metabolism, combustion and respiration

• Biologie
• Middelbare school
• vwo
• Leerjaar 3

195 km in 4 days!

• From where comes the energy to swim four days long? 
• What is the role of the respiratory system? 

Agenda 

• Instruction basic 1 
• Summarize
• Homework questions 

Combustion and breathing Basic 1 metabolism 

                                                                                           Metabolism

                                                                                                    

After today you can..

• describe how plants use photosynthesis to store energy in glucose 
• explain that breaking down glucose release energy 

Remember from year 1? 

Draw a plant name the different functions of each part. 

Use: uptake of water and minerals,  transport of nutrients,  sugar production, transport of seeds, reproduction

Photosynthesis

• Water + CO2 + energy of the sun-> O2 + glucose  
• Glucose = sugar

• Converting substances into other substances is called metabolism

chloroplasts

• photosynthesis takes place inside the chloroplasts.
• inside there is a green pigment -> chlorophyll

Combustion

• Breakdown of glucose -> creates energy
• All cells and all species have mitochondria 
• More in muscles or more in skin?

Plant cells

Homework

• Basic 1 metabolism: 4 until 6 + 9
• Make 4 into your notebook

Metabolism 

• Conversion of substances in a cell into other substances 
• Glucose is formed during photosynthesis
•  During metabolism glucose is converted into different products 

The pathway of glucose

• Breakdown of substances = decomposition
• Breakdown of glucose = body respiration
• Energy release 

Welcome!

• Homework check
• Recap basic 1 
• Instruction basic 2 
• Homework 

Photosynthesis

• Water + CO2 + energy of the sun-> O2 + glucose  
• Glucose = sugar

• Converting substances into other substances is called metabolism

chloroplasts

• photosynthesis takes place inside the chloroplasts.
• inside there is a green pigment -> chlorophyll

Combustion

• Breakdown of glucose -> creates energy
• All cells and all species have mitochondria 
• More in muscles or more in skin?

What is metabolism?

1. Converting one substance into another
2. Breakdown of glucose
3. Burning reaction

Which species has mitochondria?

1. Plants
2. Animals
3. Bacteria and funghi
4. All of the above

After today you can...

•  explain that breaking down glucose release energy.

• explain how respiration works.

Energy

Combustion (= verbranding)

Specific form of combustion in our cells = cellular respiration / body respiration

Cellular respiration / body respiration: Glucose is broken down to energy and water

Body respiration

• Breakdown of glucose 
• Mitochondria inside cells 
• All cells, all species.
• Can plants perform body respiration during the night?

What do we need to burn something down?

Cellular respiration / body respiration

Glucose + oxygen -> water + carbondioxide + energy

Questions so far?

Draw the pathway of glucose

• Done? Make the homework:
  Unit 1

Basic 1: 1,3,6

Basic 2: 1,5,8