Parts of the excretory system
Name 4 parts of the excretory system.
kidneys, ureters, bladder, urethra
What is ATP?
A temporary fuel that is the primary form of energy for cells
what are the components of urine in a healthy person
water, urea and ions
Which organ is responsible for water balance in the body?
The kidney
What is the main component of urine?
water
Which part of the excretory system carries urine out of the body?
the urethra
where does the energy in our food come from?
The Sun
How does urine look when we don’t have enough water?
it is darker in color
What is the kidney’s role in water balance in the body?
Conserve water when there is not enough and conserves less when there is an excess
When do the kidneys filter our blood?
24/7. At all times
Which part/parts of the body connects the kidney to the bladder?
the ureters
How much ATP does fermentation produce?
2
Which product of protein breakdown is excreted in urine?
urea
What is one danger of having too little water in our body?
it causes cells to shrivel and not work as well
What changes in the body might you expect if there was no urine output?
High waste levels in the blood.
Which structure stores urine until we need to use the toilet?
the bladder
How much ATP is produced in the mitochondria when oxygen is present?
36
How is protein prevented from getting into the urine?
Proteins are too large to pass through the holes in the capillaries in Bowman's capsule.
Which organ beside the kidneys is involved in water balance?
skin and lungs
sugar in urine can be a sign of what?
diabetes
What is the correct order of structures as they function in the process of excretion?
Kidney, ureter, bladder, urethra
What is energy production in the body’s cells called when it occurs without oxygen?
fermentation
How is sugar prevented from being excreted in urine?
It is reabsorbed into the blood along the length of the nephron.
What waste product results from energy production in the body’s cells in the absence of oxygen?
lactic acid
Aside from waste disposal, what additional function do the kidneys serve?
regulation of dozens of chemicals in the body, including many minerals and water