Cells
I can identify that all cells have some structures in common and I can explain that all organisms are unicellular or multicellular.
Cells
I can identify that all cells have some structures in common and I can explain that all organisms are unicellular or multicellular.
Lesson details
Key learning points
- All organisms (including animals, plants, fungi and micro-organisms) are made up of one or more living cells.
- All cells have some structures in common (cell membrane and cytoplasm) and have a three-dimensional shape.
- Chemical reactions essential to life occur in cytoplasm; the cell membrane regulates the cell’s internal environment.
- Many animals and plants are multicellular; they are made up of many cells organised to form tissues and organs.
- Micro-organisms such as bacteria are unicellular – they are made of just one cell.
Common misconception
Pupils may think that all animals and plant are multicellular and that all unicellular organisms are bacteria.
Lesson explicitly addresses this misconception and the questions in Task A are designed to expose the misconception.
Keywords
Organism - A living thing made of one or more cells.
Cell - The basic unit of all forms of life.
Multicellular - An organism made of many cells.
Micro-organism - An organism that can only be viewed through a microscope.
Unicellular - An organism that consists of a single cell.
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Video
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Starter quiz
6 Questions
Exit quiz
6 Questions
jelly-like substance where chemical reactions take place
contains DNA, which controls the cell activities
where energy is released through aerobic respiration
contains cellulose, which provides strength and support to cell
where protein synthesis occurs
controls what enters and exits the cell
contains sap which helps keep the cell turgid
contains chlorophyll, which is where photosynthesis occurs