Cells and Classification of Life Reassessment Review

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Cells and Classification of Life Reassessment
Review

• Directions
• Click Slideshow then From Beginning to view
  this presentation properly.
• Take detailed notes.
• STUDY and quiz your self over the information.

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CELLS
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Prokaryotic Cells Single-celled organisms that
do not have membrane-bound internal structures
no nucleus simple cells with very little
organization of the materials inside.EXAMPLE
bacteria
PROKARYOTIC CELLS
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Eukaryotic Cells cells that have organelles
contain nucleus cells with organized
structuresEXAMPLES Protists, Animals, Plants,
and Fungi
EUKARYOTIC CELLS
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Cell Parts
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Cytoplasm All cells contain cytoplasm. It is a
clear gel-like fluid (liquid) which takes up most
space inside the cell, where many cell reactions
and where organelles are located
CYTOPLASM
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Nucleus Only eukaryotic cells have a nucleus.
control center of cell brain of cell usually
located near center of cell controls cell
activity contains DNA (deoxyribonucleic acid).
Nucleus
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Cell membrane All cells have a cell membrane.
It is the protective barrier of the cell that
holds it together. It lets good material in and
bad material out.
___ _______
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Cell Wall stiff outer barrier of a plant cell,
outside of the cell membrane, mostly made up of
cellulose, provides extra support and gives it
shape surrounds cells of plants, fungi, and
bacteria
Cell Wall
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DOMAINS
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The Three Domains of Life
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The 3 Domains of LifeDomains are the first and
the broadest of classifications.

• One domain is Archea, which is composed of the
  organisms in the Kingdom Archeabacteria.
• Bacteria is the second prokaryotic domain and is
  also composed of single kingdom Eubacteria.
• The third domain, Eukarya, contains all four of
  the eukaryotic kingdoms Animalia (animals),
  Fungi (fungi), Plantae (plants), and Protista
  (protists).

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KINGDOMS
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The 6 Kingdoms of Life
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The Kingdoms of Life

• Biologists have further classified living things
  into six groups called Kingdoms.
• Biologists group organisms into six Kingdoms
  based on the following
• Cell Type
• Organisms are either prokaryotes or eukaryotes.
• Cell Number
• Organisms are either unicellular or
  multicellular.
• Nutrition
• Organisms are either autotrophs or heterotrophs.

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6 KINGDOMS
Kingdom a system used to classify and organize
different organisms found on Earth into groups

• Archeabacteria
• Eubacteria
• Protista
• Fungi
• Plantae
• Animalia

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Kingdom Archaeabacteria

• Contains all of Domain
  Archae.
• Archaebacteria are
  prokaryotes that live in
  very harsh conditions.

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Kingdom Eubacteria

• Contains all of Domain Bacteria.
• Bacteria are prokaryotes and have no internal
  nucleus.
• Bacteria are found in practically every
  environment on Earth.

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Kingdom Fungi

• Single or multi-celled organisms
• Reproduce by spores
• Heterotrophs that eat dead or living organisms -
  decomposer
• Yeasts, molds, mushrooms

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Kingdom Plantae

• multi-cellular organisms
• surrounded by a cell wall
• make their own food (photosynthesis)
• Eukaryotes
• Mosses, ferns, conifers, and flowering plants
• Flowering plants produce seeds in flowers
  conifers make seeds in cones mosses and ferns
  reproduce by spores

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Kingdom Animalia

• multi-cellular organisms
• eukaryotes
• get energy from other organisms (omnivores)

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Kingdom Protista

• mostly single-celled organisms
• eukaryotes
• Some feed on other organisms ex. Amoeba and
  paramecium (heterotroph)
• Some make their own food (photosynthesis) ex.
  Euglena and algae (autotroph)