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Day 20

Onion Guinea Pig

What do an onion and a guinea pig have in common?

Both are made of cells.

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Prokarya & Eukarya

Contrasting Case Activity 4aInvestigation 4 – The Cell

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Cells Web

Cells

Copy this web into your notebook.

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Cells WebOn each branch of the web, list one thing you know about cells. It is okay to include ideas you're not sure about.

You will have a chance to revise your web at the end of this activity.

Basic Unit of Life• The cell is the basic unit of life.• Although living things may look very different, they are all made up of one or more cells.

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Prokaryotes

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Find these organisms in the Domain & Kingdom cards.

These are all Prokaryotes.

Record characteristics of these organisms in your notebook.

L. acidophilus

HalobacteriaFerroplasma

E. coli

Prokaryotic Cells

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Prokaryotic cells are simple and independent. All prokaryotes are single-celled organisms.

Prokaryotic cells do not have organized, membrane-bound internal structures such as a nucleus or other organelles.

Eukaryotes

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Find these organisms in the Domain & Kingdom cards.

These are all Eukaryotes.

Record characteristics of these organisms in your notebook.

AlgaeDestroying

Angel

BarnacleParamecium

Eukaryotic Cells

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Some eukaryotic cells can survive on their own as single-celled organisms.

Others are part of a multicellular organism and cannot survive on their own.

All eukaryotic cells have a nucleus and other membrane-bound organelles.

Prokaryotes vs. Eukaryotes

What do these two types of organisms have in common?

How are they different?

Use the Venn diagram to record similarities and differences.

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Prokaryotes & Eukaryotes

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don't have a nucleus

have a nucleus

made of one or more cells

domain Archaea

domain Bacteria

kingdom Animalia

kingdom Plantae

kingdom Fungi

kingdom Protista

can be unicellular or multicellular

all are unicellular

Prokaryotes EukaryotesBoth