CELLS

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The smallest unit capable of life! CELL S

description

CELLS. The smallest unit capable of life!. Types of Living Things. Single-celled : simple ; uni -cellular; bacteria and some protists (amoeba & algae). Multi-cellular : contain SPECIALIZED cells; some protists , animals, plants, fungi. - PowerPoint PPT Presentation

Transcript of CELLS

Page 1: CELLS

The smallest

unit capable

of life!

CELLS

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• Multi-cellular: contain SPECIALIZED cells; some protists, animals, plants, fungi

Types of Living Things• Single-celled: simple; uni-

cellular; bacteria and some protists (amoeba & algae)• Prokaryotic cell =

BACTERIA ONLY; no nucleus; small, simple, self-sustaining

• Eukaryotic cell = all other life; nucleus and other organelles; complex

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How Living Things Are Organized

living thing

NOTliving

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SPECIALIZATION• Different types of cells form

during your development and perform different jobs in your body• Differ in shape, size, function,

and life span• a.k.a. Differentiation

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1 nerve cells or neurons

carry "messages" through the

body

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2 & 3red blood cells

white blood cells

carry oxygen from lungs to

other body cells

defend body from disease

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4

muscle cellslengthen and

contract to allow for movement

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5skin cells

shield the internal body from germs; control water

loss

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6bone cellsform the

skeleton and support the

body

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Major Systems of the Human

Body

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CIRCULATORYSYSTEM

lymphaticsystem

cardiovascularsystem

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Comparing Organ Systems•Trachea

•Teeth and saliva•Arteries•Muscles•Ligaments•Veins•Lungs•Cartilage

•Stomach•Capillaries•Heart•Intestines•Bronchi•Esophagus•Bones•Blood