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YR2-K4-LSN8
HAVE READY:
- JOIN THIS LESSONUP
- KERBOODLE PAGE 54
- YOUR NOTEBOOK
- GOOGLE CLASSROOM
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Biologie
Middelbare school
havo, vwo
Leerjaar 2
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Lesson duration is:
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HAVE READY:
- JOIN THIS LESSONUP
- KERBOODLE PAGE 54
- YOUR NOTEBOOK
- GOOGLE CLASSROOM
Slide 1 - Slide
LESSON 8
Slide 2 - Slide
TODAY'S LEARNING GOALS:
I have a good knowledge and understanding of the enzymes and their workings.
I know how our body absorbs nutrients and where the various nutrients get absorbed.
Slide 3 - Slide
TODAY'S KEY WORDS:
Amylase
Protease
Lipase
Fatty acids
Glycerol
Saliva
Mucus
Renin
Bile
read kerboodle pages 54-58
Slide 4 - Slide
Slide 5 - Slide
CHEMICAL DIGESTION:
BREAKING THE FOOD INTO EVEN SMALLER PIECES.
USING ENZYMES TO BREAK DOWN THE FOOD MOLECULES.
Slide 6 - Slide
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 7 - Slide
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 8 - Slide
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 9 - Slide
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 10 - Slide
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 11 - Slide
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 12 - Slide
Chemical digestion step 3: part C
the place: the duodenum
the enzyme: protease
the liquid: chyme
the nutrient:proteins
the products: amino acids
Slide 13 - Slide
KERBOODLE PAGE 54
Slide 14 - Slide
ABSORPTION
NUTRIENTS AND SALTS ARE ABSORBED IN THE SMALL INTESTINE
WATER IS ABSORBED IN THE LARGE INTESTINE
Slide 15 - Slide
EGESTION & DEFAECATION
MOVING UNABSORBED MATERIALS FROM THE LARGE INTESTINE TO THE RECTUM
REMOVING POOP FROM YOUR BODY
HAPPENS ON AVERAGE ONCE EVERY 24 HOURS.
Slide 16 - Slide
IMPORTANT DEADLINES
LESSON 8: SUMMARY (OPTIONAL)
LESSON 9: GLOSSARY QUIZ (OPTIONAL)
LESSON 10: TEST & DEADLINE PROJECT
Slide 17 - Slide
HW FOR LESSON 9
COMPLETE THE IN CLASS ASSIGNMENTS FOR LESSON 7 (PART 2)
PREPARE FOR THE REVIEW LESSON (READ ALL NOTES AND EXERCISES, BE PREPARED TO ASK ME QUESTIONS AND BE PREPARED FOR A PRACTICE TEST OF SOME KIND)
MAKE SURE YOU WRITE DOWN YOUR SUMMARIES OF THE DAY
MAKE A PLAN AND DECIDE IF YOU ARE DOING THE GLOSSARY QUIZ AND OR THE SUMMARY FOR A GRADE.
WORK ON YOUR PROJECT
Slide 18 - Slide
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