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Bio 20 - Excretory System

Total questions: 27

Worksheet time: 27mins

Name
Class
Date
1.
Which organ of the excretory system stores urine until the body is ready to eliminate it?
a)
ureters
b)
urethra
c)
urinary bladder
d)
urea
2.
What is the main function of the excretory system?
a)
to collect and remove wastes from the body
b)
to strengthen skeletal muscles
c)
to protect the nervous system
d)
to bring oxygen to body cells
3.
Under normal conditions, which of the following substances is found in urine?
a)
blood cells
b)
protein
c)
glucose
d)
urea
4.
Which excretory organ eliminates water and some chemical wastes in perspiration?
a)
lungs
b)
skin
c)
liver
d)
kidneys
5.
What function do the kidneys perform?
a)
eliminate carbon dioxide
b)
supply oxygen to body cells
c)
remove urea and excess water
d)
play a role in gas exchange
6.
These organs are responsible for what?
a)
storing urine
b)
storing water
c)
filtering blood
d)
they don't have a particular job 
7.
What is #2?
a)
Kidney
b)
Ureters
c)
Bladder
d)
Urethra
8.
What is #3?
a)
Kidney
b)
Ureters
c)
Bladder
d)
Urethra
9.
What is #4?
a)
Kidney
b)
Ureter
c)
Bladder
d)
Urethra
10.

Where are the kidneys located?

a)

Upper part of your chest

b)

Back wall of the abdomen

c)

Above the heart

d)

The lower side of the brain

11.

What are the filtering units of the kidneys?

a)

nephrons

b)

ureters

c)

nuerons

d)

alveloi

12.

The part of the nephron where fluid is filtered from the circulatory system is the:

a)
Ascending Loop of Henle
b)
Descending Loop of Henle
c)
Bowman's Capsule
d)
Malphigian Tubule
13.

The primary enzyme released when blood pressure drops is:

a)

Renin

b)

Angiotensin

c)

Aldosterone

d)

ADH

14.
The high pressure capillary network that pushes fluid out of the bloodstream is the:
a)
Proximal Tubule
b)
Distal Tubule
c)
Loop of Henle
d)
Glomerulus
15.
Water and Salt re-absorption into the circulatory system is mostly done by:
a)
Proximal Tubule
b)
Distal Tubule
c)
Loop of Henle
d)
Glomerulus
16.
Which one is correct about the Urinary System?
a)
The Urine passes from the intestine through the ureter into the urinary bladder, where it is stored.
b)
The Urine passes from the lungs through the ureter into the urinary bladder, where it is stored.
c)
The Urine passes from the kidneys through the ureter into the urinary bladder, where it is stored.
d)
The Urine passes from the spleen through the ureter into the urinary bladder, where it is stored.
17.

What are kidney stones?

a)

crystallized bile

b)

crystallized urine

c)

crystallized saliva

18.

Which hormone regulates blood water level?

a)

FSH

b)

Insulin

c)

Adrenaline

d)

ADH

19.

The main function of nephrons is

a)

blood filtration

b)

blood purification and urine formation

c)

all the above

20.

Which substance is NOT found in the liquid in the highlighted parts of a healthy person?

a)

Glucose

b)

Salt

c)

Water

d)

Urea

21.

The area where all of the glucose is absorbed.

a)

Loop of Henle

b)

Proximal convoluted tubule

c)

Distal convoluted tubule

d)

Collecting tubule

22.

The area where the pH of the blood is controlled.

a)

Loop of Henle

b)

Proximal convoluted tubule

c)

Distal convoluted tubule

d)

Collecting tubule

23.

The area influenced by hormones in order to regulate water balance in the body.

a)

Loop of Henle

b)

Proximal convoluted tubule

c)

Bowmans Capsule

d)

Collecting tubule

24.

The area of the nephron impermeable to water is the....

a)

Descending limb of the L of H

b)

Ascending limb of the L of H

c)

Proximal tubule

d)

Distal tubule

25.
In a healthy person, some glucose is reabsorbed into the bloodstream while majority is lost in the urine. 
a)
True
b)
False
26.
The high pressure capillary network that pushes fluid out of the bloodstream is the:
a)
Proximal Tubule
b)
Distal Tubule
c)
Loop of Henle
d)
Glomerulus
27.
During the process of filtration in the nephron, most of the water, glucose, and vitamins are:
a)
stored in the bladder
b)
excreted through the ureters
c)
reabsorbed into the blood
d)
concentrated in the urine

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