BIO 210 EXAM 3 Questions with Complete
Solutions
Ca2+ and ATP Excitation-contraction coupling requires which of the following substances?
storing energy in the form of a phosphate group, that will be transferred to ADP to resynthesize
ATP Creatine phosphate functions in the muscle cell by
the arrangement of myofilaments in sarcomeres What produces the striations of a
skeletal muscle cell?
myoglobin The oxygen-binding protein found in muscle cells is
sarcomeres The contractile functional units of skeletal muscles are
bind to regulatory sites on troponin to allow tropomyosin to move and reveal actin binding sites
What is the role of calcium ions in muscle contraction?
, act as friction-reducing structures Tendon sheaths
a first-class lever Which type of lever is demonstrated by using scissors?
the difference in the positioning of the effort, load, and fulcrum What is the major factor
controlling how levers work?
latissimus dorsi Which of the following is not a muscle involved in the breathing process?
the total number of muscle cells or fiber available for contraction What is the main factor
that determines the power of a muscle?
an agonist What is a muscle that provides the major force for producing a specific
movement called?
the muscle has 2, 3, or 4 origins, respectively When the term biceps, triceps, or
quadriceps is part of a muscle's name, what does it indicate?
Solutions
Ca2+ and ATP Excitation-contraction coupling requires which of the following substances?
storing energy in the form of a phosphate group, that will be transferred to ADP to resynthesize
ATP Creatine phosphate functions in the muscle cell by
the arrangement of myofilaments in sarcomeres What produces the striations of a
skeletal muscle cell?
myoglobin The oxygen-binding protein found in muscle cells is
sarcomeres The contractile functional units of skeletal muscles are
bind to regulatory sites on troponin to allow tropomyosin to move and reveal actin binding sites
What is the role of calcium ions in muscle contraction?
, act as friction-reducing structures Tendon sheaths
a first-class lever Which type of lever is demonstrated by using scissors?
the difference in the positioning of the effort, load, and fulcrum What is the major factor
controlling how levers work?
latissimus dorsi Which of the following is not a muscle involved in the breathing process?
the total number of muscle cells or fiber available for contraction What is the main factor
that determines the power of a muscle?
an agonist What is a muscle that provides the major force for producing a specific
movement called?
the muscle has 2, 3, or 4 origins, respectively When the term biceps, triceps, or
quadriceps is part of a muscle's name, what does it indicate?
