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Excretory System

Total questions: 25

Worksheet time: 17mins

Name
Class
Date
1.
These organs are responsible for what?
a)
storing urine
b)
storing water
c)
filtering blood
d)
they don't have a particular job 
2.

Which organ collects urine until the body is ready to eliminate it?

a)

Ureters

b)

Urethra

c)

Bladder

d)

Kidneys

3.

Our body also eliminates waste through the skin.

a)

True

b)

False

4.
The tube that carries urine from the kidney into the bladder is called the:
a)
Ureter
b)
Urethra
c)
Proximal Tubule
d)
Collecting Duct
5.
Blood flows into the kidney along the:
a)
Renal Venule
b)
Renal Artery
c)
Glomerulus
d)
Hepatic Artery
6.
Birds & Insects get rid of Nitrogenous waste by producing:
a)
Urea
b)
Ammonia
c)
Uric Acid
d)
NO2 gas
7.
Under normal conditions, which of the following substances is found in urine?
a)
blood cells
b)
protein
c)
glucose
d)
urea
8.

What are the filtering units of the kidneys?

a)

nephrons

b)

ureters

c)

nuerons

d)

alveloi

9.

What are kidney stones?

a)

crystallized bile

b)

crystallized urine

c)

crystallized saliva

10.

Which organ(s) remove waste gases?

a)

Bladder and kidneys

b)

Lungs

c)

Large intestine

11.

Why is your skin part of the excretory system?

a)

Sweating gets rid of salt and water

b)

Exhaling releases carbon dioxide

c)

Sweating gets rid of carbon dioxide

d)

The large intestine releases feces

12.

The cluster of capillaries within a nephron.

a)

glomerulus

b)

alveoli

c)

aorta

d)

vein

13.

The functional unit of the kidneys which includes the glomerulus, Bowman's capsule and the Loop of Henle.

a)

arteriole

b)

veinule

c)

alveoli

d)

nephron

14.
The process of removal of the body’s wastes is called
a)
gas exchange.
b)
respiration.
c)
excretion.
d)
filtration.
15.
Place the following events in sequence:
A)  Urine passes through the ureters
B)  Urea enters the kidneys
C)  Urine enters the urethra
a)
B, A, C
b)
C, B, A
c)
B, C, A
d)
A, C, B
16.

The wider of the two arterioles is the...

a)

Efferent arteriole

b)

Afferent arteriole

17.

Excretion, in unicellular plants and animals, takes place through _________.

a)

Diffusion

b)

Osmosis

18.

What act as a filter in the nephron?

a)

Loop of henle

b)

Bowman's Capsule

c)

Glomerulus

d)

Collecting Tubule

19.

Suggest the ideal solution for kidney failure patient.

a)

Hemodialysis

b)

Peritoneal Dialysis

c)

Transplant

20.

Type of dialysis in which a machine receives waste-filled blood from the patient's bloodstream, filters the blood, and then returns the cleansed blood to the patients body; sometimes called an artificial kidney.

a)

peritoneal dialysis

b)

dialysis

c)

haemodialysis

d)

nephro sclerosis

21.

Why would a person require haemodialysis?

a)

Their blood contains too many toxins

b)

Their kidneys are not functioning well enough to maintain health

c)

Their liver is producing too much urea

d)

Their kidneys have been damaged

22.

Recall where in the kidney the Bowman's capsules are found.

a)

Renal Medulla

b)

Renal Cortex

c)

Renal Pelvis

23.

Recall what structure carries filtrate from the renal pelvis to the bladder.

a)

Loop of Henle

b)

Distal convoluted tubule

c)

Ureter

d)

Urethra

24.
________ are single-celled thin (smallest) blood vessels that allow materials to move into and out of blood. 
a)
Renal vein
b)
Renal artery
c)
Vessels
d)
Capillaries
25.

diabetic insipidus

a)

cannot concentrate urine

b)

produce overly concentrated urine

c)

Proteinuria

d)

loss of large molecules