Sliding Filament Quiz

Description

Short knowledge check to see understanding of sliding filament theory
Phillip McKelvey
Quiz by Phillip McKelvey, updated more than 1 year ago
Phillip McKelvey
Created by Phillip McKelvey almost 8 years ago
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Resource summary

Question 1

Question
What proteins are found in a sarcomere?
Answer
  • Only Actin and Myosin
  • Actin, Myosin, Troponin and Tropomyosin
  • The Myofibril
  • The Sarcoplasmic Reticulum

Question 2

Question
Myofibrils have light and dark bands called neuromuscular junctions.
Answer
  • True
  • False

Question 3

Question
The contractile elements of muscle fibres are called ________.
Answer
  • Sarcoplasm
  • Myofibrils
  • The Sarcoplasmic Reticulum
  • Fasciculi

Question 4

Question
The sliding filament theory of muscle contraction involves;
Answer
  • Calcium ions releasing ATP for energy
  • Calcium ions binding with troponin, which shifts tropomyosin and allows the myosin-binding sites on actin to be exposed
  • Neuromuscular junctions directly producing the movement of actin and myosin
  • Actin filaments moving the myosin filaments in each sarcomere

Question 5

Question
The junction between a nerve and a muscle is called a_____________.
Answer
  • Neuromuscular junction
  • Synapse
  • Sarcomere
  • Neurotransmitter

Question 6

Question
A muscle contraction begins with release of _______, which reaches a sarcolemma, depolarizing the sarcolemma.
Answer
  • Calcium
  • ATP
  • Troponin
  • Acetylcholine
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