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10 Cards in this Set
- Front
- Back
5 Kingdoms
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1) Monera: ex: bacteria - unicellular
2) Protista: ex: ameba - multicellular 3) Fungi: ex: mushrooms - multicellular 4) Plantae: ex: lettuce - multicellular 5) Animalia: ex: tiger - multicellular |
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7 Parts of a Prokaryotic Cell & Functions
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1) Cell wall: protects
2) Cell membrane: controls what goes in & out 3) Flagella: locomotion 4) Ribosomes: make protein 5) Nucleoid: contains DNA 6) Pili: exchanges DNA 7) Cytoplasm: gives cell shape/structure & supports cell parts |
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Diffusion
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Movement of molecules from an area of high to low concentration
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Equilibrium
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Concentration of molecules is the same throughout a space
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Osmosis
Hypertonic Solution Hypotonic Solution Isotonic Solution |
Diffusion of water from an area of high to low concentration
1) Hypertonic Solution: H2O goes out of cell 2) Hypotonic Solution: H2O goes in cell 3) Isotonic Solution: H2O goes in & out of cell, equilibrium |
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Cells deal with osmosis by: (2 ways)
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1) In a hypotonic solution where water is constantly diffusing into these organisms, organisms must get rid of excess water by using CONTRACTILE VACUOLES which collects excess water & pumps out it outside of the cell.
2) Plant cells that are in a hypotonic solution swell with water & the swelling stops once the membrane is pressed against the cell wall: TURGOR PRESSURE |
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Plasmolysis
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The shrinking of a cell membrane due to osmosis (H2O leaves) because cell is in a hypertonic solution or the cell dehydrates
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Passive VS Active Transport (2 differences)
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1) Active Transport uses ATP while Passive doesn't
2) In Active Transport molecules move from a low to high concentration, while in Passive molecules move from high to low |
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Passive Transport + 4 types
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movement of molecules across a cell membrane from an area of high to low concentration
1) Simple Diffusion 2) Osmosis 3) Facilitated Diffusion 4) Ion Channels |
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Active Transports 4 Types:
Ion Pump Endocytosis Exocytosis Co-Transport |
1) Ion Pump: Allows 2 types of molecules to pass through
Ex: Sodium & Potassium Pump. Sodium & Potassium each have their own ion channels but together they go through the same ion pump. 2) Endocytosis: Cell absorbs materials via cell membrane -Phagocytosis: food bacteria -Pinocytosis: liquid 3) Exocytosis: Cell gets rid of substances in vesicle to the outside of the cell -waste 4) Co-Transport: substances move in & out of a cell through protein with another substance |