LIVING ORGANISMS Single cell unicellular vs Multicellular What

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LIVING ORGANISMS Single cell (unicellular) vs. Multicellular

LIVING ORGANISMS Single cell (unicellular) vs. Multicellular

What is an Organism? ■ Anything that is living

What is an Organism? ■ Anything that is living

Examples of Organisms ■ Bacteria ■ Fungi ■ Algae ■ Plants ■ Animals Fungi

Examples of Organisms ■ Bacteria ■ Fungi ■ Algae ■ Plants ■ Animals Fungi Algae

What is a Cell? ■ A cell is that smallest unit of life that

What is a Cell? ■ A cell is that smallest unit of life that is a living thing ■ All living things are made up of cells

Do all living things have the same amount of cells?

Do all living things have the same amount of cells?

Two Types of Organisms Unicellular (single- celled) Multicellular – Body is made up of

Two Types of Organisms Unicellular (single- celled) Multicellular – Body is made up of only one cell - Body is made up of multiple cells (more than one)

Characteristics of a Cell… ■ Grow ■ Move ■ Reproduce ■ Respiration (breathing/ gas

Characteristics of a Cell… ■ Grow ■ Move ■ Reproduce ■ Respiration (breathing/ gas exchange) ■ Nutrition (find food for energy) ■ Excretion (get rid of wastes) ■ Respond adapt to their environment

Unicellular Organism ■ Made of ONE cell ■ Can survive as a single cell

Unicellular Organism ■ Made of ONE cell ■ Can survive as a single cell ■ Performs all life processes WITHIN it ■ Takes in materials directly from surrounding ■ Materials move freely around the cell

Multicellular Organisms ■ Made of MORE THAN one cell ■ Cannot survive as a

Multicellular Organisms ■ Made of MORE THAN one cell ■ Cannot survive as a single cell ■ Have differentiated cells that specialize to perform life functions ■ Have transport systems to move different materials throughout the body

Difference in specialization Unicellular (Single-celled) Organism Multicellular Organism - Different cells are specialized -

Difference in specialization Unicellular (Single-celled) Organism Multicellular Organism - Different cells are specialized - A single cell carries out all the life to perform different functions processes

Exposure to Environment Around Them Unicellular (Single-celled) Organism - Exposed (touches) the external environment

Exposure to Environment Around Them Unicellular (Single-celled) Organism - Exposed (touches) the external environment on all sides Multicellular Organism ONLY the outer cells, or surface cells, are specialized to face the environment. Inner cells have other functions

What if they are Injured? Unicellular (Single-celled) Organism - An injury to a single

What if they are Injured? Unicellular (Single-celled) Organism - An injury to a single cell can cause death of the organism Multicellular Organism Injury or death of cell can be replaced by a new one

Sizes Unicellular (Single-celled) Organism - Cannot get to a large size because of the

Sizes Unicellular (Single-celled) Organism - Cannot get to a large size because of the limit of surface area to volume ratio Multicellular Organism Multicellular body can become a large size by increasing the number of small cells

Lifespan Unicellular (Single-celled) Organism Short -Due to heave work load Multicellular Organism Long -Due

Lifespan Unicellular (Single-celled) Organism Short -Due to heave work load Multicellular Organism Long -Due to limited work load of each cell

Unicellular and Multicellular Organisms Unicellular Organisms Unicellular organismUnicellular and Multicellular Organisms Unicellular Organisms Unicellular organism
Unicellular vs Multicellular Organisms Unicellular vs Multicellular OrganismsUnicellular vs Multicellular Organisms Unicellular vs Multicellular Organisms
Unicellular VS Multicellular Life Unicellular onecelled organisms MulticellularUnicellular VS Multicellular Life Unicellular onecelled organisms Multicellular
Unicellular Organisms Unicellular Organisms Definition Unicellular organism anUnicellular Organisms Unicellular Organisms Definition Unicellular organism an
Unicellular and Multicellular Organisms Unicellular Organisms Most areUnicellular and Multicellular Organisms Unicellular Organisms Most are
Unicellular and Multicellular Organisms Cells Unicellular Organisms BacteriaUnicellular and Multicellular Organisms Cells Unicellular Organisms Bacteria
Unicellular and Multicellular Unicellular and Multicellular Video httpsUnicellular and Multicellular Unicellular and Multicellular Video https
Types of Organisms Unicellular Organisms vs Multicellular OrganismsTypes of Organisms Unicellular Organisms vs Multicellular Organisms
Types of Organisms Unicellular Organisms vs Multicellular OrganismsTypes of Organisms Unicellular Organisms vs Multicellular Organisms
Types of Organisms Unicellular Organisms vs Multicellular OrganismsTypes of Organisms Unicellular Organisms vs Multicellular Organisms
Cell Communication Multicellular Organisms Many multicellular organisms haveCell Communication Multicellular Organisms Many multicellular organisms have
Explain why unicellular organisms divide Unicellular organisms divideExplain why unicellular organisms divide Unicellular organisms divide
Unicellular Organisms Objective 1 2 Identify unicellular organismsUnicellular Organisms Objective 1 2 Identify unicellular organisms
Chapter 2 2 2 Unicellular Organisms Unicellular OrganismsChapter 2 2 2 Unicellular Organisms Unicellular Organisms