CORRECT ANSWERS - - CORRECT ANSWERS - ALREADY GRADED A+ Which of th...

EEOB Final ACTUAL EXAM 300 QUESTIONS AND

CORRECT ANSWERS -

ALREADY GRADED A+

Which of these pairs is correctly ordered (earlier than later) set of events from the neuromuscular

junction? NOTE: immediately adjacent is not required (e.g., AB, BD, CF).

• Exocytosis of acetylcholine- influx of potassium into the myofiber
• Acetylcholine binding to membrane-bound receptor- depolarization
• Voltage-gated sodium channels open- ligand-gated sodium channels open
• Acetylcholine binds to transporter- action potentials occur along myofiber
• Acetylcholine binding to membrane-bound receptor- depolarization

Which of these pairs is correctly ordered (earlier than later) set of events from the neuromuscular

junction? NOTE: immediately adjacent is not required (e.g., AB, BD, CF).

• Exocytosis of acetylcholine- influx of potassium into the myofiber
• Acetylcholine binding to membrane-bound receptor- depolarization
• Voltage-gated sodium channels open- ligand-gated sodium channels open
• Acetylcholine binds to transporter- action potentials occur along myofiber
• Acetylcholine binding to membrane-bound receptor- depolarization

Actin has/have _____ binding site(s) that regularly have binding/unbinding occur and actin forms the entirety of the _____ band.A.) Two-light B.) Two-dark C.) One-light D.)One-dark

• One-light

Actin has/have _____ binding site(s) that regularly have binding/unbinding occur and actin forms the entirety of the _____ band. 1 / 4

• One-light
• One-dark
• Two- light
• Two- Dark
• One- light

Actin has/have _____ binding site(s) that regularly have binding/unbinding occur and actin forms the entirety of the _____ band.

• One-light
• One-dark
• Two- light
• Two- Dark
• One- light

Billy Ireland is drawing the process by which a toxin prevents skeletal muscle contraction. He would correctly accomplish this task by having the toxin acting as an antagonist for

• Acetylcholinesterase
• Calcium
• Sodium
• Calcium Channels
• Calcium

Billy Ireland is drawing the process by which a toxin prevents skeletal muscle contraction. He would correctly accomplish this task by having the toxin acting as an antagonist for

• Acetylcholinesterase
• Calcium

C)Sodium

• Calcium Channels 2 / 4

• Calcium

Billy Ireland is drawing the process by which a toxin prevents skeletal muscle contraction. He would correctly accomplish this task by having the toxin acting as an antagonist for

• Acetylcholine
• Tropomyosin
• Sodium
• Calcium Channels
• Acetylcholine

An A band contains

• An M line
• No thin myofibers
• An I band
• a sarcomere
• An M line

An A band contains

• A Z line
• Thin myofibers
• An I band
• A sarcomere
• Thin myofibers

An A band contains

• An M line
• No thin myofibers 3 / 4

• An I band
• a sarcomere
• An M line

Phys Phab Najima uses the magic shrink ray on protein size setting to view a contraction skeletal myofiber. She correctly expects to view

• The amount of intracellular calcium to be changing
• Closeby interstitial fluid only when close to the surface of the myofiber
• The z-lines/discs moving
• Calcium attached to some tropomyosin
• The z-lines/discs moving

Phys Phab Najima uses the magic shrink ray on protein size setting to view a contraction skeletal myofiber. She correctly expects to view

• The amount of intracellular calcium to be changing
• Closeby interstitial fluid only when close to the surface of the myofiber
• The z-line/discs remaining the same locations relative to eachother
• Calcium attached to some troponin
• Calcium attached to some troponin

Phys Phab Najima uses the magic shrink ray on protein size setting to view a contraction skeletal myofiber. She correctly expects to view

• The amount of intracellular calcium to not be changing
• Closeby interstitial fluid only when close to the surface of the myofiber
• The z-line/discs remaining the same locations relative to each other
• Calcium attached to some tropomyosin
• The amount of intracellular calcium to not be changing

• / 4