Warm Up
• The Digestive System by Sharon Fabian
Answer all questions!
If you were not here on Friday, you MUST
take the exam today!!
The Digestive System
• It is complicated
• There are lots of parts and lots of
processes that happen
• We will talk about them all, but we are
going to break to down
• Please focus on the things we are talking
about…
What is it?
Organs Involved
The body system that turns food we
Eat into fuel/energy that our cells need
to function and keep us alive
Mouth, Esophagus, Stomach
Small Intestine, Pancreas,
Liver, Gall Bladder, Large
Intestine
Digestive System
Cells need energy
to keep you alive. We
cannot get energy from
food until it has been
digested.
Importance
Picture
Functions of the Digestive System
1. Breaks down food into smaller molecules
our cells can use
2. Absorbs food into our circulatory system
(blood)
3. Eliminates waste products
Digestion
Function: Process of breaking food into
small pieces and removing nutrients
Importance: Turns the food we eat/drink into
energy to keep us alive
Other Info: there are 2 types of digestion
Video
Quiz
2 Types of Digestion
Mechanical Digestion -
Chemical Digestion -
Mechanical Digestion
What Happens?
Physical changes > food is broken into smaller
pieces
Where?
Mouth (teeth/tongue chew and mix food up)
Stomach (muscles mash & pound food)
Importance
Food must be broken up to swallow and digest
Chemical Digestion
What Happens?
Food is changed into different substances, saliva
and enzymes break down
Where?
Mouth > Saliva
Stomach > Stomach Acid
Small Intestine > Enzymes
Importance
Food must be fully broken down before nutrients
can be taken out
Video
• http://www.brainpop.com/health/bodysyste
ms/digestivesystem/
Nutrients
Function –Chemicals/Substances that a
living needs to live and grow.
Importance – the energy cells need to do
their jobs
Other Info – Calories = how much nutrients
or energy a food will give you
Parts of the Digestive System
Mouth –
Function: Teeth and tongue work to break food
into small pieces, saliva begins chemical
digestion
Importance: Where digestion begins
Other Info:
Mechanical = teeth and tongue
Chemical = Saliva mixing with food
Salivary Gland
Function: in mouth and throat, release saliva
Importance: need saliva to mix with food to
help break it down and swallow
Saliva
Function:
A watery liquid that contains chemicals to
help break down food
Importance: needed for chemical digestion
Other info:
Commonly known as spit
Esophagus
Function – carries food from mouth to stomach
Importance – uses involuntary muscle action to
push food down to stomach
Other info –
Solid food = 8 seconds down
Liquid = 2 seconds down
Stomach
Function: further digest food both chemically
and mechanically using stomach acid and
muscles
Importance: food storage, food broken down
more
Other info: food stays in here for 4-6 hours
Independent Work / HW
Mighty Mouth
The Stomach
The Esophagus
Exit Ticket
1. Why is the digestive system important to
human life?
2. What are 2 organs involved in the
digestive system?
Warm Up
• Put HW on desk to be checked
Review Sheet > work on your own – you
may use notes and HW sheets if you need
it
You will have 12 minutes
Warm Up
Put HW on desk to be checked – you have
3min to finish if you did not
Take out packet from yesterday
We will finish yesterday vocabulary
Warm Up/Review Answers
1. 3 functions of digestive system
Break down food
Absorb nutrients/food into blood
Eliminate Waste
2. Why is digestion/the digestive system so
important to human life?
Answer = cells need energy to live, energy is
released from food when it is digested
3. Where does digestion start?
Answer = the mouth
4. What happens to food during mechanical
digestion?
Answer = it is broken into smaller pieces
5. Where in the body does chemical digestion
happen?
Answer = Mouth(Saliva)
Stomach(Stomach Acid
Small Intestine (Enzymes
6. The name of the tube that brings food from the
mouth to the stomach
Answer = Esophagus
7. How does saliva help break down food?
Answer = has chemicals in it that help break down
food during chemical digestion
8. In the stomach, what happens to food?
Answer = food is stored,
broken down to a think liquid to be ready for small
intestine, emptied into small intestine
9. What role does your mouth play in
chemical digestion?
Answer = Saliva in the mouth begins
chemical digestion
10. According to the HW article “the
stomach”, where does food go after the
stomach?
Answer = Small Intestine
HW Answers
Continuing Vocabulary
Peristalsis
Function – a series of wavelike muscle
contractions which push food down your
esophagus and mix food in your stomach
Important – how food moves through body
http://www.youtube.com/watch?v=YJ34Qx6
hzJk
http://www.youtube.com/watch?v=o18UycW
RsaA
Small Intestine Video
Small Intestine
• Function – Use Villi (like fingers that stick out
from the surface of the small intestine) to
remove nutrients from food and put it into blood.
Importance – your body needs nutrients, once in
to the blood nutrients can be taken all over
Other info – about 25ft long
Called “small” because the tube is small around
Small Intestine Picture
Villi
Pancreas
Function – produces enzymes that help
digest protein, fats and carbs
Importance – without the pancreas it would
be hard to digest food or get nutrients from
it
Other info -
Liver
Function – produces
bile (an enzyme) and
processes nutrients in
the blood
Important – Bile helps
the body produce fat
and break down food
– also has jobs in
other body systems
Other info = (under
diaphragm)
Gall Bladder
Function – stores bile
until the body needs
it, helps digest fat
Importance – you can
live without it, helps
the body digest faster
Other info = color green
Enzymes
Function – help break down food
Important – chemicals the body needs to get
all nutrients out of food
Other info – come from the pancreas and
liver, stored in gall bladder
Recap
All nutrients are taken out of food in the
small intestine
- Enzymes made in the pancreas and liver
help to break down food while it is in the
small intestine
Large Intestine
• Function – food goes here after small
intestine, remove water from food (What is
left is waste material your body can’t use)
• Importance – Would be dehydrated if large
intestine did not do its job.
