Bio 202 Exam 2 questions with complete solutions

Bio 202 Exam 2 questions with complete solutionsMitochondria - correct answer What cellular structure does most energy production take place? •Energetics studies the flow of energy and its changes from one form to another •Metabolism refers to all chemical reactions in an organism - correct answer Define Energetics and metabolism. •Catabolism breaks down molecules and releases energy •Anabolism builds molecules and requires energy input - correct answer Define Catabolism & Anabolism. •As mitochondria process small molecules, they capture about 40% of the energy into ATP synthesis while 60% of the energy escapes as heat - correct answer What percentage of ATP is captured in the mitochondria and what percentage escapes as heat? •Glycolysis is anaerobic (no oxygen required) and occurs in the cytosol •Other processes are aerobic (oxygen required) and occur in the mitochondria •Book says 36 ATP (in reality, closer to 30 ATP) - correct answer What part of the cell does glycolysis occur, does it require oxygen, how many molecules of ATP are made, and how many molecules of ATP are needed for the process? •Beta oxidation is a sequence of reactions that break a fatty acid down into 2-carbon acetic acid fragments that are ultimately incorporated into acetyl CoA •Beta oxidation occurs in mitochondria - correct answer Where does the process of beta-oxidation occur, and what substance is being catabolized? •Low-density lipoproteins (LDLs) primarily contain cholesterol that is being delivered to peripheral tissues •May accumulate in arterial plaques