Cells Two Types of Cells Prokaryotic and Eukaryotic

Cells Two Types of Cells Prokaryotic and Eukaryotic

Prokaryotic • NO nucleus or Organelles • Bacteria

Eukaryotic Cells • Have a nucleus and organelles • Plant cells, animal cells

Organelles:

Plant/Animal Cell • Nucleus- Control Center, Holds DNA • Cell Membrane. Controls what enters and leaves the cell • Mitochondrion. Makes ATP (energy) • Ribosome. Makes Proteins

Plant Cells Only • Cell Wall- Protection • Chloroplasts- Photosynthesis

Transport • Cell membrane- controls what enters or leaves the cell. • Semi-permeable- some things can go through, some things cannot.

Everything wants to be: Equal

How do we flow? High to Low (NO energy Needed) • Diffusion- movement of particles from high to low, NO energy • Osmosis- Movement of water from High to low, NO energy

From Low to High- You MUST BUY! • ENERY (ATP) is needed • Active Transport- movement of molecules from Low to high

Osmosis • Hypotonic Solution: High Water- Cell Swells • Hypertonic Solution: Low Water- Cell Shrinks • Isotonic Solution: Equal Water- Cell Stays the same

Photosynthesis • Plants do it. • Happens in the Chloroplast (Green) • Formula • CO 2 + H 2 O + Sunlight → C 6 H 12 O 6 + O 2 • Produces Oxygen Gas

Cell Respiration • • ALL LIVING things do it Happens in the Mitochondrion Opposite of Photosynthesis Formula • C 6 H 12 O 6 + O 6 → H 2 O + CO 2 + ATP

Two Types • Aerobic- with oxygen • Anaerobic- without oxygen • Humans: Lactic Acid Formation • Yeast/Bacteria: Alcoholic Fermentation