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YR2-K4-LSN5
HAVE READY:
- HW FOR TODAY (uploaded)
- KERBOODLE PAGE 54
- YOUR NOTES
- GOOGLE CLASSROOM
1 / 38
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Slide 1:
Tekstslide
Biologie
Middelbare school
havo, vwo
Leerjaar 2
In deze les zitten
38 slides
, met
interactieve quizzen
,
tekstslides
en
2 videos
.
Lesduur is:
45 min
Start les
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Onderdelen in deze les
HAVE READY:
- HW FOR TODAY (uploaded)
- KERBOODLE PAGE 54
- YOUR NOTES
- GOOGLE CLASSROOM
Slide 1 - Tekstslide
LESSON 5
Slide 2 - Tekstslide
Review lesson 1:
Nutrients
Sources and Uses
Slide 3 - Tekstslide
What is sodium an example of?
A
carbohydrates
B
water
C
minerals
D
vitamins
Slide 4 - Quizvraag
What are peaches a good source of?
A
carbohydrates
B
water
C
fibres
D
proteins
Slide 5 - Quizvraag
What are raw nuts a good source of?
A
carbohydrates
B
water
C
fibres
D
proteins
Slide 6 - Quizvraag
Review lesson 2:
balanced diets
dietary choices
psychological issues with food
Slide 7 - Tekstslide
Someone who is a ovotarian does not eat ..... and does eat .........?
A
vegetables, cheese
B
meat, eggs
C
meat, fish
D
vegetables, fish
Slide 8 - Quizvraag
Explain the difference between a vegetarian and a pescatarian.
Slide 9 - Open vraag
Which religion does not allow any alcohol and any pork products?
A
Islam
B
Buddhism
C
Judeism
D
Christianity
Slide 10 - Quizvraag
Review lesson 3:
Deficiencies
Diabetes
Unhealthy lifestyles
Slide 11 - Tekstslide
What deficiency is caused by a lack of iron?
A
scurvy
B
rickets
C
anemia
D
marasmus
Slide 12 - Quizvraag
What deficiency is caused by a lack of vitamin C?
A
scurvy
B
rickets
C
anemia
D
marasmus
Slide 13 - Quizvraag
What deficiency is caused by a lack of vitamin D & calcium?
A
scurvy
B
rickets
C
anemia
D
marasmus
Slide 14 - Quizvraag
Which type of diabetes is preventable?
A
type 1
B
type 2
Slide 15 - Quizvraag
Review lesson 4:
How does our body process the food?
Fases of digestion
Teeth
Slide 16 - Tekstslide
What does ingestion mean?
A
moving the food into your body
B
biting and chewing food
Slide 17 - Quizvraag
MOUTH
STOMACH
LIVER
OESOPHAGUS
DUODENUM
SMALL INTESTINE
LARGE INTESTINE
PANCREAS
Slide 18 - Sleepvraag
crown
root
dentine
pulp
jaw bone
gums
enamel
nerves & bloodvessels
Slide 19 - Sleepvraag
HW FOR TODAY:
HW for lessons 2-5 should be completed and handed in.
Did you check you did it to the correct level?
Answer sheets are uploaded on the stream.
Any questions until now?
Slide 20 - Tekstslide
LESSON 5
Slide 21 - Tekstslide
TODAY:
Chemical digestion (mouth)
Chemical digestion (stomach)
Chemical digestion (duodenum)
Absorption (villi)
Slide 22 - Tekstslide
INGESTION:
MOVING THE FOOD INTO YOUR MOUTH
Slide 23 - Tekstslide
MECHANICAL DIGESTION:
BREAKING THE FOOD INTO SMALLER PIECES.
THIS IS DONE BY YOUR TEETH
BITING AND CHEWING
Slide 24 - Tekstslide
Slide 25 - Video
CHEMICAL DIGESTION:
BREAKING THE FOOD INTO EVEN SMALLER PIECES.
USING ENZYMES TO BREAK DOWN THE FOOD MOLECULES.
Slide 26 - Tekstslide
KERBOODLE PAGE 54
Slide 27 - Tekstslide
STEP 1:
MOUTH
STEP 2:
STOMACH
STEP 3:
DUODENUM
Slide 28 - Tekstslide
Chemical
digestion
step 1:
the place: the mouth (esophagus)
the enzyme: amylase
the liquid: saliva
the nutrient: carbodrates
the products: glucose & maltose
The enzymes in your saliva start breaking down the carbohydrate molecules into maltose and glucose.
Slide 29 - Tekstslide
Chemical digestion step 2:
the place: the stomach
the enzyme: protease
the liquid: chyme and hydrochloric acid
the nutrient: proteins
the products: amino acids
The enzymes in your chyme start breaking down the protein molecules into amino acids.
Slide 30 - Tekstslide
Extra info about the stomach:
the place: the stomach
the enzyme: rennin
the liquid: chyme
the nutrient: milk
the products:turns the proteins in milk solid and lump together so it is easier to digest
Slide 31 - Tekstslide
Before chemical digestion step 3:
the place: liver
the enzyme: none
the liquid: bile
the nutrient: fats
Bile is an alkalyne and neutralises the acid in the chyme. (drops the pH).
Bile emulsifies (breaks chemical bonds) fats.
Slide 32 - Tekstslide
Chemical digeston step 3: part A
the place: the duodenum
the enzyme: lipase
the liquid: chyme and bile
the nutrient: fats
the products: fatty acids and glycerol
Slide 33 - Tekstslide
Chemical digestion step 3: part B
the place: the duodenum
the enzyme: amylase
the liquid: chyme
the nutrient:carbohydrates and maltose
the products: glucose
Slide 34 - Tekstslide
Chemical digestion step 3: part C
the place: the duodenum
the enzyme: protease
the liquid: chyme
the nutrient:proteins
the products: amino acids
Slide 35 - Tekstslide
Slide 36 - Video
Slide 37 - Tekstslide
HW FOR LESSON 6:
Complete the hw for lesson 6 on classroom to your correct level.
Study the Quizlet of "Glossary Food & Digestion" (100% on learn, match, flashcards & test)
Slide 38 - Tekstslide
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