Lesson 3

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

Let's get started!

• Upload your homework to Google Classroom - 'Homework for lesson 3' (don't forget to press the button saying you're done, if you're having trouble come see me)
• Open your homework document
• Open the iBook to section 3
• Log in to LessonUp 
• Open your Biology notes

Today

• Discuss homework
• Levels of organisation in biology
• Time to work on homework

What is the smallest thing your body consists of?

Cells

• An organism can be unicellular (1 cell) or multicellular (more cells)
• Atoms - molecules - cells
• Cell is the smallest thing that can do all 7 life processes

Give an example of an unicellular organism and of a multicellular organism.

All living things are made of cells.

1. True
2. False

Tissue

Cells with the same shape en function form a tissue, such as muscle tissue, fat tissue or bone tissue

Organs

• Group of tissues joined as a unit to perform a funtion
  
• For example stomach stores and breaks down food. Skin protects against heat, cold, bacteria

Organs contain many cells and tissues

1. True
2. False

Organ system

• Group of specialised organs working together
• Examples are: digestive system, circulatory system, nervous system, reproductive system, respiratory system, skeletal system

Unicellular organisms have organ systems.

1. True
2. False

Many organ systems together form an organism.

1. True
2. False

And now...

• Start working on the homework for the next lesson, open the worksheet on Google Classroom and write your answers in a new document that you will upload to the assignment on Google Classroom
  
• You are allowed to work together - quietly. This means whispering.
• You are allowed to work with headphones on, as long as your neighbour cannot hear your music.

What have we learned today?