BIOL 220 Exam 2 Homework - Connect Questions and Answers Already Passed
Which of the following is/are a characteristic of skeletal muscle? Check all that apply. - Answers
-Overlapping thin and thick filaments
-Striations
-Overlapping myosin and actin proteins
-Excitability
Assign each example to the universal muscle characteristic being described. - Answers
excitability
-placing muscle in a solution containing calcium & ATP
conductivity
-action potentials in the center of the fiber radiating to the ends
-depolarization of a single muscle fiber causing depolarization of adjacent muscle fibers
contractility
-creation of force
-pulling two bones closer together
-actively resisting the separation of two bones
elasticity
-a stretched muscle returning to it original length
-passively resisting the separation of two bones
extensibility
-stretching a muscle
-increasing sarcomere length
, Identify the energy system that would be most important for each of the following activities. -
Answers Phosphagen system
-swatting at a mosquito
-jumping on the bed
-pitching a baseball
-swinging a golf club
-during a soccer game, jumping up to head a ball
Glycogen-lactic acid system
-running up a coupe flights of stairs
-running the 400-meter dash
-performing 25 push-ups
-during a 10K run, sprinting up a 200-meter-long hill
Aerobic Respiration supported by cardiopulmonary function
-walking across campus
-sitting upright at your desk writing a report
-standing while giving a classroom presentation
-marathon running
-jogging on the beach
Click and drag each event into the appropriate category based on whether it would be
associated with a contraction or no contraction. - Answers No concentration
-active transport of Ca^2+ into the sarcoplasmic reticulum
-a mutation to troponin that prevents it from binding Ca^2+
-a mutation to tropomyosin that prevents it from binding to troponin
-an inhibitor of voltage-gated Na+ channels
Which of the following is/are a characteristic of skeletal muscle? Check all that apply. - Answers
-Overlapping thin and thick filaments
-Striations
-Overlapping myosin and actin proteins
-Excitability
Assign each example to the universal muscle characteristic being described. - Answers
excitability
-placing muscle in a solution containing calcium & ATP
conductivity
-action potentials in the center of the fiber radiating to the ends
-depolarization of a single muscle fiber causing depolarization of adjacent muscle fibers
contractility
-creation of force
-pulling two bones closer together
-actively resisting the separation of two bones
elasticity
-a stretched muscle returning to it original length
-passively resisting the separation of two bones
extensibility
-stretching a muscle
-increasing sarcomere length
, Identify the energy system that would be most important for each of the following activities. -
Answers Phosphagen system
-swatting at a mosquito
-jumping on the bed
-pitching a baseball
-swinging a golf club
-during a soccer game, jumping up to head a ball
Glycogen-lactic acid system
-running up a coupe flights of stairs
-running the 400-meter dash
-performing 25 push-ups
-during a 10K run, sprinting up a 200-meter-long hill
Aerobic Respiration supported by cardiopulmonary function
-walking across campus
-sitting upright at your desk writing a report
-standing while giving a classroom presentation
-marathon running
-jogging on the beach
Click and drag each event into the appropriate category based on whether it would be
associated with a contraction or no contraction. - Answers No concentration
-active transport of Ca^2+ into the sarcoplasmic reticulum
-a mutation to troponin that prevents it from binding Ca^2+
-a mutation to tropomyosin that prevents it from binding to troponin
-an inhibitor of voltage-gated Na+ channels
