Science 8

1
Science 8

• Discovering Science 8
• Unit 4
• Cells, Tissues, Organs and Systems

2
Chapter 10

• The Cell Is The Basic Unit Of Life.

3
The Compound Microscope

4
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

5
Cells

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

6
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.

7
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.

8
Meiosis

• Cell division in sex cells (Gametes)

9
Organelles (p.405)

• Cell Wall
• Cell Membrane
• Chloroplast
• Cytoplasm
• Nucleus
• Vacuole
• Mitochondria

10
Plant Cells

11
Animal Cells
12
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.

13
Chapter 11

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

14
The Levels of Organization found in All Living
Thing

• 1.) Cells -
• 2.) Tissue -
• 3.) Organs -
• 4.) Organ Systems -
• 5.) Organisms -

15
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.

16
Cells and Organisms Require The Same Basic
Necessities of Life

• 1.) Oxygen
• 2.) Nutrients
• 3.) Waste Removal

17
Organ Systems continued

• Circulatory System - http//www.youtube.com/watch?
  vD3ZDJgFDdk0
• Respiratory System -http//www.youtube.com/watch?v
  HiT621PrrO0
• Digestive System - http//www.youtube.com/watch?v
  P5lyQUtq1KQ
• Excretory System -http//www.youtube.com/watch?v2
  ea7LtEZOYk
• Nervous System -http//www.youtube.com/watch?vQ7X
  tw--U5jkfeaturerelated
• Skeletal and Muscular System - http//www.youtube.
  com/watch?vGTv2mRH1WacfeaturePlayListpCC84BC2
  1DDE448E4playnext_fromPLplaynext1index3

18
Organ Systems

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Types of Body Cells

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Types of Body Tissues

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Human Body Organs

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Organisms

23
Chapter 12

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

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Body Systems Are Interconnected (436-440)
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Lifestyle Choices Impact On Organ Systems -
Discuss

• Nutrition (Diet)
• Exercise
• Stress
• Smoking, Alcohol, Sedentary

26
Technology and Innovations

• Insulin Pumps
• Pace Makers - Hearts
• Cochlear Implants
• Artificial Limbs
• Dialysis Machines
• Respirators

27
Careers Relating To Body Health

• Doctor (PHD)
• Body Trainer (YMCA)
• Dietician
• Physiologist
• Nurse
• Pharmacist
• Medical Sale Representative

28
Community Needs

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