Kingdom Protista
Single-celled eukaryotes of water and moist places.
Pond water
A drop of pond water holds many tiny single-celled living things that have a true nucleus.
Which kingdom would you expect them to belong to?
What this lesson covers
The idea
Kingdom Protista comprises microscopic single-celled eukaryotes, without a cell wall or with a cellulose cell wall, living in water or moist places; some are autotrophic and others heterotrophic.
Pond water
A drop of pond water holds many tiny single-celled living things that have a true nucleus.
Which kingdom would you expect them to belong to?
- Protista
- Monera
- Fungi
Does it fit Protista?
Tap the bin where each belongs.
A varied kingdom
Protists are microscopic and highly diverse. Some make their own food and others do not. In water they are an important link in food chains: some produce oxygen and others are food for small animals.
Kingdom Protista comprises microscopic single-celled eukaryotes, without a cell wall or with a cellulose cell wall, living in water or moist places; some are autotrophic and others heterotrophic.
Notes
Protista are microscopic single-celled eukaryotes of water or moist places, with no cell wall or a cellulose wall; some are autotrophic, others heterotrophic.
Check yourself
What are Protista?
What kind of cell wall can protists have?
Where do protists live?
How do protists get their food?
- Single-celled prokaryotes. Single-celled prokaryotes are grouped under Monera.
- Microscopic single-celled eukaryotes — correct. Yes!
- Large many-celled organisms. Protista are microscopic and single-celled.
- One made of chitin. Chitin cell walls are found in fungi.
- A thick wall always present. Protista are without a cell wall or have a cell wall made of cellulose.
- None, or one made of cellulose — correct. Yes!
- In water or moist places — correct. Yes!
- Only inside the human body. Protists live in water or moist places. The book says bacteria are present inside human bodies.
- In dry hot deserts only. The book says protists live in water or moist places.
- All of them make their own food. Some are autotrophic and others heterotrophic.
- Some make their own and others do not — correct. Yes!
- All of them depend on other organisms. Some are autotrophic and others heterotrophic.