Excretory System

Question 1

Urea

Answer 1

Formed when protein breaks down in liver

Question 2

Kidneys

Answer 2

Filter blood to remove urea. Produce urine.

Question 3

Urine

Answer 3

Excess waste and water

Question 4

Ureters

Answer 4

2 ureters what ch cells connect each kidney with bladder, transport urine from kidneys to bladder

Question 5

Bladder

Answer 5

Collects urine before excreting it during urination

Question 6

Urethra

Answer 6

Tube that that connects bladder to outside and f body through which urine is excreted

Question 7

Filtration

Answer 7

Blood passes through kind kidneys. Kidneys filter blood.

Question 8

Absorption

Answer 8

Substances which are needed are re-absorbed into blood

Question 9

Diffusion

Answer 9

Substances are transported in and out of specialized cells of kidney through this process

Question 10

Excretion

Answer 10

When bladder has filled up, it used muscles to force urine out of body and through urethra

Question 11

Kidney failure

Answer 11

• Kidney loses it’s ability to filter blood
• harmful or fatal
• kidney dialysis, machine filters blood

Question 12

Kidney stones

Answer 12

• liquid intake is too low, concentration of solutes in kidney is too high
• small=stay in kidney, or move down to ureter to be excreted
• large=pain, may get stuck, bleeding, blocking flow of urine

Question 13

Bladder infection

Answer 13

• common in women
• bacteria enters bladder and causes infection
• painful when urinating

Question 14

Purpose

Answer 14

• remove harmful metabolic waste products

* prevent too much or too little water in body