Animal Cells and Plant Cells are Multicellular Cells are not all the same kind. They specialize. Cells are organized into Tissues Tissues are organized into Organs Organs are organized into Systems such as: Circulatory System Nervous System Skeletal System Muscular System Respiratory System Digestive System Name some organs in the Digestive System esophagus intestine colon liver On the Quiz stomach

Chromosome 2 Chromatids Each is an identical copy of the other… they are 2 copies of the same DNA

What was in the tube? What was in the beaker? Is starch blue? Is iodine blue? Why is the tube blue? Why isn’t the water in the beaker blue? What got into the tube? Why didn’t what was in the tube get through the membrane and turn the water in the beaker blue?

Egg Osmosis Lab Review What happened to the egg in the syrup? Why? This kind of solution is called Hypertonic Hyper = Too much Tonic =Solute “Sugar” “Salt” The water molecules inside were closer together… than those outside So they encountered the membrane more often

What happened to the egg in the pure water? Why? This kind of solution is called Hypotonic Hypo = Too little Tonic =Solute The water molecules outside were closer together… than those inside So they encountered the membrane more often

Science Prefixes and Suffixes Hyper = too much Hypo = too little Tonic = something dissolved in water, a solute Hypertonic = Hypotonic = Iso = the same, equal Isotonic = too much sugar or salt too little sugar or salt equal sugar or salt

Science Prefixes and Suffixes Cyto = cell Plasm = fluid, or blood Cytolysis = Plasmolysis = Lysis = to break cell breaks: (swells and bursts) fluid breaks: cell shrivels Which is caused by a hypotonic solution?Which is caused by a hypertonic solution?

Science Prefixes and Suffixes Hyper = Hypo = Tonic = Iso = Cyto = Plasm = Lysis = too much too little the same, equal something dissolved in water, a solute cell fluid, or blood to break

Terms Hypertonic = Hypotonic = Isotonic = too much sugar or salt too little sugar or salt equal sugar or salt Cytolysis =cell breaks: (swells and bursts) Plasmolysis =fluid breaks: cell shrivels Cytolysis does not happen when a cell has cell walls Plant & bacteria cells develop Turgor Pressure Turgor =Water pressure inside a cell having walls

Diffusion & Osmosis are PASSIVE TRANSPORT Cells don’t use energy for them to happen ACTIVE TRANSPORT (Requiring energy) is needed to resist Diffusion and Osmosis

Active Transport = Using energy to transport things A Paramecium uses energy to pump water OUT Contractile vacuole

Science Prefixes and Suffixes Cyto = cell Exo = out, exit, pump out osis = process Exocytosis = Endocytosis = Endo = enter, go in Exit cell process Enter cell process Pumping stuff OUT Pumping goods IN

Phago = to eat Phagocytosis =Eating cell process Phagocyte =An Eating Cell! Eating by cells Sometimes, something tasty is too big to absorb through the cell membrane by endocytosis. So the cell has to engulf it and digest it.

Phagocyte (White Blood Cell)

Terms Hypertonic = Hypotonic = Isotonic = too much sugar or salt too little sugar or salt equal sugar or salt Cytolysis =cell breaks: (swells and bursts) Plasmolysis =fluid breaks: cell shrivels Turgor =Water pressure inside a cell having walls Exocytosis =Pumping stuff OUT Endocytosis =Pumping goods IN Phagocytosis =Eating by cells

Cells are organized into Tissues are organized into Organs are organized into Tissues Organs Systems

Write the term & it’s definition 1. Hypertonic = 2. Hypotonic = 3. Isotonic = 4. Cytolysis = 5. Plasmolysis = 6. Turgor = 7. Exocytosis = 8. Endocytosis = 9. Phagocytosis = Review 10. Cells are organized into _________________ 11. which are organized into _________________ 12. which are organized into _________________ too much sugar or salt too little sugar or salt equal sugar or salt cell breaks: (swells and bursts) fluid breaks: cell shrivels Water pressure inside a cell having walls Pumping stuff OUT Pumping goods IN Eating by cells Tissues Organs Systems

Write the term & it’s definition 1. Hypertonic = 2. Hypotonic = 3. Isotonic = 4. Cytolysis = 5. Plasmolysis = 6. Turgor = 7. Exocytosis = 8. Endocytosis = 9. Phagocytosis = Quiz 10. Cells are organized into _________________ 11. which are organized into _________________ 12. which are organized into _________________