Y1_T2_LSN2.4

• Science
• Middelbare school
• havo, vwo
• Leerjaar 1

iubioub

Materials

• Computer (Google Classroom, KWIZL & Lessonup)
• Textbook
• Notebook
• Pencil case

I am ready for this lesson:

• I am in the correct seat.
• My jacket is in my locker.
• My telephone is at home or in my locker.
• I have all my materials ready as required by the checklist.
• I do not have any food / drinks and/or chewing gum.

Are we ready?

😒🙁😐🙂😃

iubioub

Welcome THV1B!

§2.4 - Combustion in the body

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During this lesson I will .......

• ... be quiet during classroom instructions.
• ... raise my hand when I have a question.
• ... listen when others are speaking.
• ... be an active and involved participant.
• ... only touch/use my own materials.

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A WARNING

DIFFERENT SEAT

TIME OUT: 5 MIN. MAX CORRIDOR

REMOVAL TO B022

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PLAN FOR TODAY:

1.

2.

3.

4.

- MIN: ENTRY TICKET

• answer
• check & feedback
• check & reflection

- MIN: CHECK HW

• answer
• correct
• !stickers!

30-40 MIN: NEW TOPIC

• learning goals
• key words
• notes
• summary of the day

15 MIN: HW TIME

• complete hw
• review notes
• study glossaries

Any questions?

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Entry Ticket

• Go to Kwizl.eu
• Login with your school Google
• Start quiz: ET_Y1_T2_.....
• Answer
• Check & give feedback
• Review your mistakes and reflect.
• Write this down in your notebook

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HW CHECK

• Open the answer sheet on Google Classroom.
• Check the hw exercises you did with a different colour pen / pencil
• Correct your mistakes.
• When your name is called, show your work to your teacher for a sticker.

What did we discuss in previous lessons?

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§2.4

Combustion in the Body

Combustion

Aerobic respiration

Anaerobic respiration

Oxygen debt

Fermentation

TB P.76-81

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§2.4 - Learning Goals

• I know the difference between aerobic and anaerobic respiration
• I know the chemical formula of both aerobic and anaerobic respiration
• I know the disadvantages of anaerobic respiration
• I know what fermentation is and can give examples of
• fermentation in different foods
• I know the chemical formula for fermentation

TB P.76-77

iubioub

§2.4 - Keywords

• Combustion
• Aerobic respiration
• Anaerobic respiration
• Oxygen debt
• Fermentation

TB P.76-77

iubioub

Energy

Energy is needed for survival and is used for

• Building new cells
• Movement
• Heat

Food webs show sources of energy for different organisms.

Digestion breaks down the food into smaller molecules.

Respiration is the process of getting the energy from these molecules.

Combustion is the process of burning something.

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What is energy not used for?

1. Building new cells
2. Movement
3. Heat
4. none of the answers.

How much energy is passed onto each trophic level in a foodweb?

1. 5%
2. 10%
3. 50%
4. 90%

What is not a nutrient you need for energy?

1. carbohydrates
2. proteins
3. lipids (fats)
4. sugars

What is the most correct explanation of the key word respiration?

1. breathing
2. the absorption of energy from cells
3. the release of energy in cells
4. combustion

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Aerobic respiration

Aerobic respiration is combustion with oxygen 

The formula is:

glucose + oxygen → carbon dioxide + water + energy 

Do you remember the chemical formulas for these substances?

TB P.76-77

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Anaerobic respiration

Anaerobic respiration is combustion without oxygen in our muscles

The formula is:

glucose → lactic acid + energy 

Do you remember the chemical formulas for these substances?

TB P.76-77

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Anaerobic respiration

Anaerobic respiration has disadvantages:

• It gives you far less energy.
• It creates lactic acid , which can cause cramps.
• It creates an oxygen debt.

After exercising you will still breathe hard (panting), this extra oxygen is needed to break down the lactic acid built up in your muscles. This is called oxygen debt

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Which type of respiration releases more energy?

1. aerobic
2. anaerobic

Which type of respiration creates lactic acid?

1. aerobic
2. anaerobic

Which type of respiration is far more efficient?

1. aerobic
2. anaerobic

Where does the glucose being used come from?

1. proteins
2. fats
3. vitamins
4. carbohydrates

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Fermentation

Fermentation is anaerobic respiration that takes place in 

plants, fungi & bacteria.

The formula is: 

glucose → alcohol + carbon dioxide + energy

This type of respiration is used to make beer and wine. But also foods like bread, yogurt and sauerkraut.

TB P.76-77

iubioub

Summary of the Day:

• I now know ..............
• I understand ...............
• I can explain .................

TB P.76-77

iubioub

HW Time

• Review your notes.
• Study the glossary.
• Do the exercises. 

TB P.76-81

On magister:

• Read and highlight §2.5
• make sure the exercises of §2.4 are completed in your textbook
• Study the glossary of §2.4
• Prepare for an entry ticket 

Which homework exercise would you like to do together?

36

38

40

42

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HW Time

• Review your notes.
• Study the glossary.
• Do the exercises. 

TB P.76-81

On magister:

• Read and highlight §2.5
• make sure the exercises of §2.4 are completed in your textbook
• Study the glossary of §2.4
• Prepare for an entry ticket 

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What did we do today:

• Entry ticket
• Hw check
• Notes about?
• Hw start

TB P.76-81