Download Pancreas

HAPPY FRIDAY
B3
computer
Bellwork:
A.Write “Finish Plant Systems Test Analysis”.
B.10 minutes to Work on Plant Systems Test
Analysis (INDEPENDENTLY!!!) I am not
checking answers! – Due by the end of the
day. Yes! There are tutorials today.
C. Turn in any late work you may have.
D.Most Missed Quiz in 10 minutes.
Independent
CHAMPS
#34 & 35
#33
Plant Process A
H2O
B
D
F
A
C
E
Most Missed
Quiz
Collect Today
Plant Systems Test Analysis
Protist/Fungi MAKEUP Quiz
Assigned
Body Systems Slideshow (Mon – Thurs)
Page 122 – Notecard Defintions (Tuesday)
Plant Systems Vocabulary MAKEUP Quiz (Thursday)
Plant Systems Essay MAKEUP (Thursday)
Late
NOTHING!
Body Systems Presentations
- Completed PowerPoint,
everyone must do this.
- Due by 7AM day of
presentation.
- 2 minute presentation (no
more – no less)
- You will not know you are
presenting until day of
presentation: BE PREPARED!
- Class will grade presentation.
- PowerPoint instructions will
be online along with rubric
guidelines.
- EVERYONE WILL PRESENT AT
SOME POINT!!!
Monday
Digestive
Circulatory
Respiratory
Tuesday
Immune
Integumentary
Wednesday
Nervous
Muscular
Skeletal
Thursday
Reproductive
Endocrine
Excretory
Unit 10 – Body Systems
Definitions Due Tuesday (3/22/16)
All Parts Due Monday(3/28/16)
1. Digestion
2. Absorption
3. Respiration
4. Antibody
5. Stimuli
6. Response
7. Interdependence
8. Pathogen
9. Gamete
10. Hydrolysis
11. Circulatory System
12. Digestive System
13. Endocrine system
14. Epidermis
15. Excretion
16. Excretory System
17. Integumentary System
18. Muscular System
19. Nervous System
20. Pancreas
21. Reproductive System
22. Ovary
PG 122
23. Respiratory System
24. Skeletal System
25. Lymphatic System
26. Immune System
27. Organ
28. Neuron
Essential Question
PG 123
How does the body work to
maintain homeostasis?
Standard
B.10A - describe the interactions that occur among systems
that perform the functions of regulation, nutrient
absorption, reproduction, and defense from injury or illness
in animals
Talk to your table group:
What are some things that your body
regulates?
(regulate = control)
What is homeostasis?
…its all about BALANCE
FEEDBACK LOOP: how the body
maintains homeostasis when
something goes wrong
What does it mean?
Homeostasis comes
from the Greek and
means “staying the
same”
Maintaining a
constant internal
environment.
Claude Bernard
(1813-1878)
What happens when there is an imbalance in the
internal environment?
Jog on the spot for 60
seconds.
Start Timer
60 Seconds
60
45
30
15
0
How’s your
breathing?
Are you getting
warmer?
Start Timer
60 Seconds
60
45
30
15
0
Negative
feedback
A decrease in function in response to a
stimulus. (Removes the stimulus)
The OPPOSITE thing is added to return to the
original condition
examples: shivering when you’re cold, blood
sugar regulation
Positive
feedback
An increase in function in response to a
stimulus. (adds the stimulus)
The SAME thing is added to return to the original
condition
examples: contractions before child birth, blood
clotting
Is this a positive or negative feedback
loop?
Increase
Body takes
action
Normal
Normal
Decrease
Decrease
Body takes
action
Increase
Why do we need to maintain a
constant temperature?
Enzymes work best at normal
o
body temperature (approx. 37 C)
Too hot and we can get
o
hyperthermia (40 C).
Too cold and we can get
hypothermia (35oC).
Too hot
Normal
Too cold
Too hot
Taking off some
clothes
Skin goes red
Sweating
Normal
Stamp feet
Too cold
Goosebumps
Shivering
Task.
Define homeostasis.
Define negative feedback?
Start Timer
5 Minutes
5
4
Evaluate and describe the
effect of the exercise on
your body – what did it do
to return to normal.
3
2
1
0
Food for the cells…
Glucose.
Cells need a healthy diet of
glucose.
Not too much…not too little
Body needs to control level of
sugar (glucose) in the blood.
This is done by the pancreas.
Too much glucose…
Pancreas secretes
a hormone called
insulin.
Insulin tells liver
to store the
glucose as
glycogen.
Not enough glucose…
Pancreas can also
secrete a
hormone called
glucagon.
This tells the
liver to convert
glycogen back to
glucose.
Normal blood
glucose levels
Pancreas
Blood
Liver
Blood
Liver
Normal blood
glucose levels
Pancreas
Pancreas
Blood
Liver
Makes
insulin.
Transports
insulin around
the body.
Converts
glucose to
glycogen and
stores it.
Pancreas
Blood
Liver
Makes
glucagon.
Transports
glucagon around
the body.
Converts glycogen
back into glucose
and puts it back
into the blood
Normal blood
glucose levels
Diabetes.
With diabetes (type I) the
pancreas does produce insulin.
It used to be called the
wasting disease as you died
very slowly, becoming weaker
and weaker, until you entered
a coma.
Diabetes.
Fortunately it is now treatable
and diabetics can lead virtually
normal lives by taking regular
injections of insulin.
This was thanks to the
pioneering work of
Banting and Best.
Diabetes video
Task.
In your own words, explain
how blood sugar level is
controlled by the pancreas
and the cause of diabetes.
Start Timer
5 Minutes
5
4
3
Words to help:
hormone, insulin, glucose,
glycogen, liver, glucagon.
2
1
0
Insulin and the control of
blood sugar levels.
After a meal blood ……….. levels increase. As a result the
pancreas releases ……………. This enables the cells to absorb
………….., required for respiration, and also causes the ……….
to convert excess glucose to insoluble …………… for storage.
When blood sugar levels run low the ……………… releases
glucagon instead. This causes the ………….. to breakdown
the glycogen back into …………….. to give the cells energy. A
person with ……………. does not produce the insulin required
for absorbing and storing the glucose. As a result the person
feels tired, is constantly thirsty, urinates a lot and their body
slowly wastes away. Diabetes is treatable through injections
of ………………...
Insulin and the control of
blood sugar levels.
After a meal blood sugar levels increase. As a result the
pancreas releases insulin. This enables the cells to absorb
glucose, required for respiration, and also causes the liver
to convert excess glucose to insoluble glycogen for storage.
When blood sugar levels run low the pancreas releases
glucagon instead. This causes the liver to breakdown the
glycogen back into glucose to give the cells energy. A person
with diabetes does not produce the insulin required for
absorbing and storing the glucose. As a result the person
feels tired, is constantly thirsty, urinates a lot and their body
slowly wastes away. Diabetes is treatable through injections
of insulin.
Positive or negative?
Blood glucose regulation
Temperature regulation
For the rest of today…
1. Draw a feedback loop of
your own!
2. Think about how your
body responds when:
•
•
•
•
you get dehydrated
you get scared
you cut your finger
you get tired
3. Use your own example
for extra credit.
• You MUST get approval
before you begin.
• Requirements:
1.
2.
3.
4.
Your feedback loop must be
titled
You must have at least 4
steps in your loop
You must write the steps
and draw them (they
should be colored, too!)
These will go up in the
hallway…so make them
school appropriate and
neat!
• This is for a daily grade.