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WorksheetsTopic 13: Excretion
Total questions: 30
Worksheet time: 20mins
The organ that removes metabolic wastes including urea, excess water, and salts from the blood.
lung
liver
kidney
colon
The organ whose excretory functions include detoxification of the blood and formation of urea.
liver
kidney
bladder
gall bladder
The functional unit of the kidneys which includes the glomerulus, Bowman's capsule and the Loop of Henle.
arteriole
veinule
alveoli
nephron
A nitrogen waste resulting from the breakdown of the amino acids produced during protein digestion.
carbon dioxide
bile
urea
water
The cluster of capillaries within a nephron.
glomerulus
alveoli
aorta
vein
In a healthy person, red blood cells, platelets and plasma proteins are
absent in filtrate and urine
present in filtrate and urine
absent in filtrate and present in urine
absent in urine and present in filtrate
Which sequence represents the correct order that a molecule of urea will pass through in the urinary system?
Bowman’s capsule, nephronic tubules, collecting duct, ureter, bladder, urethra
glomerulus, Bowman’s capsule, nephronic tubules, collecting duct, ureter, bladder, urethra
glomerulus, Bowman’s capsule, nephronic tubules, collecting duct, urethra, bladder, ureter
Bowman’s capsule, glomerulus, nephronic tubules, ureter, collecting duct, bladder, urethra
Use the above diagram to answer the next question. Water can be reabsorbed into the blood from the three structures labeled:
1, 3 and 9
1, 6 and 8
3, 5 and 8
5, 6 and 9
What are processes take place in the nephrons of the Kidneys
Distillation and Evaporation
Egestion and Excretion
Ultra-filtration and Re-absorption and Secretion
Mitosis and Meiosis
Which organ of the excretory system stores urine until the body is ready to eliminate it?
ureters
urethra
urinary bladder
renal pelvis
The area where all of the glucose is absorbed.
Loop of Henle
Proximal convoluted tubule
Distal convoluted tubule
Collecting tubule
What is A correct order of the steps of function within the nephron?
Secretion, Reabsorption, Filtration
Reabsorption, Secretion, Filtration
Filtration, Reabsorption, Secretion
Secretion, Filtration, Reabsorption
A) Urine passes through the ureters
B) Urea enters the kidneys
C) Urine enters the urethra
Which of the following is NOT filtered out of the blood in the kidneys?
Blood cells
Amino acids
Urea
Glucose
Osmoregulation means....
maintain water levels
maintain temperature
maintain heart rate
maintain breathing
Tubular reabsorption of glucose and amino acids from the glomerular filtrate into the capillary bed surrounding the nephron occurs in which of the following?
distal tubule
glomerular capsule
proximal tubule
loop of Henle
Name the process in the kidney where excess ions and chemicals (e.g drugs) are secreted from surrounding capillaries into the tubule.
Secretion
Reabsorption
Filtration
Excretion
______________________ is the fluid that passes from the blood through the capillary walls of the glomeruli into Bowman’s capsule.
Glomerular filtrate
Urine
Urea
Water
