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15 Cards in this Set
- Front
- Back
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2 different forms of energy? |
Kinetic potential |
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Kinetic energy |
Energy of motion in USD Exergonic = releases energy, spontaneous |
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Potential energy |
Energy due to position Endergonic= requires energy input |
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Exergonic + endergonic |
Energy coupling |
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What is ATP? What are its 3 parts? |
Adenosine triphosphate 3phosphates Sugar Nitrogenous base |
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What is an enzyme? How do they help chemical reactions? |
Macromolecule=protein Catalyze chemical reactions, lower the activation energy by binding substrate at active site |
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3 types of enzyme inhibitors? |
Allosteric inhibitor/noncompetative (changes protein shape) Competitive inhibitor (binds at active site) Active site blocker (name speaks for itself) |
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What is diffusion, is it active or passive? |
Movement of molecules from high to low concentration Passive, because it increases the value of disorder (entropy) |
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What is the difference between iso-hyper-&hypotonic? |
Isotonic = equal solute Hypertonic = high solute Hypotonic = low solute |
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What happens to red blood cell in the 3 diff solutions? |
Iso- normal Hyper- shrivels Hypo- lysis (burst) |
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What happens to plant cell when put in 3 diff types of solutions? |
Iso- shrinkage, sorta normal Hyper- plasmolysis (reversible) Hypo- normal, turgid |
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What is facilitated diffusion? What is necessary to cause this type of transport? |
Facilitated diffusion is passive Need a channel protein && concentration gradiant |
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What is active transport? What is necessary to cause this type of transport? |
Actively transports, active Requires ATP && an ATP pump |
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How do large molecules enter/exit a cell? Describe the process for in & out of cell |
"Bulk Transport" PM forms food vesicle (phagocytosis-cell eating) Exocytosis, (exiting the cell) Pinocytosis (fluid import) |
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Different ways a cell can move substances across PM? |
Diffusion Facilitated diffusion Facilitated transport Active Transport Pump or membrane |
