UMKC BIO 108 UNIT 2 TEST QUESTIONS WITH CORRECT ANSWERS LATEST UPDATE 2026

UMKC BIO 108 UNIT 2 TEST QUESTIONS WITH CORRECT ANSWERS LATEST UPDATE 2026 Which parameter changes in an enzyme-catalyzed reaction? - Answers EA (big E little A on test) In chemiosmosis, a H+ gradient is formed. What is the dominant type of energy this gradient processes? - Answers potential energy What are the correct cellular locations for the following pathways? 1. The Kreb's Cycle 2. Glycolysis 3. Fermentation - Answers 1. matrix 2. cytosol 3. cytosol During the catabolism of glucose, ATP is produced by substrate-level phosphorylation _____________. - Answers in glycolysis and the Kreb's cycle Where do the light reactions of photosynthisis occur in the chloroplast? - Answers thylakoid What stage of photosynthesis has O2, ATP, and NADPH as endproducts? - Answers the light reactions The ultimate source of energy for the synthesis of organic molecules by photosynthesis is _________________. - Answers sunlight For each type of organism, identify the mechanism used for cell division. 1. Animals 2. Bacteria 3. Plants - Answers 1. Mitosis 2. Binary Fission 3. Mitosis Which stage of mitosis does the nuclear envelope fragment and microtubules attach to kinetochores? - Answers Prophase The spindle fibers attach to replicated chromosomes during mitosis and meiosis at __________. - Answers kinetochores Nuclear division resulting in cells with half the parental chromosome number is ____________. - Answers meiosis In which of the following stages will homologous pairs of chromosomes NOT be presented in a dividing animal cell? - Answers prophase || of meiosis The parameter ____ represents entropy, which is defined as the amount of ____________________. - Answers S, disorder What is the term used to describe a pair of chromosomes containing the same gene loci, in which one is inherited from the mother and the other is inherited from the father? - Answers homologous chromosomes if two reactions in a cell are said to be coupled, one can infer that _________________. - Answers one reaction is endergonic and the other reaction is exergonic The oxidation of glucose to CO2 and H2O had delta G of -636 kcal/mole. Why does glucose not rapidly degrade? - Answers Glucose molecules lack the necessary activation energy at room temperature. For the following examples, select your expectations for the sign of delta G. A) The hydrolysis of glycogen into smaller fragments B) The synthesis of DNA C) The synthesis of protein - Answers A) negative delta G B) positive delta G C) positive delta G Living organisms increase in complexity as they grow, resulting in a decrease in the entropy of an organism. How does this relate to the second law of thermodynamics? - Answers As a consequence of growing, organisms create more disorder in their environment than the decrease in entropy associated with their growth. An investor demonstrates that a certain yeast strain is able to grow and consume glucose in a closed chamber in the absence of oxygen. The investigator notices that when the chamber is opened to air, the cells grow but the consumption of glucose by the yeast decreases dramatically. This indicates the yeast strain is ______________. - Answers a facultative anaerobe Which of the following statements regarding the process of lactic acid fermentation is TRUE? - Answers all of the above You are studying the metabolism of a newly discovered fish. Based solely on the activity of glycolysis, what are your expectations if you measure the concentrations of these molecules? 1. NAD+ 2. ATP 3. NADH 4. CO2 5. FADH2 - Answers 1. decrease 2. increase 3. increase 4. no charge 5. no charge In anaerobic conditions, NAD+ is regenerated by ___________________. - Answers fermentation In glucose catabolism, which pathway(s) are taken when oxygen is NOT present in high levels? - Answers glycolysis and fermentation