Life Under the Microscope Objective: To determine how living things are organized. Bell work: What is another name for a living thing? Organism © Getting.

Life Under the Microscope

Objective: To determine how living things are organized.

Bell work: What is another name for a living thing?

Organism

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Take a few minutes to read the passage “Life

under the Microscope.”When complete, find

the correct term for the definitions on your

sheet. Remember to use good reading

strategies as you read!

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Levels of OrganizationLet’s learn about how living things are

organized…

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Muscle Cells

Bone Cells

Fat Cells

Connective Tissue Cell

Gland Cells

Red Blood Cells

Skin Cell

Cartilage Cells

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CellSmallest working unit that

serves a specific job or function. Some may live

alone, like bacteria which are unicellular

How does the shape of each cell relate to its function?

TissueMade of several cells similar in structure & function

that work together to perform a specific jobHumans have FOUR basic tissues: connective (fat, cartilage, bone,

blood); epithelial (skin), nervous and muscular

Several bone cells make up a tissue…

Wait! Not THAT kind of tissue!

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Cardiac Muscle

Epithelial Tissue

Striated Muscle

Smooth Muscle

Tissues of the

Human Body

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OrganMade of similar tissues that work together to perform a

specific activity

What other organs can you think of?

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Organ SystemGroups of one or more organs working together

to perform functions for the organism.Our human body has 11 organ systems. Can you name them?

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OrganismEntire living thing that carries out all basic life

functions. Meaning… it’s made of cells, shares similar chemicals,

can take in and use energy, grow & develop, reproduce, and sense & respond to the environment. Most organisms are made up of many cells but some

consist of only one cell such as bacteria.

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Let’s create the levels of organization for a frog. Each level must build upon the previous level. For example,

if you draw a cardiac muscle cell, then you should draw cardiac muscle tissue, a heart, & the

cardiovascular system.Cellular level (muscle cell)

Organ level (heart)

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Tissue level (muscle tissue)

Organism level (consisting of many

organ systems)Organ system level (cardiovascular system)

Let’s CHANT about the Levels of Organization!Clap your hands everybody, and everybody clap your

hands! We’re gonna chant about the cell, and everybody YELL…

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WHAT!?Teachers, be sure to turn up your volume for this slide!

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Now it’s your turn…In each circle, draw a

colorful picture to match the specific

level. For example, in the circle labeled

“cell”, draw a picture of a specific type of

cell you might find in a squirrel.

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