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