YR2-K4-LSN8

HAVE READY:
- JOIN THIS LESSONUP
- KERBOODLE PAGE 54
- YOUR NOTEBOOK
- GOOGLE CLASSROOM
1 / 36
suivant
Slide 1: Diapositive
BiologieMiddelbare schoolhavo, vwoLeerjaar 2

Cette leçon contient 36 diapositives, avec diapositives de texte.

time-iconLa durée de la leçon est: 45 min

Éléments de cette leçon

HAVE READY:
- JOIN THIS LESSONUP
- KERBOODLE PAGE 54
- YOUR NOTEBOOK
- GOOGLE CLASSROOM

Slide 1 - Diapositive

LESSON 8

Slide 2 - Diapositive

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 - Diapositive

TODAY'S KEY WORDS:
  • Amylase 
  • Protease 
  • Lipase 
  • Fatty acids
  • Glycerol 
  • Saliva 
  • Mucus
  • Renin
  • Bile

read kerboodle pages 54-58

Slide 4 - Diapositive

Slide 5 - Diapositive

Remember: what are the 6 phases of digestion?
  1. Ingestion
  2. Mechanical digestion
  3. Chemical digestion
  4. Absorption
  5. Egestion
  6. Defaecation

Slide 6 - Diapositive

CHEMICAL DIGESTION:

  • BREAKING THE FOOD INTO EVEN SMALLER PIECES.
  • USING ENZYMES TO BREAK DOWN THE FOOD MOLECULES. 

Slide 7 - Diapositive

Slide 8 - Diapositive

Slide 9 - Diapositive

Chemical digestion step 1: 
  • the place: the mouth (esophagus)
  • the enzyme: amylase
  • the liquid: saliva
  • the nutrient: carbohydrates
  • the products: glucose & maltose

  • The enzymes in your saliva start breaking down the carbohydrate molecules into maltose and glucose.

Slide 10 - Diapositive

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 11 - Diapositive

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 12 - Diapositive

Before chemical digestion step 3: 
  • the place: liver
  • the enzyme: none
  • the liquid: bile
  • the nutrient: fats

  • Bile is an alkaline and neutralises the acid in the chyme (drops the pH).
  • Bile emulsifies (breaks chemical bonds) fats.

Slide 13 - Diapositive

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 14 - Diapositive

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 15 - Diapositive

Chemical digestion step 3: part C
  • the place: the duodenum
  • the enzyme: protease
  • the liquid: chyme 
  • the nutrient:proteins
  • the products: amino acids

Slide 16 - Diapositive

KERBOODLE PAGE 54

Slide 17 - Diapositive

ABSORPTION

  • NUTRIENTS AND SALTS ARE ABSORBED IN THE SMALL INTESTINE
  • WATER IS ABSORBED IN THE LARGE INTESTINE

Slide 18 - Diapositive

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 19 - Diapositive

Announcement: Your next lesson with me as your teacher will be on May 13 :)
  • For the next couple of weeks, you will have class with Mrs. Cooper again.
  • Because I will be teaching at a different school for 5 weeks
In the meantime, I wish you good luck with your test & assignments, and I am looking forward to seeing your again in May!

Slide 20 - Diapositive

IMPORTANT DEADLINES
  • LESSON 8: SUMMARY (OPTIONAL)
  • LESSON 9: GLOSSARY QUIZ (OPTIONAL)
  • LESSON 10: TEST & DEADLINE PROJECT 

Slide 21 - Diapositive

HW FOR LESSON 9
  • Complete the in class assignments for lesson 7 and 8
  • Prepare for the review lesson (read all notes and exercises, be prepared to ask the teacher 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 for a grade
  • Work on your project

Slide 22 - Diapositive

Assignments during lesson 7

Slide 23 - Diapositive

Slide 24 - Diapositive

Slide 25 - Diapositive

Slide 26 - Diapositive

Slide 27 - Diapositive

Slide 28 - Diapositive

Slide 29 - Diapositive

Slide 30 - Diapositive

Slide 31 - Diapositive

Assignments during lesson 8
timer
30:00

Slide 32 - Diapositive

Slide 33 - Diapositive

Slide 34 - Diapositive

Slide 35 - Diapositive

Slide 36 - Diapositive