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?

Digestive System

The body system that turns food weEat into fuel/energy that our cells needto function and keep us alive

Organs Involved

Mouth, Esophagus, StomachSmall Intestine, Pancreas,Liver, Gall Bladder, Large Intestine

Importance

Cells need energy to keep you alive. We cannot get energy from food until it has been digested.

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)

ImportanceFood 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 > SalivaStomach > Stomach AcidSmall Intestine > Enzymes

ImportanceFood must be fully broken down before nutrients

can be taken out

Video

• http://www.brainpop.com/health/bodysystems/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 tongueChemical = 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 AcidSmall 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=YJ34Qx6hzJk

http://www.youtube.com/watch?v=o18UycWRsaA

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. Large IntestineB. StomachC. Small IntestineD. Mouth

2. Which part of the digestive system remove water from the remains of food?

A. Large IntestineB. StomachC. Small IntestineD. 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 pointsExtra credit = 2 pointsPartial credit was given for short answer

questions

Exam ReviewCorrect Answers

1. B

2. B

3. D

4. A

5. D

6. B

7. B

8. C

9. B

10. A

11. C

12. C

13. B

14. B

15. B

16. B

17. D

18. B

19. C

20. B

21. C

22. D

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

29. White blood cells fight, killOr attack pathogens (germs,Bacteria and viruses)

Quiz retake

Old quizzes returned

- Correct answers on notebook paper

- Do not change anything on original quiz

2nd Block Seating Chart

KolbyGadalupe

MayaZyon

SyncereGeovanna

Angela

AntonioWilmerJudy

Lakeeva

QuantoneAllayah

KamrenAndy

SerenaTyler

Tyreese

Front of Room

Back of Room

Door

Take out leveled curriculum work from Friday!

3rd Block Seating Chart

KatlynMylesSayra

EdwinJamariKionna

JonathanLuis

Delvin

Jermaine

Vinnaja

KaylaKelnasia

DemarcusAdriana

DJ

Front of Room

Back of Room

Door

Take out leveled curriculum work from Friday!

5th Block Seating Chart

JalenJoseDrew

ChrisEldin

Emely

Jennifer BMasonXavien

TarvaryaMarvin

Flor

DeaundrayAlfonsoDajah

Moesha

RamonGadalupe

Front of Room

Back of Room

Door

1st Block Seating Chart

LarahMitzy

Alexander JermaineRandy

YomiraMercedes

CarlosTayviona

Ty’ReyonnaJovaughn

Alexis

JacorianFranklinBryan

JarrenCyreneJennifer

Front of Room

Back of Room

Door

Study for quiz retake!!!!!!!!!

Leveled Curriculum

Due date depends on behavior

5 signatures = due end of class Tomorrow

Less than = due beginning of class tomorrow

Leveled Curriculum

Directions

Working on your own

Talking only when allowed

Worksheets on front table

Due end of class tomorrow!

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 Guidelines1. 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 Mouth

Bile Mechanical

Small Intestine Chemical

Large Intestine Nutrients

Liver Stomach

Water Gall Bladder

Esophagus Saliva