3.1 smaller and smaller groups

• Biologie
• Middelbare school
• vmbo t, mavo, havo
• Leerjaar 1

Thema 3: Ordening

Basisstof 1:

Steeds kleinere groepen

vmbo-t/havo

start task

• Which cell parts do you still remember? Write them down briefly!
• What is the main difference between a plant cell and an animal cell?

Time left? Copy the following learning objectives into your notebook (p 246):

3.1.1 You can classify organisms into domains and kingdoms.

3.1.2 You can list the features of animal, plant, fungal and bacterial cells.

start task

opdr 1 

blz 174

Today

What do you still remember?

Explanation of section 1

Work time

Review learning objectives / wrap-up

Homework for next week

learning objectives

3.1.1 You can classify organisms into domains and kingdoms.

3.1.2 You can list the features of animal, plant, fungal and bacterial cells.

Hoe vind jij dat biologie gaat voor jou op een schaal van 1 tot 10? (1 heel slecht, 10 super goed)

1

2

3

4

5

6

7

8

9

10

Wat heb je nodig om de stof beter te begrijpen?

A bit of review

unit 1 & unit 2

What is an organism?

Which part of the cell controls everything?

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

A fungus is an organism.

1. true
2. false

Every cell has a cell wall

1. true
2. false

Name an example of a characteristic of life.

Explanation of section 1

zuidschrift + pen at hand

goals

• You can classify organisms into main groups and kingdoms.

• You can name the cellular characteristics of animals, plants, fungi, and bacteria.

making groups

We can divide organisms into groups based on features (kenmerken) , which are traits used to distinguish between organisms.

main groups

We can divide organisms into two main groups: prokaryotes and eukaryotes. Prokaryotes are small, single-celled organisms without a nucleus, while eukaryotes are large, single-celled or multicellular organisms with a nucleus.

main groups

We can divide organisms into two main groups: prokaryotes and eukaryotes. Prokaryotes are small, single-celled organisms without a nucleus, while eukaryotes are large, single-celled or multicellular organisms with a nucleus.

main groups

no (nucleus) - prokaryote

yes (nucleus) - eukaryote

kingdoms

The main groups can be further divided into kingdoms.

Prokaryotes are divided into two kingdoms: Bacteria and Archaea.

Eukaryotes can be divided into five kingdoms: Chromista, Protozoa, Fungi, Plants, and Animals.

To which main group do humans belong?

1. Prokaryotes
2. Eukaryotes

In which kingdom do humans belong, according to biologists?

1. Plants
2. Bacteria
3. Animals
4. Fungi

cell characteristics prokaryotes

Bacteria

Celkenmerken eukaryoten: chromista

Celkenmerken eukaryoten: Protozoa

cell characteristics eukaryotes

Fungi

cell characteristics eukaryotes

plants

cell characteristics eukaryotes

animals

Which main group has nuclei?

1. Eukaryotes
2. Prokaryotes

Alleen celwand,

altijd ééncellig

Celkern en celwand

Celkern, celwand en bladgroenkorrels

Alleen celern

Kun je 2 celonderdelen noemen die alle cellen hebben?

cell characteristics

• Nucleus: The cells of eukaryotes have a nucleus. The cells of prokaryotes do not. Bacteria and archaea are organisms without a nucleus.
• Cell wall: Animals do not have a cell wall around their cells. The cells of bacteria, archaea, fungi, and plants do have a cell wall.
• Chloroplasts: Many plant cells have chloroplasts in their cytoplasm. Bacteria, archaea, fungi, and animals do not have chloroplasts.

branching tree

Welke groep ontstaat er na de groep 'families'?

1. rijken
2. soorten
3. orden
4. geslachten

work independently

1. read bs1 (p 166-160) (many pictures)

2. do assigments: 2, 3 en 4 (p 171 -172) 

word list:

• classification
• feature
• unicellular
• multicellular
• to consist of

Time left?

Copy the word list into your zuidschrift.

Find the definitions yourself in the book or using the internet.

Next: quick quiz in LessonUp.

animal

Plant

fungus

Bacterium

What type of cell is it?
You look through a microscope and see:
no nucleus.

1. bacteria
2. fungi
3. plant
4. animal

What type of cell is it?
You look through a microscope and see:
no nucleus.

1. bacteria
2. fungi
3. plant
4. animal

Leerdoelen check

Quizje in lesson-up

Which organisms do not have a nucleus?

1. Eukaryotes
2. Prokaryotes

Welke groep komt er na de groep 'klassen'?

1. Soorten
2. Geslachten
3. Stammen
4. Orden

Which kingdom does not belong to the eukaryotes?

1. animals
2. plants
3. bacteria
4. fungi

Fungal cells have a cell wall.

1. true
2. false

homework

• finish asg 2, 3 en 4
• make word list

Plant or animal?

The North American sea slug is green in colour and resembles a plant. The green colour, like in plants, is caused by chloroplasts. This is unique for an organism without cell walls around its cells. American researchers discovered that the sea slug absorbs chloroplasts from the cells of a specific seaweed species at a young age. The chloroplasts end up in some of the slug's cells. So, not all cells of the slug contain chloroplasts.

If young sea slugs absorb chloroplasts for two weeks, they no longer need to eat for the rest of their lives. The sea slugs are only found in the upper half-metre of the sea.