1.6 1HVTTO

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 2

1.6 The energy cycle of life

• Jacket in your locker
• Put your things on your desk

       Laptop/Book

       Notebook, pencil case

• Bag on the floor
  
• Read pages 23-24

Lessongoals

• You can explain what happens during photosynthesis and respiration
• You understand how these 2 processes influence each other
• You can describe how each process is necessary for organisms

Homework 1.6

Asgmt 46-50 

wb pgs 20

Wheel of homework

Go to Lessonup.app and use this code

Reward

Penalty

Rewards

• +1 cm2 cheatsheet = you get to make a cheatsheet for a test. This starts being 1 by 1 cm. Everytime you earn this it gets 1 cm bigger to a max of 4 by 4 cm.
• 1/3 +0.5 = If you earn this 3 times you get to add 0,5 to one of your biology marks.
• Snitch = You can pick a classmate who also is checked for homework, you earn two V's (having 3 earns you a 1/3 +0,5)
• Too bad = You only get one V
  

penalties

• 45 min extra worktime = you need to come after school and do homework, this will last for 45 min or until the task is done
• Coloringpage = You get to pick a coloringpage, You need to color it and perform tasks that might be on it. You need to hand it in during the next lesson, If you don't you get 2 marks.
• 2/1 marks = a mark is an X, if you get 3 of these you will automaticly earn the 45 min extra worktime.
• Snitch = You can pick a classmate who also is checked for homework
• Lucky! = You don't get a penalty

A person is walking their dog.
The dog pees.
This is an example of

1. Movement
2. Respiration
3. Sensitivity
4. Excretion

In what organelle is food turned into energy? (1 word)

Which is the smallest level of organisation, where all 7 characteristics of life are still present?

1. Tissue
2. Cell
3. Molecule
4. Organelle

Which of these organelles is only found in plant cells?

1. Chloroplast
2. Nucleus
3. Mitochondrion
4. Cell wall

Photosynthesis

Water + carbon dioxide + sunlight -> glucose + oxygen

H₂O + CO₂ + sunlight -> C₆H₁₂O₆ + O₂

oxygen

carbon dioxide

sunlight

Plants take up water using their roots. This is then tranported via the stems to green parts (mainly the leaves) of the plant where photosynthesis can happen

Carbon dioxide is a gas in the air. Plants can 'inhale' this into their bodies, allowing them to use it for photosynthesis

When the sun shines, plants can use the energy in it to perform photosynthesis

Oxygen is also created during photosynthesis. The plant releases this into the air, filling it with oxygen

The 3 words in front of the arrow are the ingredients needed for photosynthesis.

The 2 words after the arrow are the result of photosynthesis.

The arrow is important, it shows that a chemical reaction is taking place.

In science, many substances have an abbreviation. It's easier to use these than writing the word:

H2O = water

CO2 = carbon dioxide

C6H12O6 = glucose (but you don't need to remember this one

O2 = oxygen

glucose

Glucose (a type of sugar) is created during photosynthesis. It is an energy rich substance that the plant uses as its food

Photosynthesis happens in the chloroplasts of plant cells.

Cellular respiration

Turning food into energy

Glucose + Oxygen (O2) -> Water(H2O) + Carbon dioxide (CO2) + Energy

                                        

• Moving
• Bodyheat
• Growth
• etc.

Respiration happens inside the mitochondrion, a specialised organelle for this task.

Bacteria can do this without the need for mitochondria

The food organisms consume contains glucose. This glucose is used by mitochondria to perform respiration

The air organisms breathe contains oxygen (this is the entire reasons you need to breathe), this oxygen is used in mitochondria to perform respiration

During respiration CO2 and H2O are created, these become a waste product. When organisms breathe, these gases are exhaled

The main reason for respiration is energy. This energy is then used for many different processes, nearly everything an organism does needs energy

Think-Pair-Share

• Think: Work on the assignment on your own.
• Compare photosynthesis and respiration, write down your findings

• Pair: Discuss and compare with your neighbour, improve your answer
• Share: Talk about given answers during plenary session.

Photosynthesis 

Energy from sunlight is put into glucose

Respiration

Energy from sunlight is released from glucose

oxygen

carbon dioxide

Photosynthesis and respiration are opposite reactions. 

Oxygen and carbon dioxide are constantly changed into each other because of these two processes.

Respiration would be impossible without photosynthesis

What you should do: 1.6

• Read tb pages 23-24
• Asgmt  46-50 wb pgs 20

Done with the above?

• Work on the next chapter(s)
• Learn for the test 
• Make other homework
• Read a book

Zs = Working in Silence

• No asking questions
• Silent, don't disturb anyone
  
• Stay at your  desk

What you should do: T B

• Read tb pages 23-24
• Asgmt 46-50 wb pgs 20

Done with the above?

• Work on the next chapter(s)
• Learn for the test 
• Make other homework
• Read a book

Zw = Working with whispering

• Teacher is available for questions
• Only whisper with the student next to you
• Stay at your  desk

Tidy Duty

3 people each lesson

• Desks: empty and straight
• Chairs:  underneath the desks OR end of day: on the desks
• Floor: no rubbish