Ivy Tech Aphy 201 Exam 1 Study Guide With Complete Solutions

Primary {Ans: Genetically determined sequence of amino acids}Hormones (long distance communication) {Ans: Chemicals secreted directly to the blood that travel to distant target cells and exert their effects at low concentration}Chemical gated ion channels open... {Ans: in response to binding of a signal molecule to a binding site on the channel}What happens when electrons absorb energy from the environment? {Ans: They spin faster, the faster they spin, they can jump into a higher energy level}Control of overall cellular response rate {Ans: Allows the body to very precisely match the degree of target cell response to the amount of stimulus}Most functional proteins bind... {Ans: reversibly to other molecules (there will be an equilibrium between the proportion of bound and unbound molecules)}