• Other info – After the large intestine,
digestion is complete. AKA Colon
Large Intestine Video
Rectum
Function – the final part
of the large intestine
that stores waste until
it “exits” your body
Importance – Help keep
waste in place until
you are ready to use
the bathroom
Your Digestive System Labeling
Use 49B
Exit
1.
Which part of the digestive system removes nutrients
and puts them in the blood?
A.
B.
C.
D.
Large Intestine
Stomach
Small Intestine
Mouth
2. Which part of the digestive system remove water from
the remains of food?
A.
B.
C.
D.
Large Intestine
Stomach
Small Intestine
Mouth
3. Which parts of the digestive system produce enzymes?
Warm Up
• Study packet and yesterday’s review for
quiz!!! > SILENTLY on YOUR OWN
• Put HW on desk to be checked
HW Review
Quiz
• Eyes on your own paper
• No Talking
• Write all answers on quiz paper
•
•
•
•
Textbook 45B – 50B
Check your reading questions
4-5 on 50
Write questions and answers
Exam Review
Number grade = Grade on exam
Letter grade = 2nd Quarter Final Grade
Each question was worth 3.3 points
Extra credit = 2 points
Partial credit was given for short answer
questions
Exam Review
Correct Answers
1. B
12. C
2. B
13. B
3. D
14. B
4. A
15. B
5. D
16. B
6. B
17. D
7. B
18. B
8. C
19. C
9. B
20. B
10. A
21. C
11. C
22. D
29. White blood cells fight, kill
Or attack pathogens (germs,
Bacteria and viruses)
23. C
24. C
25. D
26. D
27. Cilia and Mucus are in
your nose. They help
clean and filter the air you
breath. Without them
germs and particles
would get in your body
28. Antibiotics because they
kill bacteria
Quiz retake
Old quizzes returned
- Correct answers on notebook paper
- Do not change anything on original quiz
2nd
Block Seating Chart
Front of Room
Kolby
Gadalupe
Maya
Quantone
Allayah
Zyon
Syncere
Geovanna
Angela
Kamren
Andy
Door
Antonio
Wilmer
Judy
Lakeeva
Serena
Tyler
Tyreese
Back of Room
Take out leveled curriculum work from Friday!
3rd
Block Seating Chart
Front of Room
Katlyn
Myles
Sayra
Jermaine
Vinnaja
Edwin
Jamari
Kionna
Kayla
Kelnasia
Demarcus
Door
Jonathan
Luis
Delvin
Adriana
DJ
Back of Room
Take out leveled curriculum work from Friday!
5th
Block Seating Chart
Front of Room
Jalen
Jose
Drew
Tarvarya
Marvin
Flor
Chris
Eldin
Emely
Deaundray
Alfonso
Dajah
Moesha
Back of Room
Door
Jennifer B
Mason
Xavien
Ramon
Gadalupe
1st Block Seating Chart
Front of Room
Larah
Mitzy
Alexander
Ty’Reyonna
Jovaughn
Alexis
Jermaine
Randy
Jacorian
Franklin
Bryan
Back of Room
Study for quiz retake!!!!!!!!!
Door
Yomira
Mercedes
Carlos
Tayviona
Jarren
Cyrene
Jennifer
Leveled Curriculum
Due date depends on behavior
5 signatures = due end of class Tomorrow
Less than = due beginning of class
tomorrow
Leveled Curriculum
Due end of class tomorrow!
Directions
Working on your own
Talking only when allowed
Worksheets on front table
Homework
Leveled Curriculum
- Can you finish in one class period?
Quiz Corrections
- 5 points added to grade for each you redo
and get correct
- Rewrite question and answer on separate
sheet of notebook paper
Warm Up
• Sit in the same seat as yesterday
• Take out your Leveled Curriculum Work
– Begin working
1st Block Quiz Retake Return
• You must take ownership of your
education and your grades
• I do everything I can to give you the
information, but I cannot memorize it or
study it for you
• You must start to take this class and
school more seriously if you want to be
successful
Class Quiz Averages
1st – 54.6 (F)
2nd – 80.4 (C)
3rd – 80 (C)
5th – 78 (C)
Quiz Retake Assignment
For each question you answered wrong on
the retake… THE 2nd TIME… copy the
correct answer 3 times
*as soon as you finish you will work on your
leveled curriculum… take 40 minutes, too
bad
Intermediate Level
• Use textbook page 46B and note packet to
create a mini poster about peristalsis
– You must have the following
•
•
•
•
Explain what it is
How does it work
Why is it importance
Picture
Leveled Curriculum
Due at the end of class
(unless you got below
5 signatures). No
exceptions
*when finished staple all
work together (not
labeled diagram) with
assignment sheet on
top.
Behavior Guidelines
1. When allowed to
talk, talk only to the
people at your table
2. Focus on the work
you need to do
3. Finish early = extra
credit assignment
Learning Check
- Put everything away except for your
pen/pencil
- Not a quiz grade, but you must act like it is
- No talking
- No looking at other people’s papers
Learning Check Vocab
Pancreas
Bile
Small Intestine
Large Intestine
Liver
Water
Esophagus
Mouth
Mechanical
Chemical
Nutrients
Stomach
Gall Bladder
Saliva