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