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Learn: Cell Biology
AQA GCSE Biology 8461 specification
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Welcome!Today we'll learn about Cell Biology, including cell structure, microscopy, cell division, and transport mechanisms. Let's dive in step by step!
What is a Cell?Cells are the basic building blocks of all living organisms. They come in two main types: prokaryotic (simple cells like bacteria) and eukaryotic (complex cells like animal and plant cells). Each type has unique features and functions.
Which is true about prokaryotic cells?
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MicroscopyMicroscopes allow us to observe cells and their structures. Light microscopes are commonly used in schools, while electron microscopes provide much higher magnification and resolution, allowing us to see smaller details like organelles.
An electron microscope has a higher {{blank0}} and {{blank1}} compared to a light microscope.
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Cell DivisionCells divide through a process called mitosis, which produces two identical daughter cells. Mitosis is essential for growth, repair, and replacement of cells in the body.
Match the items on the left with their correct pairs on the right
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Transport MechanismsTransport mechanisms move substances in and out of cells. These include diffusion (movement from high to low concentration), osmosis (movement of water across a membrane), and active transport (movement against the concentration gradient, requiring energy).
Which of the following are examples of transport mechanisms? (Select all that apply)
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Review Time!Great work! You've learned about cell structure, microscopy, cell division, and transport mechanisms. Let's test your understanding with a few questions.
What happens in metaphase during mitosis?
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Diffusion moves substances from {{blank0}} concentration to {{blank1}} concentration.
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Match the items on the left with their correct pairs on the right
Start the lesson to answer this matching question
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