APHY 101 MIDTERM EXAM ACTUAL 2025/2026 Q&A 100% PASS

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APHY 101 MIDTERM EXAM WITH QUESTIONS AND VERIFIED ANSWERS (GRADED A+) LATEST UPDATE 2024/2025 Substance that releases H+; decreases pH -Base -Acid -Buffer -Salt - CORRECT ANSWER Acid Which serous membrane would be found in the abdominopelvic cavity? -Pericardial membrane -Pleural membrane -Peritoneal membrane - CORRECT ANSWER Peritoneal Substance that combines with H+ to remove it from solution; increases pH -Base -Acid -Buffer -Salt - CORRECT ANSWER Base Substance that resists a change in pH -Base -Acid -Buffer -Salt - CORRECT ANSWER Buffer Product (along with water) of a reaction between an acid and a base -Base -Acid -Buffer -Salt - CORRECT ANSWER Salt Which of the following are typically required to maintain a stable internal environment? -Positive Feedback Mechanisms -Negative Feedback Mechanisms -An unstable outside environment. -Decreased atmospheric pressure - CORRECT ANSWER Negative feedback mechanisms Which level of protein structure refers to the twisting or pleating of the polypeptide chain? -quaternary structure -primary structure -secondary structure -tertiary structure - CORRECT ANSWER Secondary structure The most abundant chemical in the body; transports and regulates body temperature -food -heat -pressure -water - CORRECT ANSWER Water Substances that provide the body with necessary chemicals; used for energy or building -food -heat -pressure -water - CORRECT ANSWER Food A form of energy released during metabolism -food -heat -pressure -water - CORRECT ANSWER Heat An application of force that helps move things in the body -food -heat -pressure -water - CORRECT ANSWER Pressure Glucose and glycogen are examples of what group of organic compounds? -Nucleic acids -Proteins -Lipids -Carbohydrates - CORRECT 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 - CORRECT 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 -All the chemical reactions necessary to maintain life - CORRECT 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 - CORRECT ANSWER Glycogen Gastric juice (fluid in the stomach) has a pH value of 2.0. Therefore, this solution is -acidic