Term
Briefly describe the cell membrane. |
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Definition
Made from a phospholipid bilayer. The consistency is about 50 atoms and has an olive oil like consistency. It also contains a network of proteins such as enzymes, carriers, and pumps. |
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Term
True or False. Due to the fluidity of the cell membrane, it is difficult to repair small tears without using energy. |
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Term
Briefly describe how enzymes work. |
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Definition
-The enzyme will fit into the active site of the substrate and modifies it. -This creates an enzyme-substrate complex. As the reaction is carried out it generates an enzyme-product complex -The substrate then releases the enzyme unchanged while a product made from the substrate is also released. -Enzyme then can repeat the process with a new substrate |
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Term
What are the most important activated carriers and how is the energy stored in each? |
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Definition
-ATP - energy is stored as a chemical bond -NADH and NADPH - energy is stored as high energy electrons |
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Term
Name some properties of amino |
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Definition
-Some can can carry a charge -AA chains can contain hydrophobic and hydrophilic regions -Hydrogen bonds can form between neighboring regions of the chain -Covalent bonds can form between the R groups of 2 cysteine amino acids to form a disulfide bridge. |
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Term
What process allows energy to reach the cells? |
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Term
Staying true to the first law of thermodynamics, what happens to the energy used by the cell? |
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Term
True or False. Enzyme driven chemical reactions occur as a series where the product of a reaction becomes the substrate of the next chemical reaction. |
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Essay Question: Describe each level of protein structure. Tell how each one contributes to the overall shape of the protein |
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