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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. Created when exiting and reentering at different segments of the nephron - with tissue osmolarity increasing from cortex to inner medulla
Aerobic Respiration
Osmolarity Gradient
Excretion
Kidneys
2. Urine collects until it is expelled via the urethra
Vacuole
Acid Base disorders (Respiratory)
Urinary Bladder
Urine Formation
3. Leads to the production of carbon dioxide and water
Filtrate
Glomerulus
Aerobic Respiration
Ureter
4. In the liver - leads to the production of nitrogenous wastes such as urea and ammonia
Deamination
Acid Base disorders (Respiratory)
Concentration of Urine 2
Alodsterone
5. No specific excretory system in plants -any excess CO2 - O2 - and H2O vapor - leaves the lant by diffusion through stomata and lenticels
Organs of Excretion in Humans
Elimination
Excretion in Plants
Alodsterone
6. 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
Primary Function of Nephron
Sweat glands
Perspiration
7. Affect the blood acidity by causing changes in the HCO3-
Perspiration
Acid Base Disorders (Metabolic)
Concentrated Urine
Elimination
8. Pores in stems
Body Fluid pH
Excretion in Annelids
Perspiration
Lenticels
9. Water-solube wstes - such as ammonia and carbon dioxide - can exit the cells by simple diffusion through the cell membrane
Passive Excretion in Protozoans and Cnidarians
Acid Base disorders (Respiratory)
Glomerulus
Concentration of Urine 2
10. Clean the blood plasma of unwanted substances as it passes throught he kidney
Primary Function of Nephron
Nephron
Concentration Of Urine 5
Lungs
11. The fluid and small solutes entering the nephron -isotonic with blood plasm
Filtrate
Alodsterone
Counter-Current-Multiplier System
Liver
12. Affect the blood acidity by causing changes in the PCO2
Liver
Concentration Of Urine 5
Acid Base disorders (Respiratory)
Concentrated Urine
13. Hypertonic to the blood
Tracheae
Concentrated Urine
Urinary Bladder
Counter-Current-Multiplier System
14. Carbon dioxide is released from the tissues into adjacent tracheae through spiracles
Primary Function of Nephron
Osmolarity Gradient
Excretion in Arthropods
Ureter
15. Tubelike things which are continuous with the external air
Kidney Main Function
Osmolarity Gradient
Spiracles
Tracheae
16. Pores in leaves
Filtrate
Stomata
Lungs
Excretion in Annelids
17. Capillary bed embraced by Bowman's capsule
Bowman's capsule
Excretion
Alodsterone
Glomerulus
18. 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
Sweat glands
Excretion in Plants
Secretion
Concentration of Urine 2
19. 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
Nephron Function
Acid Base Disorders (Metabolic)
Urea
Passive Excretion in Protozoans and Cnidarians
20. Produced by the deamination of amino acids in the liver and diffuses into the blood for ultimate excretion in the kidneys
Organs of Excretion in Humans
Urea
Primary Function of Nephron
Tracheae
21. Accumulates mineral salts and uric acid in arthropods then transported to the intestine to be expelled with the solid wastes of digestion
Primary Function of Nephron
Organs of Excretion in Humans
Malphigian Tubules
Lenticels
22. Bulb of nephro -leads into a long - coiled tubule tht is divided into functionally distinct units
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23. Openings of tracheae
Reabsorption
Spiracles
Deamination
Uric Acid
24. Serves to regulate body temperature - since the evaporation of sweat produces cooling
Bowman's capsule
Kidneys
Perspiration
Ureter
25. Concentrated urine in the collecting tubules flows into the pelvis of the kidney - a funnel-like region that opens directly into this
Ureter
ADH
Concentration of Urine
Secretion
26. Surrounds nephron to facilitate reabsorption of amino acids - glucose - salts - and water
Reabsorption
Osmolarity Gradient
Peritubular Capillary
Alodsterone
27. Excrete water and dissolved salts
Glomerulus
Sweat glands
Nephron
Concentration of Urine
28. Two pairs of nephridia in each body segment excret water - mineral salts - and nitrogenous wastes in the form of urea
Excretion in Plants
Elimination
Deamination
Excretion in Annelids
29. An organelle specialized for water excretion by active transport
Concentration of Urine 2
Transpiration
Vacuole
Deamination
30. Remains relatively constant at 7.4
Reabsorption
Concentration of Urine
Ureter
Body Fluid pH
31. Function to maintain the osmolarity of the blood -excrete numerous waste products and toxic chemicals -conserve glucose - salt - and water
Kidneys
Nephron
Excretion in Plants
Urinary Bladder
32. 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
Secretion
Urinary Bladder
Perspiration
Kidney Main Function
33. Increases the permeability of the collecting duct to water - allowing more water to be absorbed and more concentrated urine to be formed
ADH
Perspiration
Tracheae
Kidney Main Function
34. Divded into three regions: outer cortex - inner medulla - renal pelvis
Vacuole
Organs of Excretion in Humans
Kidney Structure
Concentration of Urine 3
35. 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
Kidneys
Elimination
Concentration of Urine 2
Alodsterone
36. The removal of indigestible material
Nephron Function
Concentration Of Urine 5
Elimination
Acid Base disorders (Respiratory)
37. 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
Urine Formation
Alodsterone
Concentration of Urine 4
Liver
38. Consists the Bowman's capsule - which embraces the glomerulus
Nephron
Peritubular Capillary
Body Fluid pH
Acid Base disorders (Respiratory)
39. Regulation of the permeability of the collecting tubule to water is accomplished by the hormone ADH (vasopressin)
Liver
Excretion
Concentration of Urine 3
Concentration Of Urine 5
40. Filtration - secretion - and reabsorption are the three process
Urine Formation
Concentrated Urine
Stomata
Units of Bowman's capsule
41. Nitrogenous wastes of arthropods
Uric Acid
Stomata
Concentration of Urine
Malphigian Tubules
42. Processes nitrogenous wastes - blood pigment wastes - and other chemicals for excretion
Liver
Concentration Of Urine 5
Perspiration
Concentration of Urine
43. Carbon dioxide and water vapor diffuse from the blood and are continually exhaled
Lungs
Acid Base disorders (Respiratory)
Perspiration
Units of Bowman's capsule
44. The removal of metabolic wastes produced in the body
Body Fluid pH
Excretion
Glomerulus
Spiracles
45. Lungs - liver - skin - and kidneys
Nephron
Organs of Excretion in Humans
Lenticels
Urine Formation
46. 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
Concentration of Urine
Deamination
Excretion
Passive Excretion in Protozoans and Cnidarians
47. Proximal convoluted tubule - the loop of Henle - the distal convoluted tubule - and the collecting duct
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48. Exit of water vapor through leaf stomates
Bowman's capsule
Stomata
Concentration of Urine 2
Transpiration
49. 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
Acid Base Disorders (Metabolic)
Excretion in Plants
Sweat glands
50. Regulate the concentration of salt and water in the blood through the formation and excretion of urine
Bowman's capsule
Kidney Main Function
Nephron Function
Stomata