YR2-K4-LSN8

HAVE READY:
- JOIN THIS LESSONUP
- KERBOODLE PAGE 54
- YOUR NOTEBOOK
- GOOGLE CLASSROOM
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Slide 1: Slide
BiologieMiddelbare schoolhavo, vwoLeerjaar 2

This lesson contains 18 slides, with text slides.

time-iconLesson duration is: 45 min

Items in this lesson

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

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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

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