Download 8 excretory

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Learning About the Excretory System
Who Took the Insulin?
Removing waste products from the body is the major
function of the excretory system. It works with both the
respiratory and circulatory system to remove these wastes.
There are four major organs in the excretory system. These
organs are the lungs, liver, kidneys and skin.
You have learned that the lungs excrete carbon
dioxide waste. The lungs also excrete small amounts of
heat and water. The skin excretes most of the body’s waste
heat. In addition, the skin removes some water and salts.
These wastes are excreted by the skin as sweat. This sweat
helps your body cool off. The liver filters the blood and
changes harmful materials, such as alcohol, to harmless
materials. The kidneys excrete a liquid waste called urine.
The food you eat supplies glucose (type of sugar) to
the cells for energy. If you have the disease called diabetes
then the glucose does not go into the cells because an organ
called the pancreas is not producing insulin. The glucose
stays in the blood where it is filtered by the kidneys and
placed in the urine to be excreted. If the pancreas is not
working correctly diabetics must take injections of insulin
that they get from their doctor. Without insulin the body
cannot maintain its balance.
You get ________
and eat _______.
Materials: colored pencils
What To Do:
1. Label 1 SKIN and outline it in brown.
2. Label 2 lungs and color them pink.
3. Label 3 liver and color it purple.
4. Label 4 kidneys and color them yellow.
Blood glucose
levels _____
_________.
Body turns food
into _______ and
blood glucose
level ____ _____
Maintaining
Blood Glucose levels
1
2
Pancreas
releases ______
to make cells
use glucose.
Cells use
glucose and
oxygen to make
__________
3
4
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insulin
food
goes up
Word Bank
hungry
glucose
energy
goes down
Last night there was a robbery at the Springfield Drug Store.
Ten bottles of insulin were taken. The Springfield Police
Department has eight likely suspects and they believe the
perpetrator is probably diabetic. All of the suspects have
given a urine sample.
A color
Materials: numbered urine samples in test
change
tubes, universal indicator, suspect sheet
from yellow
What To Do:
to
1. Look at the suspect sheet and place the
blue/purple
name of each suspect in the chart.
indicates
2. Each table is testing one suspect’s urine.
there is
3. Place 5 drops of universal indicator in the sugar in the
test tube.
urine.
4. Swirl the test tube around so the liquids
mix well.
5. Observe the color of the urine. Record.
6. Share your findings with the class.
Name of
Suspect
Color of
urine before
testing
Color of
urine after
testing
Diabetic
(yes/no)
Last night there was a robbery at the Springfield Drug Store.
Ten bottles of insulin were taken. The Springfield Police
Department has eight likely suspects and they believe the
perpetrator is probably diabetic. All of the suspects have
given a urine sample.
A color
Materials: numbered urine samples in test change
tubes, universal indicator, suspect sheet
from yellow
What To Do:
to
1. Look at the suspect sheet and place the
blue/purple
name of each suspect in the chart.
indicates
2. Each table is testing one suspect’s urine.
there is
3. Place 5 drops of universal indicator in
sugar in the
the test tube.
urine.
4. Swirl the test tube around so the liquids
mix well.
5. Observe the color of the urine. Record.
6. Share your findings with the class.
Name of
Suspect
1.
1.
2.
2.
3.
3.
4.
4.
5.
5.
6.
6.
7.
7.
8.
8.
Color of
urine before
testing
Color of
urine after
testing
Diabetic
(yes/no)
Questions:
1. Who took the insulin? __________________________
Questions:
1. Who took the insulin? __________________________
2.29How do you know? __________________________
2. How do you know? __________________________
Do not glue in your ISN. Keep in your HOTS pocket.
Do not glue in your ISN. Keep in your HOTS pocket.
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Name ______________
period _____
EXIT TICKET
1. Which of the following is NOT a waste from the human
body?
A. Sweat
B. Urine
C. Heat
D. Sweet
2. Which of the following is part of the excretory system?
A. Stomach
B. Kidneys
C. Heart
D. Small Intestine
Name ______________
period _____
EXIT TICKET
1. Which of the following is NOT a waste from the human
body?
A. Sweat
B. Urine
C. Heat
D. Sweet
2. Which of the following is part of the excretory system?
A. Stomach
B. Kidneys
C. Heart
D. Small Intestine
3. What part of the body is not working correctly if we
have diabetes?
A. Stomach
B. Pancreas
C. Heart
D. Small Intestine
3. What part of the body is not working correctly if we have
diabetes?
A. Stomach
B. Pancreas
C. Heart
D. Small Intestine
Conclusion: ( oxygen, wastes, cells, function, glucose, balance, insulin)
The major function of the excretory system is to remove
Conclusion: ( oxygen, wastes, cells, function, glucose, balance, insulin)
The major function of the excretory system is to remove
__________. Another_____________ of the system is to
__________. Another_____________ of the system is to
keep our body in ______. Our cells use __________ and
keep our body in ______. Our cells use __________ and
________ to make energy. To keep our blood glucose
________ to make energy. To keep our blood glucose
levels stable, our body produces ________. The insulin
levels stable, our body produces ________. The insulin
allows the _____ to use the glucose.
allows the _____ to use the glucose.