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58 Cards in this Set
- Front
- Back
Abiogenesis |
Lige forms arise from non living matter. |
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Biogenesis |
Living organisms come from other living organisms |
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Schwann & Schleiden |
All living things are made of cells. Advancement in lenses. |
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Hooke |
Cork & tiny rooms = cells |
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Leeuwenhoek |
Single celled organisms Matter scraped from teeth Homemade microscope |
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Redi |
Flies & meat = maggots Spontaneous generation |
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Cell theory |
Organisms composed one or more cells Smallest unit of life Produced from other cells |
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Cell membrane |
Container Phospholipid bilayer and proteins Proteins interact with other cells |
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Nucleus |
Control center DNA controls cell functions Cite of ribosome production |
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Ribsosomes |
Proteins Composed of rrna Reads and translates messages which makes proteins |
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Endoplasmic Reticulum |
Highway Transport network of tubes |
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Rough ER |
Ribosomes Protein |
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Smooth ER |
Lipids Packages large molecules into vesicles |
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Golgi Apparatus |
Factory Molecules modified by enzymes Recieved sorts and packages them |
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Lysosomes |
Store enzymes Digest contents |
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Vaculoles |
Storage Food water Waste Minerals |
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Mitochondria |
Powerhouse Provide energy = ATP Break down glucose |
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Cell wall |
Plant cells Rigid for support Made if cellulose |
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Chloroplasts |
Solar panels Photosynthesis |
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Hydrophobic |
Fears water |
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Hydrophilic |
Loves water |
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Fluid mosaic model |
Membrane constant motion Which helps membrane proteins function |
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Carbohydrates |
Make cells unique Attached to lipids and proteins on outer surface |
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Semi-permeable |
Allow water to pass Exclude other molecules |
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Solute |
Substance being dissolved |
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Solvent |
Water |
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Osmosis |
Movement of water across membrane |
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Isotonic |
Same concentration of solutes |
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Hypotonic |
Lower concentration solute Water moves in |
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Hypertonic |
High concentration solute Water moves out |
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Concentration gradient |
With - high to low - down Against - low to high - up |
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Active transport |
Against concentration gradient Requires energy |
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Passive transport |
Along gradient No energy |
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Facilitated diffusion |
Transport proteins to assist diffuse |
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Carrier proteins |
Change shape Certain molecules |
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Channel proteins |
Water filled Small dissolved ions can diffuse |
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Endocytosis |
Absorbs material and transports through cell |
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Phagocytosis |
Ingest food |
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Pinocytosis |
Fluid |
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Exocytosis |
Dispose of waste |
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Surface area to volume |
Relative magnitude of surface area to volume Volume faster than area Greater surface area = more efficient |
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Multicellular |
Add more cells rather than make larger |
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Epidermis |
Protection |
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Cuticle |
Prevents evaporation |
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Palisade tissue |
Photosynthesis |
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Spongy tissue |
Gas exchange Photosynthesis |
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Stomata |
Allows gases in and out |
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Guard cells |
Regulate stomata size |
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Xylem |
Water and minerals up (dead) |
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Phloem |
Sugars up and down |
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Transpiration |
Evaporation of water from leaves |
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Turgor pressure |
Water pressure in plant cells Allows to remain rigid Low water = cell deflates |
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Root pressure |
Turgor pressure inside root xylem |
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Cohesion |
Stick to other water molecules |
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Adhesion |
Stick to certain surfaces |
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Auxin |
Plant growth hormone produced in plant tips |
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Gravitropism |
Response of plant to gravity |
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Phototropism |
Growth of plant toward light source |