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5 Written questions

5 Matching questions

  1. What is a receptor protein?
  2. What is a concentration gradient?
  3. What is the solution? and why?
  4. What is osmosis?
  5. How does a receptor protein relay it's information?
  1. a The diffusion of water across a selectively permeable membrane
  2. b A protein that's part of the fluid mosaic that fit's the shape of a message just like an enzyme fit's the shape of a substrate
  3. c The binding of the protein to the message sets off a chain reaction involving other proteins which relay the message to a meolecule that performs a specific activity inside the cell
  4. d The amount a substance can diffuse down to until it reaches equilibrium
  5. e Enzymes, and Because enzymes act as biological catalysts that increases the rate of a reaction without itself being changed into a different molecule, smushes down energy barrier

5 Multiple choice questions

  1. The way of an plant/animal to prevent excessive uptake or excessive loss of water
  2. A solution whose pH is lower than that of the cells, cell gains water, pops
  3. signl transduction
  4. The bonds that keep the three phosphates together are easily broken by hydrolysis, when the bond to the third group breaks the phosphate group leaves ATP which becomes ADP, and energy is released (?)
  5. A specific reactant that an enzyme reacts on, fits into the active sight

5 True/False questions

  1. How is competitive inhibation prevented?A chemical that resembles the enzymes normal substrate, binds to active sight, irreversible


  2. What type of reaction is this? burning of wood releases glucose molecules energy as heat and lightEndergonic reaction


  3. What is a hypertonic solution?A solution whose pH is higher than that of the cells, cell loses water, shrivels


  4. How does facilitated diffusion work?When molecules are too big to pass through membrane, so they go through protein to be able to get to the other side


  5. What is an exergonic reaction?A reaction that requires energy, its products have more energy than its reactants, energy is absorbed through surroundings as reaction occurs, energy stored in covalent bonds of product molecules