EASY
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Locomotion is the function of _____.

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Important Questions on Locomotion and Movement

EASY
Biology>Human Physiology>Locomotion and Movement>The Muscular System
Regulatory proteins in a myofibril are
EASY
Biology>Human Physiology>Locomotion and Movement>The Muscular System
Arrange the following in a sequence from edge to centre in a sarcomere.
A) M-line
B) Z-line
C) H-zone
D) I-band
EASY
Biology>Human Physiology>Locomotion and Movement>The Muscular System
Which one of the following proteins does not play a role in skeletal muscle contraction?
MEDIUM
Biology>Human Physiology>Locomotion and Movement>The Muscular System
Which of the following statements about muscles are correct?
(i) Muscles show three essential properties such as excitability, conductivity and contractility.
(ii) Muscular tissue is endodermal in origin except muscle of iris and ciliary body.
(iii) The cytoplasm of muscle fibre has several myofibrils.
(iv) Skeletal muscles exhibit slow and prolonged contractions.
(v) The regular arrangement of myosin and actin filaments is responsible for alternate dark and light bands of striated muscle.
MEDIUM
Biology>Human Physiology>Locomotion and Movement>The Muscular System
In the resting muscle fibre, tropomyosin partially covers
EASY
Biology>Human Physiology>Locomotion and Movement>The Muscular System
Myoglobin is found abundantly in:
EASY
Biology>Human Physiology>Locomotion and Movement>The Muscular System
The dark bands (A-bands) of a skeletal muscle are known as
MEDIUM
Biology>Human Physiology>Locomotion and Movement>The Muscular System
What is source of energy for muscle contraction?
EASY
Biology>Human Physiology>Locomotion and Movement>The Muscular System
Light bands of muscle fibres are made of the protein
MEDIUM
Biology>Human Physiology>Locomotion and Movement>The Muscular System
The term, "recovery oxygen uptake" after exercise is used to describe which of the following?
EASY
Biology>Human Physiology>Locomotion and Movement>The Muscular System
The type of muscle fibre present in the wall of alimentary canal is
MEDIUM
Biology>Human Physiology>Locomotion and Movement>The Muscular System
Which one of the following statement is incorrect?
MEDIUM
Biology>Human Physiology>Locomotion and Movement>The Muscular System
Fill up the blanks in the following sentence by selecting the correct option.
The thin filaments of myofibril contain __(i)__ actin and two filaments of __(ii)__ protein along with __(iii)__ protein for masking binding site for myosin.
  (i) (ii) (iii)
(a) 1F troponin tropomyosin
(b) 1F tropomyosin troponin
(c) 2F troponin tropomyosin
(d) 2F tropomyosin troponin
EASY
Biology>Human Physiology>Locomotion and Movement>The Muscular System
The functional unit of the contractile system in the striped muscle is
MEDIUM
Biology>Human Physiology>Locomotion and Movement>The Muscular System
Your heart beats many times in a minute. Do you think you can control your heartbeat, making it faster or slower whenever you want?
HARD
Biology>Human Physiology>Locomotion and Movement>The Muscular System
Consider the following four statements (i) - (iv) and select the correct option.
(i) Actin is present in thin filament.
(ii) H-zone of striated muscle fibre represents both thick and thin filaments.
(iii) There are 11 pairs of ribs in man.
(iv) Sternum is present on ventral side of the body.
EASY
Biology>Human Physiology>Locomotion and Movement>The Muscular System
The globular head of myosin contains
MEDIUM
Biology>Human Physiology>Locomotion and Movement>The Muscular System

Given below is diagrammatic representation of an actin filament (thin filament) with labelled parts A, B and C. Which of the following are correct matches with respect to labelled parts and their description?

 

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EASY
Biology>Human Physiology>Locomotion and Movement>The Muscular System
Smooth muscles are
MEDIUM
Biology>Human Physiology>Locomotion and Movement>The Muscular System
Myoglobin is present in