Jmu Bio 140 Exam 3 Questions With 100% Correct Answers

cellular metabolism CORRECT ANSWER the name given to describe the many cellular chemical reactions homeostasis CORRECT ANSWER the cellular metabolism, cells maintain a fairly stable equilibrium of chemicals catabolic CORRECT ANSWER chemical reactions that tear less stable bonded molecules down to form stable bonded molecules (produce energy) anabolic CORRECT ANSWER chemical reactions that build less stable molecules from more stable molecules (use energy) thermodynamics CORRECT ANSWER the branch of physics which deals with the relationships between different forms of energy: potential and kinetic 1st law of thermodynamics CORRECT ANSWER energy can neither be created or destroyed, it can only change forms 2nd law of thermodynamics CORRECT ANSWER during every energy transfer/ transformation, so energy is unusable and is often given off as heat; energy transformations increase the entropy applying thermodynamics in a reaction: ΔG (must be negative) CORRECT ANSWER ΔG= G(products) - G(reactants) cellular respiration CORRECT ANSWER a set of catabolic reactions used by (organo)chemotrophs to make ATP; glucose is oxidized to form carbon dioxide autotrophs CORRECT ANSWER carbon from inorganic sources; vascular plants, hydrogen bacteria heterotrophs CORRECT ANSWER carbon from organic compounds; non-sulfur bacteria, animals phototrophs CORRECT ANSWER energy from sunlight chemotrophs CORRECT ANSWER energy from chemical compounds exergonic CORRECT ANSWER Chemical process accompanied by the release of energy