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YR2-K4-LSN7
HAVE READY:
- JOIN THIS LESSONUP
- KERBOODLE PAGE 48
- YOUR NOTEBOOK
- GOOGLE CLASSROOM
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Biologie
Middelbare school
havo, vwo
Leerjaar 2
This lesson contains
27 slides
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interactive quizzes
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text slides
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Lesson duration is:
45 min
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HAVE READY:
- JOIN THIS LESSONUP
- KERBOODLE PAGE 48
- YOUR NOTEBOOK
- GOOGLE CLASSROOM
Slide 1 - Slide
LESSON 7: Digestion
Slide 2 - Slide
HW for today: flyer on eating disorder
Short presentation
Asking questions
Slide 3 - Slide
TODAY'S LEARNING GOALS:
I have a good knowledge and understanding of the anatomy of the digestive system.
I have a good knowledge and understanding of physical digestion
I know how diet influences the form and function of teeth.
Slide 4 - Slide
TODAY'S KEY WORDS:
Ingestion
Mechanical digestion
Chemical digestion
Absorption
Egestion
Defaecation
Herbdvore
Omnivore
Carnivore
read kerboodle pages 54-58
Slide 5 - Slide
DIGESTIVE ORGANS AND FUNCTIONS
Slide 6 - Slide
The digestive organs
write down the numbers 1-11 in your notebook
write down the names of the organs in your notebook
look up the functions of all these organs and briefly add these to your notes
timer
10:00
Slide 7 - Slide
rectum
pancreas
liver
mouth
stomach
oesophagus
large intestine
small intestine
Slide 8 - Drag question
The digestive organs
liver - creates bile
gall bladder - stores bile
duodenum - bile and enzymes from pancreas added
appendix - immunological defense
esophagus - transports food to stomach
stomach - protein digestion, stomach
pancreas - creates digestive enzymes
small intestine - digests and absorbs nutrients
large intestine - absorbs water and location of microbiome
rectum - stores faecal matter
anus - exit hole
Slide 9 - Slide
TEETH:
INCISORS
CANINES
PREMOLARS
MOLARS
CHILD HAS 20
ADULT HAS 32
Slide 10 - Slide
Slide 11 - Slide
TEETH:
ENAMEL
DENTINE
PULP
GUMS
PLAQUE
Slide 12 - Slide
crown
root
dentine
pulp
jaw bone
gums
enamel
nerves & bloodvessels
Slide 13 - Drag question
Slide 14 - Slide
Slide 15 - Slide
Slide 16 - Slide
CHEMICAL DIGESTION:
Cutting large polymers into monomers
Proteins, fats, carbohydrates
Enzymes required
Organs producing enzymes:
salivary glands, stomach wall, pancreas and small intestine wall
Slide 17 - Slide
ENZYMES
Salivary glands: amylase
Stomach wall: protease (pepsin)
Pancreas: protease, amylase, lipase
Small intestines: peptidase, maltase, nuclease
Slide 18 - Slide
BILE
PRODUCED by the lover
STORED in the gall blatter
contains emulsifying agents (bile salts)
contains waste products (bilirubin)
transporters via a tube to the duodenum
Slide 19 - Slide
EMULSIFICATION
by bile salts
devides larger globules of fat into smaller ones
increasing surface area for enzyme lipase from pancreas
Slide 20 - Slide
ABSORPTION
Once digestion is complete
monomers
second half small intestine
water mainly absorbed in large intestine (colon)
microbiome provides help
produced vitamin K
helps digesting plant cell walls
Slide 21 - Slide
Peristaltic movements
Contractions of muscles
esophagus, stomach, duodenum, small intestine, large intestine, rectum
sphincters (kringspieren) contract behind a bolus of food
moves food through the digestive tract
Slide 22 - Slide
Defecation
moving unabsorbed waste to rectum for storage
removing fecal (faecal) matter via anal orifice
everything between once in the three days and three times a day is good
Color and consistency of your poo tells you a lot about your health!
Looking back once or twice is a good idea
Slide 23 - Slide
IMPORTANT DEADLINES I
Project (food diary or lab report)
TV2E: April 6th
TV2H: April 5th
TV2I: April 5th
Slide 24 - Slide
IMPORTANT DEADLINES I
Project (food diary or lab report)
TV2E: April 6th
TV2H: April 5th
TV2I: April 5th
Slide 25 - Slide
IMPORTANT DEADLINES II
NO glossary, NO summary
INSTEAD: optional practice quiz (2x in magister)
Practice quiz via kwizl in lesson 9 (two weeks from now)
TEST: in lesson 10 (three weeks from now
Slide 26 - Slide
HW FOR LESSON 8
COMPLETE THE IN CLASS ASSIGNMENTS FOR LESSON 7
DECIDE: Do I take the practice quiz? Yes or no
HAND IN your project assignment on time
Slide 27 - Slide
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