NAS 2 Challenge Exam 2024 Questions and Answers

NAS 2 Challenge Exam 2024 Questions and Answers List the 8 Life functions necessary for Life. - CORRECT ANSWER-How are these related? 1. Synthesis 2. Respiration 3. Regulation 4. Reproduction 5. Excretion 6. Growth 7. Nutrition 8. Transport Metabolism - CORRECT ANSWER-ANABOLIC + CATABOLIC Both anabolism and catabolism occur simultaneously and continuously to keep you alive. Anabolism - CORRECT ANSWER-SMALL substances are combined into larger/complex molecules Catabolism - CORRECT ANSWER-LARGE substances are broken down into smaller/simpler molecules. ("destructive metabolism" releases energy) Anatomy - CORRECT ANSWER-study of body structure of an entire organism Physiology - CORRECT ANSWER-study of internal functioning of an organism Give the order of the 5 steps in the Homeostatic Control Mechanism. - CORRECT ANSWER-How are these related? 1. stimulus 2. receptor 3. integrator/control center 4. effector 5. set point negative feedback - CORRECT ANSWER-mechanism that exists as a feedback loop because it can either increase or decrease the stimulus. will perform the opposite of the stimulus in order to return to homeostasis. (ex. human body temperature, blood sugar regulation) positive feedback - CORRECT ANSWER-maintains the direction of the stimulus, possibly accelerating it. (ex. Blood clotting/coagulation - as one clotting factor is activated, it activates the next factor in the sequence until a fibrin clot is achieved) (ex. Human birth - pressure on cervix, contractions, hormone secretion) Homeostasis - CORRECT ANSWER-"steady state"; ability to maintain internal conditions within a normal range almost con