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CELLS

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.

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CELLS

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  1. CELLS The smallest unit capable of life!

  2. Types of Living Things • Single-celled: simple; uni-cellular; bacteriaand some protists (amoeba & algae) • Multi-cellular: contain SPECIALIZEDcells; some protists, animals, plants, fungi • Eukaryotic cell= all other life; nucleus and other organelles; complex • Prokaryotic cell = BACTERIA ONLY; no nucleus; small, simple, self-sustaining

  3. How Living Things Are Organized living thing NOT living

  4. 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

  5. 1 nerve cells or neurons carry "messages" through the body

  6. 2 & 3 red blood cells carry oxygen from lungs to other body cells white blood cells defend body from disease

  7. 4 muscle cells lengthen and contract to allow for movement

  8. 5 skin cells shield the internal body from germs; control water loss

  9. 6 bone cells form the skeleton and support the body

  10. Major Systems of the Human Body

  11. CIRCULATORY SYSTEM lymphatic system cardiovascular system

  12. Comparing Organ Systems Trachea Teeth and saliva Arteries Muscles Ligaments Veins Lungs Cartilage Stomach Capillaries Heart Intestines Bronchi Esophagus Bones Blood

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