APHY 101 midterm exam Questions And Well Elaborated Solutions

APHY 101 midterm exam Questions And Well Elaborated Solutions A form of energy released during metabolism -food -heat -pressure -water - ANSWER -Heat An application of force that helps move things in the body -food -heat -pressure -water - ANSWER -Pressure Glucose and glycogen are examples of what group of organic compounds? -Nucleic acids -Proteins -Lipids -Carbohydrates - ANSWER -Carbohydrates Which of the following lists best illustrates increasing levels of complexity? -Organelles, cells, tissues, organs, organ systems -Tissues, cells, organs, organelles, organ systems -Cells, tissues, organelles, organs, organ systems -Organs, organelles, organ systems, cells, tissues - ANSWER -Organelles, cells, tissues, organs, organ systems What is the definition of homeostasis? -Equilibrium between the external and internal environments -Process that moves conditions toward a normal state -Maintenance of a stable internal environment Substances that provide the body with necessary chemicals; used for energy or building -food -heat -pressure -water - ANSWER -Food -All the chemical reactions necessary to maintain life - ANSWER -Maintenance of a stable internal environment Which organic molecule is formed of branched chains of sugar units, and is used by humans (and other mammals) to store carbohydrate in the liver and skeletal muscle? -Triglyceride -Glycogen -Starch -Cholesterol - ANSWER -Glycogen Gastric juice (fluid in the stomach) has a pH value of 2.0. Therefore, this solution is - acidic -basic -neutral - ANSWER -acidic Examples of nucleic acids include -RNA and DNA -steroids and triglycerides -enzymes and RNA -proteins and DNA - ANSWER -RNA and DNA A researcher has questions about the structure of the mesentery, a tissue connecting the intestines to the wall of the abdominal cavity. They begin researching its location, components, and its specific structures. This researcher is studying the physiology of the organ. -true -false - ANSWER -False What term refers to the combination of all of the chemical reactions in cells that use or release energy? -metabolism -differentiation -homeostasis -digestion - ANSWER -metabolism What does pH measure? -The amount of hydrogen ions in a solution. -The amount of electrolyte in a solution. -The amount of water in a solution. -The amount of pressure of a solution. - ANSWER -The amount of hydrogen ions in a solution. Which is a physiological description rather than an anatomical one? -The skin is composed of an epithelial layer over a connective tissue layer. -The aorta is a large vessel connected to the heart. -The quadriceps femoris and hamstring muscles are located in the thigh. -Heart muscle is under involuntary control and is fatigue-resistant. - ANSWER -Heart muscle is under involuntary control and is fatigue-resistant. The normal pH of blood is 7.35 to 7.45. Thus, the normal pH of blood is -basic - acidic -neutral - ANSWER -basic Which of the following correctly describes the characteristic of life that involves the reaction to a change inside or outside of the body? -Responsiveness -Reproduction -Movement -Growth - ANSWER -Responsiveness Cell membrane structure; energy storage -Lipids -Nucleic Acids -Proteins -Glucose - ANSWER -Lipids Genetic information -Glucose -Lipids -Nucleic Acids -Proteins - ANSWER -Nucleic Acids Cellular fuel -Glucose -Lipids -Nucleic Acids -Proteins - ANSWER -Glucose Substance that releases H+; decreases pH -Base -Acid -Buffer -Salt - ANSWER -Acid Substance that resists a change in pH -Base -Acid -Buffer -Salt - ANSWER -Buffer