2.3 Tissues

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

Planning

- Repeat the organs, organ systems and cells

- Organ donors

- Tissues

- Make some assignments

And open your laptop + add yourself to the lessonup 

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Muscular

Skeletal

Respiratory

Nervous

Digestive

Urinary

Circulatory

Reproductive

ORGAN

ORGANISM

ORGAN SYSTEM

Cells & Organelles:

Cells & Organelles:

• Animal cells and plant cells

ANIMAL CELLS: NUCLEUS, CYTOPLASM, CELL MEMBRANE

PLANT CELLS: NUCLEUS, CYTOPLASM, CELL MEMBRANE, CELL WALL, CHLOROPLASTS & VACUOLE

Cells & Organelles:

• NUCLEUS: The brain of the cell, contains DNA.
• CYTOPLASM: The jelly filling of cell, contains water and nutrients.
• CELL MEMBRANE: The soft flexible wall around a cell, controls what goes in and out.
• CELL WALL: A hard outer wall made of cellulose, it for protection and support.
• CHLOROPLASTS:Little green balls in cells that can do photosynthesis.
• VACUOLE: An extra balloon in a cell that can contain nutrients or colours.

Why do we need a microscope?

Leaf tissue

LET'S DISCUSS ORGAN TRANSPLANTS

• What is donor transplantation?
  
  
  
• Why do we need donors?

• Do you want to be a donor? Why (not)?

Tissues

Learning goals 2.3

• You can describe and explain the following terms: tissue and cell.
  
  
• You can name the 4 tissue types and recognize them in a picture. 
  
  
• You can describe the functions of the 4 tissue types. 
  
  
• You can describe the difference between a single-celled organism and a multicellular organism. 

2.3 Tissues - important words

Cells = the building blocks of an organism

Tissue = a group of cells with the same shape and function

Extracellular material = a liquid or solid substance in between the cells 

                    Examples 

Epithelial tissue

Cells that provide a covering (on the skin or surfaces inside your body, like lungs or intestines) 

Muscle tissue

Muscle cells that can contract. 

Found in your muscles, but also in your heart 

and in your organs. 

Connective tissue

Supports other tissues and binds them together. 

For example:

- Bone tissue 

- Cartilage tissue

- Blood vessels

- Lymfe tissue

Nerve tissue

Made from nerve cells that send and receive messages

Found in your brain, spinal cord & nerves 

Bone tissue

Made with a strong extracellular material

Found in your bones

Cartilage tissue (kraakbeen)

Made with a flexibel extracellular material

Found in your ears, tip of your nose and between the spinal column

Which organ system is made up of nerve tissue?

Answer the following questions:

• Which organ system is made up of nerve tissue? 
• Which organs are made up of muscle tissue? 
• What is de difference between bone tissue and cartilage tissue?
• Do single-celled organisms also have tissues? Explain your answer. 

Learning goals 2.3

• You can describe and explain the following terms: tissue and cell.
  
  
• You can name the tissue types and recognize them in a picture. 
  
  
• You can describe the functions of the tissue types. 
  
  
• You can describe the difference between a single-celled organism and a multicellular organism. 

Get to work - 2.3 Tissues 

Make assignment 1, 2, 6, 7, 8, 10

Next hour: 

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