The Excretory System

C. tubules in the kidney
As blood is filtered in the excretory system, which of the following functions like a recycling center?

A. the bladder
B. Bowman’s capsule
C. tubules in the kidney
D. ureters between the kidney and the bladder

A. The lungs push carbon dioxide from red blood cells out of the body through exhalation.
How do the lungs help excrete waste material from the body?

A. The lungs push carbon dioxide from red blood cells out of the body through exhalation.
B. The lungs convert poisonous gas into oxygen that the body can use.
C. The lungs push nitrogen into the digestive system so that it can be removed by the body.
D. The lungs help protective cells in the body break down gaseous urea.

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C. toxic buildup
Which would be a result of a malfunctioning excretory system?

A. paralysis
B. memory loss
C. toxic buildup
D. difficulty breathing

B. maintaining homeostasis
Which is the overall purpose of the excretory system?

A. extracting energy from food
B. maintaining homeostasis
C. moving nutrients through the body
D. gathering information

B. liver
Gout is a disease that is caused by a buildup of unprocessed uric acid. When a doctor diagnoses a patient as having gout, which organ is most likely malfunctioning?

A. skin
B. liver
C. lungs
D. kidneys

C. removing carbon dioxide that is produced during respiration.
The excretory system helps the respiratory system by

A. introducing more oxygen into the lungs.
B. circulating blood into and out of the lungs.
C. removing carbon dioxide that is produced during respiration.
D. removing urine that is produced during respiration.

A. large intestine
In the diagram below, which organ of the excretory system is at the end of the arrow?
http://media.edgenuity.com/evresources/3209-12-03/mc007-1.jpg

A. large intestine
B. lungs
C. liver
D. kidneys

D. It processes undigested food into feces.
How does the large intestine help the body excrete wastes?

A. It reabsorbs water from filtrate.
B. It forms urine.
C. It removes urea from the body.
D. It processes undigested food into feces.

C. buildup of toxins
What would most likely be the result of a malfunctioning liver?

A. difficulty passing urine
B. inability to grow hair
C. buildup of toxins
D. limited feces production

B. salt, urea, and water
Which materials are excreted through sweat glands in the skin?

A. carbon dioxide, hydrogen, and water
B. salt, urea, and water
C. urine, alcohol, and water
D. fats, ammonia, and water

C. converting toxins to less toxic forms
Consider the organ that is marked in the image below.
http://media.edgenuity.com/evresources/3209-12-03/mc010-1.jpg
What is the main function of this organ?

A. producing urine from unusable substances
B. excreting salt and urea out of the body
C. converting toxins to less toxic forms
D. digesting foods and liquids

B. skin
Which organ that works as part of the excretory system is considered the largest organ in the human body?

A. kidney
B. skin
C. large intestine
D. liver

B. CO2 out
In the diagram below, which step represents the excretory function of the lungs?
http://media.edgenuity.com/evresources/3209-12-03/mc009-1.jpg

A. blood in
B. CO2 out
C. O2 in
D. blood out

D. rectum
Urine is held in the bladder before excretion. Where is feces stored before excretion?

A. small intestine
B. stomach
C. urethra
D. rectum

B. When a patient’s kidneys failed, he wondered if it would be possible to perform kidney functions with an external machine.
What was Dr. Willem Johan Kolff’s first step in using the scientific process to invent the hemodialysis machine?

A. He built the machine and tried it with various patients, collecting data about its effectiveness.
B. When a patient’s kidneys failed, he wondered if it would be possible to perform kidney functions with an external machine.
C. He researched and collected data about numerous patients who exhibited symptoms of kidney failure.
D. He drew conclusions from studies of various symptoms of kidney failure, and drew a design for the ideal external blood-processing machine.

A. pH balance.
Acidosis and alkalosis can occur when the excretory system fails to keep a functional:

A. pH balance.
B. skin temperature.
C. O2-to-CO2 ratio.
D. circulation rate.

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