5 Written questions
5 Matching questions
- What type of reaction is this? burning of wood releases glucose molecules energy as heat and light
- How does active transport work?
- What is a hypertonic solution?
- What is the membrane?
- What is a competitive inhibitor?
- a Exergonic reaction
- b fluid mosaic of phospholipids and proteins
- c A chemical that resembles the enzymes normal substrate, binds to active sight, irreversible
- d The protein receives the solute, ATP phosphorylates the protein, the protein changes shape which causes the solute to be launched on the other side of the membrane where it is more concentrated
- e A solution whose pH is higher than that of the cells, cell loses water, shrivels
5 Multiple choice questions
- 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
- Because plants have cell walls which make it harder for the solution to take effect, need more of it
- Doesn't bind to active sight, binds to corner of enzyme, changes shape of active sight so substrate cannot bind
- 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
- With one phosphate group and two fatty acids, has hydrophilic head and hydrophobic tails
5 True/False questions
What is active transport? → Requires that a cell expends energy to move molecules across membrane against concentration gradient, low to high concentration, ATP supplies energy for most active transport
What is the energy of activation? → 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
What is selective permeability? → PM allows some substances to cross more easily than others
What is the solution? and why? → The sight where the enzyme and substrate react together, specific because the active sight only fits one substrate
How is competitive inhibation prevented? → Doesn't bind to active sight, binds to corner of enzyme, changes shape of active sight so substrate cannot bind