Bio 212 Test Questions and Correct Answers

It's cold outside, but excessively hot in Col 150. Cation X+ is more concentrated on the inside of a cell. Many ions of various types are passing through channels in the membrane. We know from this set of facts that this cell has a positive membrane potential A cation more concentrated inside a cell is the only ion allowed to flow through the membrane. Initially there is no charge across the membrane, but this process generates A negative membrane potential If two types of cations are moving in opposite directions and they are the only ions moving, and the membrane potential is positive, the ion moving faster has a positive equilibrium potential Given an enzyme with a Km for substrate of 12 and a Vmax of 96. What would be the rate of enzyme activity If the concentration of substrate was 6.5 ? 26 If there are more X+ cations inside a cell and if, when an X+ channel opens, X+ cations enter the cell, we know that... The equilibrium potential of X+ is negative and so is the membrane potential of the cell Given logic of PKF regulation, which has a higher affinity for ATP? The active site of PFK Where does the Orexin::UCP2 gene construct cause ectopic gene expression to occur?In other words, where is a protein made in a new place because of what the scientists added to mice in the Saper paper? the hypothalamus Temperature conforming animals may Use body temperature to modify their metabolic rate Allen's rule states that the SA/M ratio of animals scales increases with increased environmental temperature. Bergmann's rule states that animals of a given type will on average be larger with decreased environmental temperature.