Archaebacteria - cabarrus.k12.nc.us · Archaebacteria •Prokaryotes •Several hundred known...
Transcript of Archaebacteria - cabarrus.k12.nc.us · Archaebacteria •Prokaryotes •Several hundred known...
Archaebacteria
• Prokaryotes
• Several hundred known species
• Most live in extreme environments
• Can be found in swamps, deep ocean thermal vents, and sea-water evaporating ponds.
Questions
• We learned about the differences between prokaryotes and eukaryotes. List 3 differences.
• Why might it be advantageous to have the adaptations that allow survival in extreme environments?
Eubacteria
• Prokaryotes
• Very strong cell walls.
• Found in most environments except the extreme environments occupied by archaebacteria
• Some cause diseases such as strep throat but most are harmless.
Questions
• Some bacteria can do photosynthesis. What trophic level would these bacteria exist at?
• What color would a photosynthetic bacteria be?
• What wavelengths of light would they absorb? What would they reflect?
Protista
• Eukaryote that lacks complex organ systems.
• Fossil of protists shown to be up to 2 million years old.
• Some are animal like, some plant like, some fungus like.
• Can be unicellular or multicellular
Questions
• Some protists have hair-like appendages that help them move. What are these called?
• At what trophic level would the fungus-like protists exist?
• Which process would animal-like protists use to make energy?
Fungi
• Eukaryote
• Heterotrophs that do not move.
• Oldest fossil 400 million years old
• Absorb nutrients from organic material in the environment.
Questions
• Fungi do not move but we know they are alive. What are the characteristics of life?
• Yeast is a type of fungus. Recall that we used yeast for a lab where they filled balloons with a gas after alcoholic fermentation. What was that gas?
Plants
• Multicellular Eukaryotes
• Do not move
• Very diverse
• Autotrophs/producers
• Cells usually contain chloroplasts
Questions
• Plants use photosynthesis to get energy. What is the equation for photosynthesis.
• Photosynthesis has 2 parts: The light reactions and the Calvin Cycle. Where in the chloroplast do these each take place?
Animals
• Multicellular eukaryotes.
• Heterotrophs
• Very diverse
• Cells organized into tissues, organs, and organ systems.
• No cell walls
Questions
• Animals use cellular respiration to get energy. What is the equation for cellular respiration?
• How much ATP is produced during cell respiration?
• Oxygen is required for cellular respiration. What process is used when no oxygen is present?