Cells

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

Welcome everyone!

Today: 

Discussing exercises paragraph 2.2, page 98

Explanation about cells, paragraph 2.4

Making exercises paragraph 2.4

 

What are we going to learn today?

We are going to learn:

What a cell is.

What a cell consists of. 

What a organelle is and what the functions of those are. 

What photosynthesis and respiration is. 

What are cells?

Cells are the smallest unit of life. The express all the life processes. Cells are the building blocks of life. There are different kind of cells in our body. 

What do cells consist of?

There are a lot of different processes going on in cells. That's why a cell consist of different ''organs'' as well. We call them organelles. 

Organelles

Cell membrane

Thin layer that envelops the cell and keeps it together. It also transport substances in and out of the cell. 

Cytoplasm 

The liquid inside a cell. 

Cell wall 

Thicker wall around the cell that keeps it sturdy and protects it. 

Nucleus 

Core of the cell where the genetic material is stored (DNA)

Organelles

Chloroplast

Photosynthesis takes place in this part: it takes sunlight and CO2, and makes food out of it. 

Vacuole

An extra reservoir for water and/or waste in a cell. 

Animal cell 

Plant cell

Different cells; different organelles

Get to work!

The homework for next lesson will be the exercises of paragraph 2.4, including the summary and plus exercise. 

You also need to study the parts of a cell. 

What cell is this?

What cell is this?

What cell is this?

What cell is this?

What cell is this?