The Cell: The BasicUnit of Life

OrganismAnything that is

living

Dogs , cats birds,Insects, moss, trees, bacteria

Needs energy, materials from the environment, &

living space.Grows, develops, responds to environment, reproduces

and has cells.

Rocks, water, dirt

4 Characteristics of

Living Things

Grows and Develops

Reproduces

OrganizationResponds to the

Environment

Needs of Living Things1. Energy

2. Materials

3. Living Space

Almost all of this energy comes form the sun.

Bacteria

Animals must eat other animals or plantlife for energy.

Food gives animals the energy to grow and reproduce.

They need living space for protection from predators

If any of these three thing were missing…

…the organism will die.

Multi-cellular/UnicellularXXXXXXX

XXXXXDefinition Example

Unicellular

Multi-celluar

They consist of ONE cell only.

They are made of many

ce l ls .

Bacteria & pondorganisms

Frogs & the water lily is only

scratching the Surface.

Cells were far too smallto be seen prior to the invention of themicroscope.

Robert Hooke gavethe cell its namewhile using the microscope. He was looking at cork under A microscope

He was one of the first to describe the cell. He thought they looked like miniature animals callingthem “animalcules”.

1. Every living is made of one or more cells.

2. Cells carry out the functions neededto support life.

3. Cells come from only other living things.

It is a widely accepted explanation of things observed in nature.

He was a French scientist who showed the Practical use of the cell theory.

HOW?

He observed (through a microscope) that harmful bacteria was growing in milk causing it to spoil. He created a process (Pasteurization) that killed off thisbacteria making milk safe to drink.

Bacteria grew from non-living things.

1. Two flasks of broth-One is sealed, the other seal is broken.

2. Let them sit for several days.

3. Sealed Flask is unchanged Unsealed flask becomes cloudy because of bacteria growth.

4. Conclusion- The broth in the unsealed Container clouded because bacteria from the Surroundings was able to get into the broth and grow.

Boys vs Girls

A. BoysB. Girls

BoysGirl

s

42%

58%

Which pair is NOT a characteristic of all living things?

11%

0%

74%

16% 1. Growing and response to the environment.

2. reproducing and DNA3. Growing and Organized4. Reproducing and response to the

environment

Team ScoresPoints Team Points Team75 Girls72.73 Boys

Which is an example of a unicellular organism?

84%

5%

5%

5% 1. Virus2. Water lily3. Fly4. Bacteria

Team ScoresPoints Team Points Team162.5 Girls154.55 Boys

Who named the cell?

0%

79%

21%

0% 1. Pasteur2. Van Leeuwenhoek3. Hooke4. Watson

Team ScoresPoints Team Points Team250 Girls227.27 Boys

Where does most of the energy needed by organisms come from?

0%

5%

89%

5% 1. Plants2. The Sun3. Plants and Animals4. Animals

Team ScoresPoints Team Points Team350 Girls309.09 Boys

Where do animals get their energy?

11%

58%

5%

26% 1. Plants2. Other animals3. Plants and animals4. water

Team ScoresPoints Team Points Team400 Girls372.73 Boys

Spontaneous generation is…

32%

47%

16%

5%1. Life created from other living

things.2. Non-living things creating other

non-living things.3. Non-living things creating living

things.4. Living things creating non-living

things.

Team ScoresPoints Team Points Team462.5 Girls409.09 Boys

A scientific _____ is widely accepted explanation of things

observed in nature.

0%

0%

95%

5% 1. Law2. Theory3. Hypothesis4. Educated guess

Team ScoresPoints Team Points Team562.5 Girls500 Boys

Who proved spontaneous generation as untrue?

17%

17%

8%

58% 1. Pasteur2. Hooke3. Van Leeuwenhoek4. Crick

Team ScoresPoints Team Points Team622.5 Girls557.14 Boys

Team MVPPoints Team Participant800 Boys Arnold, Austin Jarred700 Girls Markawicz Weaver, Na...