Science 8 Discovering Science 8 Unit 4 “Cells, Tissues, Organs and Systems”

Chapter 10 The Cell Is The Basic Unit Of Life.

The Compound Microscope

Characteristics of Life All organisms: * 1.) grow * 2.) move – Change in place or position * 3.) respond to Stimuli * 4.) reproduce 5.) take in or produce their own food 6.) made-up of cells 7.) have a special chemical make-up

Cells Cells are the basic units of life Smaller unit of life Functional System

Cells The Cell Theory: 1.)The cell is the basic unit of life 2.)All living things are made up of one or more cells. 3.)All cells come from other living cells.

Mitosis Cell division in body (somatic) cells. Skin, bone, and other body cells divided to heal cut or injured cells. One cell divided into two new cells every four to five hours.

Meiosis Cell division in sex cells (Gametes)

Organelles: (p.405) Cell Wall Cell Membrane Chloroplast Cytoplasm Nucleus Vacuole Mitochondria

Plant Cells

Animal Cells

Differenced between Plant and Animal Cells 1.) Plant cells have chloroplasts. 2.) Plant cells have cell walls, therefore they have a regular shape. 3.) Plant cells have fewer, and larger, vacuoles.

Chapter 11 Human Body Cells Are Organized As Tissues, Organs, and Systems.

The Levels of Organization found in All Living Thing 1.)Cells - 2.)Tissue - 3.)Organs - 4.)Organ Systems - 5.)Organisms -

The Characteristics of Systems Made up of individual parts that work together as a whole. Often connected to one or more other systems If one part of the system is missing or damaged the whole system will not function well or not function at all.

Cells and Organisms Require The Same Basic Necessities of Life 1.)Oxygen 2.)Nutrients 3.)Waste Removal

Organ Systems continued Circulatory System - Respiratory System - Digestive System - Excretory System - Nervous System - Skeletal and Muscular System - ext=1&index=3

Organ Systems

Types of Body Cells

Types of Body Tissues

Human Body Organs

Organisms

Chapter 12 The Health of the Body Depends On The Health Of Its Interdependent Systems.

Body Systems Are Interconnected ( )

Lifestyle Choices Impact On Organ Systems - Discuss Nutrition (Diet) Exercise Stress “Smoking”, “Alcohol”, “Sedentary”

Technology and Innovations Insulin Pumps Pace Makers - Hearts Cochlear Implants Artificial Limbs Dialysis Machines Respirators …

Careers Relating To Body Health Doctor (PHD) Body Trainer (YMCA) Dietician Physiologist Nurse Pharmacist Medical Sale Representative

Community Needs Wheelchair Accessibility Dialysis Bicycle and jogging ways Walk ways Skateboard Parks Recreation Centers (hockey Baseball Pitch Soccer Fields