Classification at the cellular level | Science | Quizalize & Oak National Academy

Starter quiz

Which of these diagrams represents a single cell?
Which of the following do all cells have in common?
- nucleus
- cell membrane ✓
- cell wall
- mitochondria
DNA is stored in the ______ of an animal cell.
- 'nucleus' ✓
Match each cell type with the correct description.
- Bacteria cells
  
  ⇔
  
  Contain DNA that is loose in the cytoplasm. ✓
- Plant cells
  
  ⇔
  
  Contain chloroplasts. ✓
- All cells
  
  ⇔
  
  Have a cell membrane and cytoplasm. ✓
Use the classification key to classify a duckling.
- bird ✓
- mammal
- fish
Which of the following types of cells has a cell wall?
- plant cells ✓
- animal cells
- fungi cells ✓
- bacteria cells ✓

Which of these images represents a fungus cell?
- cell 1
- cell 2
- cell 3 ✓
- cell 4
True or false? Plant cells have a cell wall instead of a cell membrane.
- True
- False ✓
Bacterial cells do not have a ______. Their DNA is found in the cytoplasm.
- 'nucleus' ✓
Which one of these features would be most helpful when classifying an organism as a plant?
- colour
- whether it is unicellular or multicellular
- whether its cells have a large permanent vacuole ✓
Match the feature to the kingdom of organisms it is specific to.
- no nucleus (loose DNA)
  
  ⇔
  
  bacteria ✓
- chloroplasts
  
  ⇔
  
  plants ✓
- small vacuoles
  
  ⇔
  
  fungi ✓
- no cell wall
  
  ⇔
  
  animals ✓
According to the classification key, what are the features of a fungus cell?
- It can make its own food.
- It has a cell wall. ✓
- It has a nucleus. ✓
- It has a large permanent vacuole.

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Organisms can be classified into groups based on their characteristics at the microscopic, cellular level.
The common features of the cells of animals, plants, fungi and bacteria.
Use of cell features to classify organisms into the kingdoms of animals, plants, fungi and bacteria.

Organisms are classified only according to their visible (macroscopic) features.

This lesson explores the classification of organisms into kingdoms based on the features of their cells.

Kingdom - A very large group of organisms with only a few features in common, such as all animals or all plants.
Animal - Organism made of cells that have a nucleus, but do not have a cell wall and cannot make their own food.
Plant - Organism made of cells that have a nucleus, a cell wall and can make their own food.
Fungus - Organism made of cells that have a nucleus and a cell wall, but cannot make their own food.
Bacterium - Organism made of a single cell that does not have a nucleus.