Chapter 1, Problem 9RQ

Which of the following can be used to synthesize fatty acids? a. Glucose c. Both a and b b. Amino acids d.Neither a nor b

Which of the following organs does glycolysis occur in an anaerobic environment?*   a.Liver b.Brain c.Kidney d.Erythrocytes

Which of the following statements about metabolic heat is true? A. Relative to their body size, animals that maintain body temperature by metabolic heat production have lower metabolic rates than animals that do not use metabolic heat to maintain body temperature B. Metabolic heat is the product of inefficiencies in the biochemistry of life C. Homeotherms rely on metabolic heat to maintain body temperature D. Relative to their body size, larger animals lose more metabolic heat to the environment than smaller animals E. All of the above are true

Homeostatic systems maintain a steady-state set point over time using negative feedback. Which one of the following statement is NOT TRUE for stability of metabolic system: Select one: a. Step changes in a controlled variable will return the system to its original state using negative feedback b. Metabolic systems that oscillate must have multiple control variables c.A positive feedback system is stable over time, maintaining a steady state d. Perturbations from steady state, either positive or negative, result in recovery reactions that returm the system to is original state.

Chemotrophic energy metabolism is a catabolic and exergonic process that produces ATP from oxidizing molecules. Which among the following is not an energy source of chemotrophic energy metabolism? A. Iron B. Photons C. Carbohydrates D. Proteins

Muscle soreness and fatigue in a racehorse after a long, strenuous race is a result of in the muscle. A. anaerobic metabolism, which leads to lactic acid buildup B. aerobic metabolism, which leads to buildup of carbon dioxide C. aerobic metabolism, which leads to lactic acid deficiency D. anaerobic metabolism, which leads to ATP buildup

Which of the following is NOT a function of proteins in the human body? A. Energy source B. Signal transduction C. Insulation D. Catalyzing metabolic reactions

Which of the following functions is morecharacteristic of carbohydrates than of proteins?a. contractionb. energy storagec. catalyzing reactionsd. immune defensee. intercellular communication

Which of the following is NOT a physiological role of phosphorus?   Select one: a.      Required for ossification of bones during embryonic development   b.   Required for enzymatic conversions in glycolysis   c.   Links together ribose sugars and their associated nitrogenous bases   d.   Important compound required to inhibit auto-oxidation of fatty acids