LESSON 4

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

HAVE READY:

- GOOGLE CLASSROOM

- YOUR IBOOK OPEN ON SECTION 6

- YOUR NOTES

- LESSON UP

BIOLOGY LESSON 6

Categories:

- prokaryotes - unicellular organisms that do not have a nucleus, these are usually bacteria.

- eukaryotes - organisms unicellular and multi-cellular organisms that do have a nucleus.

Organelles:

- The little parts of a cell that help the cell to do it's job properly.

- Cells have organelles just like we have organs.

CELL MEMBRANE

a flexible wall around cells that holds everything together and controls what goes in and out of the cell

CELLULOSE CELL WALL

a strong wall all around the cell membrane that supports the cell structure

RIBOSOMES

organelles that help to build proteins within cells

NUCLEUS

the brain / controller of a cell, this also contains the DNA

VACUOLE

a waterballon inside a cell that can contain nutrients and colours

CYTOPLASM

the filling of the cell, this is made of water with nutrients diluted in it

MITOCHONDRION

little chemical engines in cells that help the cells to burn energy

CHLOROPLAST

little green balls in the plant cells that can do photosynthesis

What is the brain of the cell?

1. cell membrane
2. cell wall
3. nucleus
4. cytoplasm

What is the strong support of the plant cell?

1. cell membrane
2. cell wall
3. nucleus
4. cytoplasm

What is the water balloon inside of the plant cell?

1. cell membrane
2. cell wall
3. nucleus
4. vacuole

What is the wall that controls what goes in and out of the cell?

1. cell membrane
2. cell wall
3. nucleus
4. vacuole

What is the jelly filling of the cell?

1. chloroplasts
2. cytoplasm
3. nucleus
4. vacuole

Which organelles burn energy in the cell?

1. chloroplasts
2. cytoplasm
3. ribossomes
4. mitochondrion

Which organelles build proteins in the cell?

1. chloroplasts
2. cytoplasm
3. ribossomes
4. mitochondrion