in the PCO2
Concentration Of Urine 5
Kidney Main Function
Tracheae
Acid Base disorders (Respiratory)
14. Filtration - secretion - and reabsorption are the three process
Urine Formation
Acid Base disorders (Respiratory)
Alodsterone
Vacuole
15. 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
Primary Function of Nephron
Urea
Secretion
16. Carbon dioxide and water vapor diffuse from the blood and are continually exhaled
Lenticels
Excretion in Arthropods
Urinary Bladder
Lungs
17. The removal of indigestible material
Elimination
Concentration of Urine
Concentration Of Urine 5
Primary Function of Nephron
18. Function to maintain the osmolarity of the blood -excrete numerous waste products and toxic chemicals -conserve glucose - salt - and water
Kidneys
Urea
Spiracles
Kidney Structure
19. 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
Primary Function of Nephron
Urea
Concentration of Urine
Bowman's capsule
20. Capillary bed embraced by Bowman's capsule
Glomerulus
Acid Base Disorders (Metabolic)
Transpiration
Passive Excretion in Protozoans and Cnidarians
21. Increases the permeability of the collecting duct to water - allowing more water to be absorbed and more concentrated urine to be formed
ADH
Primary Function of Nephron
Body Fluid pH
Tracheae
22. 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
Concentration of Urine 4
Nephron
Vacuole
Glomerulus
23. Divded into three regions: outer cortex - inner medulla - renal pelvis
Excretion in Plants
Lungs
Spiracles
Kidney Structure
24. 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
Reabsorption
Secretion
Acid Base Disorders (Metabolic)
Urea
25. 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
Filtration
Kidney Main Function
Uric Acid
Malphigian Tubules
26. Created when exiting and reentering at different segments of the nephron - with tissue osmolarity increasing from cortex to inner medulla
Osmolarity Gradient
Concentration of Urine 4
Sweat glands
Counter-Current-Multiplier System
27. Remains relatively constant at 7.4
Organs of Excretion in Humans
Body Fluid pH
Concentration of Urine
Nephron
28. Leads to the production of carbon dioxide and water
Concentration of Urine
Aerobic Respiration
Concentration Of Urine 5
Units of Bowman's capsule
29. Pores in stems
ADH
Lenticels
Sweat glands
Primary Function of Nephron
30. The fluid and small solutes entering the nephron -isotonic with blood plasm
Filtrate
Units of Bowman's capsule
Excretion
Kidney Main Function
31. Produced by the deamination of amino acids in the liver and diffuses into the blood for ultimate excretion in the kidneys
Concentration of Urine 4
Urea
Urine Formation
Acid Base disorders (Respiratory)
32. Serves to regulate body temperature - since the evaporation of sweat produces cooling
Kidney Main Function
Perspiration
Lenticels
Concentration of Urine 4
33. Water-solube wstes - such as ammonia and carbon dioxide - can exit the cells by simple diffusion through the cell membrane
Primary Function of Nephron
Concentration of Urine 3
Passive Excretion in Protozoans and Cnidarians
Glomerulus
34. Tubelike things which are continuous with the external air
Uric Acid
Perspiration
Filtration
Tracheae
35. 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
Kidneys
Bowman's capsule
Acid Base disorders (Respiratory)
36. In the liver - leads to the production of nitrogenous wastes such as urea and ammonia
Ureter
Deamination
Liver
Lenticels
37. Surrounds nephron to facilitate reabsorption of amino acids - glucose - salts - and water
Perspiration
Filtrate
Peritubular Capillary
Excretion in Annelids
38. Urine collects until it is expelled via the urethra
Urinary Bladder
Perspiration
Kidney Structure
Units of Bowman's capsule
39. Excrete water and dissolved salts
Spiracles
Excretion
Aerobic Respiration
Sweat glands
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
Organs of Excretion in Humans
Vacuole
Nephron Function
Excretion
41. The removal of metabolic wastes produced in the body
Deamination
Concentrated Urine
Excretion
Lungs
42. Anatomic arrangement of permits the reabsorption of ((% of the filtrate in the collecting tubules -makes the production of concentrated urine possible
Organs of Excretion in Humans
Filtration
Counter-Current-Multiplier System
Uric Acid
43. 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
Excretion in Plants
Malphigian Tubules
Primary Function of Nephron
44. Consists the Bowman's capsule - which embraces the glomerulus
Nephron
Organs of Excretion in Humans
Alodsterone
Tracheae
45. Processes nitrogenous wastes - blood pigment wastes - and other chemicals for excretion
Liver
Organs of Excretion in Humans
Kidney Main Function
Concentration of Urine 3
46. Two pairs of nephridia in each body segment excret water - mineral salts - and nitrogenous wastes in the form of urea
Excretion in Annelids
ADH
Lenticels
Units of Bowman's capsule
47. 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
Concentration of Urine 4
Alodsterone
Concentration Of Urine 5
Nephron
48. Exit of water vapor through leaf stomates
Passive Excretion in Protozoans and Cnidarians
Tracheae
Transpiration
Concentration of Urine 2
49. Regulation of the permeability of the collecting tubule to water is accomplished by the hormone ADH (vasopressin)
Liver
Units of Bowman's capsule
Secretion
Concentration Of Urine 5
50. Affect the blood acidity by causing changes in the HCO3-
Kidney Structure
Acid Base Disorders (Metabolic)
Acid Base disorders (Respiratory)
Urine Formation