Starter quiz
- What are all living organisms are made of?
- blood
- cells ✓
- organs
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- Most cells are too small to see so a ______ must be used to magnify them.
- 'light microscope' ✓
- Match these key words to their definition
- Magnification⇔Make an object bigger ✓
- Focus⇔Make an object clearer ✓
- Lens⇔Glass that magnifies and focuses an image ✓
- Which two of these descriptions would be used for a good scientific line drawing?
- Smooth continuous lines ✓
- Sketched lines
- Shaded
- Labelled ✓
-
- Choose two of the processes that all living organisms carry out at some stage in their life cycle
- Breathing
- Movement ✓
- Thinking
- Nutrition ✓
- Chewing
-
- Name the process that all living organisms carry out to provide cells with energy.
- 'respiration' ✓
Exit quiz
- A scientific drawing of a cell is what type of model
- 2D model ✓
- 3D model
-
- Choose the structure which is not found in an animal cell
- nucleus
- mitochondria
- cell membrane
- brain ✓
- cytoplasm
-
- Match the cell structure to a description of its job
- nucleus⇔contains DNA and controls the activities of the cell ✓
- mitochondria⇔provides energy for the cells activities. ✓
- cell membrane⇔controls what substances enter and leave the cell ✓
- cytoplasm⇔where the chemical reactions of the cell take place ✓
- The mitochondria carry out the process of ______ to provide the cell with energy for its activities
- 'respiration' ✓
- Choose the correct explanation of why models are used in science
- to make complex ideas prettier to look at
- to explain all ideas using a 3D model
- to explain ideas that are hard to see or understand ✓
- to add more detail to simple ideas
-
- The key word used to summarise the strengths and weaknesses of a model is ______
- 'evaluation' ✓
Worksheet
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Presentation
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Video
Lesson Details
Key learning points
- Cells have a 3D shape (not 2D as they often appear in textbooks).
- Common structures of animal cells can be shown in diagrams.
- These structures include the cytoplasm, cell membrane, nucleus and mitochondria.
- Each structure in an animal cell has a specific function.
- Cells can be represented using 2D and 3D scientific models.
Common misconception
Cells are 2D (as they are often depicted in diagrams).
The lesson explores the 3D structure of cells, and the use of both 2D and 3D scientific models of animal cells.
Keywords
Cell membrane - The cell membrane surrounds the cell and controls what substances enter and leave the cell.
Cytoplasm - The cytoplasm is the jelly-like substance inside a cell where the chemical reactions of the cell take place.
Nucleus - The nucleus contains DNA, which stores information that controls the activities of the cell.
Mitochondria - Mitochondria use food and oxygen as fuel to provide energy for the cell in a process called cellular respiration.
Model - Scientists use models as simpler representations of complex things and ideas.
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