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