PGA Level 3 Study Guide 3.0 (2026) | Complete Questions and Answers with Expert Teaching & Management Solutions

PHYS 261 Human Physiology Lecture Notes 2026 | Chapters 1, 4 & 5 Questions and Answers with
Expert Solutions




15% - (ANSWER)Total body oxygen consumption.



50% - (ANSWER)Total body glucose utilization.



Respiratory Quotient - (ANSWER)A.K.A Respiratory Exchange Ratio (RER).



Respiratory Quotient - (ANSWER)The ratio of CO2 produced to O2 consumed which varies with diet.



Respiratory Quotient - (ANSWER)Values of carbohydrate is highest and fat value is lowest.



Metabolism - (ANSWER)All the chemical reactions that extract, use, or store energy.



Anabolism - (ANSWER)A.K.A Anabolic pathways.



Anabolism - (ANSWER)Metabolic pathways that require a net input of energy and synthesize small
molecules into larger ones.



Gluconeogenesis - (ANSWER)Glucose synthesis from noncarbohydrate precursors, especially amino
acids.



Gluconeogenesis - (ANSWER)The creation of glucose from glycerol (triglyceride), amino acids, or lactate.



Glycogen - (ANSWER)Found in the cytosol of cells with highest concentrations in liver and skeletal
muscles.



Ketogenesis - (ANSWER)A metabolic state in which fat provides most of the fuel for the body when there
is limited access to glucose.