Chapter 16 section 1 the world of cells
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Chapter 16: Section 1 The World of Cells PowerPoint PPT Presentation


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Chapter 16: Section 1 The World of Cells. Why are cells important ?. They help us do what we do Breakdown food Move Grow Reproduce. Bacteria. Smallest organisms on Earth Made of only one cell. Larger Organisms. Made of many cells. Cells have jobs.

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Chapter 16: Section 1 The World of Cells

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Chapter 16: Section 1The World of Cells


Why are cells important?

  • They help us do what we do

    • Breakdown food

    • Move

    • Grow

    • Reproduce


Bacteria

  • Smallest organisms on Earth

  • Made of only one cell


Larger Organisms

  • Made of many cells


Cells have jobs

Some help move things around the organism

Some fight disease


What are cells made of?

  • A cell is like a bakery

Many parts doing different jobs


Organelles

  • Each does a different job

  • In the bakery: the employees


Cell membrane

  • Holds cell together

  • Is a boundary

  • Plants also have cell wall for support and protection

In bakery: the walls


Cytoplasm

  • Like Jello/Where activities take place

  • In Bakery: The kitchen


NucleusVacuoles

Contains chromosomes (plan for cell)

In Bakery: the boss

stores food, waste

In bakery: fridge, pantry, trash can


Mitochondria

Where cellular respiration happens

Food energy turned into energy cell can use

In the bakery: the oven


PhotosynthesisChloroplasts

Makes food for cell

Occurs in leaf cells

Makes leaves green


Some cool cell models


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