Download Levels of Organization

Levels of Organization
ATOMS
• Smallest part of matter
• NON-living
Molecules
• 2 or more bonded atoms
• Form compounds
• NON-living
Organelles
• “Tiny organs”
• Made of molecules
Cell
• Made of organelles
• Basic unit of structure & function
• LIVING
Examples of Cells
Cell Size and Shape
• Size and Shape depend upon its function.
• Red blood cells are small and disc
shaped to fit through the smallest blood
vessel.
• Muscle cells are long and thin. When they
contract they produce movement.
• Nerve cells which carry signals to the brain
are very long.
Cells
• Simple organisms such as bacteria, are
single cell.
• Plants and animals are made up of many
cells.
• Each kind of cell has a particular function.
Function of Cells
Cell Function
Cell work together to perform basic life processes that keep organisms alive.
Getting rid of body wastes.
Making new cells for growth and repair.
Releasing energy from food.
TISSUE
• The same
Tissue
kind of cell
working
together to
perform a job is
called tissue.
• Tissues are
made of cell
woven together.
Description Examples
Covers outside of body
and lines inner
surfaces of the body
Skin
Connects other tissue
together. Supports,
protects, and insulates
organs
Ligaments, cartilage,
blood
Contracts and relaxes
to allow movement.
Makes up some
organs.
Heart, biceps,
triceps
Transmits messages
through the body
Brain, spinal cord,
nerves
Plants have tissue too!
• Plants have tissues too. One tissue moves
food around the plant to cells that need it.
• Another tissue carries water up from the
plant’s roots to its leaves.
• Still another plant tissue forms the hard
outer covering of trees known as bark.
Bark acts as a protective covering for
plants.
Organs
• Tissues that work together to
perform a function
• Living
Organ Systems
• Organs that work together
• Living
Skeletal System
• Made of bones and cartilage that form the
framework of your body.
• Bone cells Æ Bone tissue ÆBonesÆ
Skeletal System
Muscular System
• To allow movement, the bones and joints
of the skeletal system must work with the
muscular system.
• Muscular cells allow movement by
contracting and relaxing.
• Muscle cell Æ Muscle Tissue Æ Muscle Æ
Muscular System
Muscular System
Digestive System
• Takes in materials that your
body needs and creates
energy.
• Muscle cell Æ Muscle tissue
Æ Stomach Æ Digestive
System
Nervous System
• Controls your bodies activities
• Nerve cell Æ Nervous
Tissue Æ Spinal Cord
Æ Nervous System
Circulatory System
• Transports needed
substances to parts of the
body. Also carries away
Waste.
Organism
• Entire living things
(organisms)
• Plants and Animals
• May be a single cell –
like an amoeba,
paramecium, or
bacteria
Population
• Same type of
organism living
together
Community
• Several populations living together
Ecosystem
• A biotic (living) community plus the
abiotic (nonliving) features
Biome
• Similar ecosystems on earth together
Biosphere
• Whole living layer around the globe
• Includes abiotic features
http://people.hofstra.edu/geotrans/eng/ch8en/conc8en/envisys.html
Atom
Molecule
Organelle
Cell
Tissue
Organ
Organ
System
Organism
Population
Community
Ecosystem
Biome
Biosphere
Levels of Organization Mobile
• Use the Power Point Notes and the
Sciencesaurus pages 82 – 102 to create a
mobile.