MEDIUM
Earn 100

What is the threshold stimulus for muscle contraction ?

Important Questions on Skeleton and Movement

HARD
Biology>Human Physiology>Skeleton and Movement>Properties of Muscles on Electrical Stimulation
Due to constant writing, muscles of hands show fatigueness because_____.
MEDIUM
Biology>Human Physiology>Skeleton and Movement>Properties of Muscles on Electrical Stimulation
Choose the incorrect statement about muscle contraction from the following:
EASY
Biology>Human Physiology>Skeleton and Movement>Properties of Muscles on Electrical Stimulation
Distinguish between red muscle fires and white muscle fibres,
HARD
Biology>Human Physiology>Skeleton and Movement>Properties of Muscles on Electrical Stimulation

How does muscle cells change their shape?

MEDIUM
Biology>Human Physiology>Skeleton and Movement>Properties of Muscles on Electrical Stimulation
Sliding filament theory can be best explained as:
HARD
Biology>Human Physiology>Skeleton and Movement>Properties of Muscles on Electrical Stimulation

During muscular contraction which of the following events occur?
(a) 'H' zone disappears
(b) 'A' band widens
(c) 'I' band reduces in width
(d) Myosin hydrolyzes ATP, releasing the ADP and Pi
(e) Z-lines attached to actins are pulled inwards.

Choose the correct answer from the options given below.

EASY
Biology>Human Physiology>Skeleton and Movement>Properties of Muscles on Electrical Stimulation
Which of the following will NOT be triggered by the release of acetylcholine in the synapse at the neuromuscular junction during muscle contraction?
EASY
Biology>Human Physiology>Skeleton and Movement>Properties of Muscles on Electrical Stimulation
Identify the correct statement with reference to shortening of sarcomere
HARD
Biology>Human Physiology>Skeleton and Movement>Properties of Muscles on Electrical Stimulation
Which statement is correct with respect to muscle contraction?
EASY
Biology>Human Physiology>Skeleton and Movement>Properties of Muscles on Electrical Stimulation
Study the following sentence:

I. The accumulation of pyruvic acid in the muscle causes fatigue.

II. ATP is resynthesized in the muscle by the phosphorylation of ADP by a phosphogen.

III. Cori and Cori's cycle occurs in the muscles.

IV. The phosphogen in the vertebrate muscle is arginine phosphate.

The correct set of answers for muscle contraction is
MEDIUM
Biology>Human Physiology>Skeleton and Movement>Properties of Muscles on Electrical Stimulation
Which is not true for red fibres?
EASY
Biology>Human Physiology>Skeleton and Movement>Properties of Muscles on Electrical Stimulation
During muscle contraction
HARD
Biology>Human Physiology>Skeleton and Movement>Properties of Muscles on Electrical Stimulation
Which of the following option shows correct order of some stages of muscle contraction from the beginning to the end of the process?
EASY
Biology>Human Physiology>Skeleton and Movement>Properties of Muscles on Electrical Stimulation
Choose the wrongly matched pair.
HARD
Biology>Human Physiology>Skeleton and Movement>Properties of Muscles on Electrical Stimulation
Which of these events does not occur at neuromuscular junction of skeletal muscle on stimulation?
MEDIUM
Biology>Human Physiology>Skeleton and Movement>Properties of Muscles on Electrical Stimulation
Upon stimulation of skeletal muscles calcium is immediately made available for binding to troponin from:
EASY
Biology>Human Physiology>Skeleton and Movement>Properties of Muscles on Electrical Stimulation
When muscle contraction occurs in the body, all the following events occur, except:
MEDIUM
Biology>Human Physiology>Skeleton and Movement>Properties of Muscles on Electrical Stimulation

Represent the union of two sets by Venn diagram for each of the following.

X={x | x is a prime number between 80 and 100}

Y={y | y is an odd number between 90 and 100}

HARD
Biology>Human Physiology>Skeleton and Movement>Properties of Muscles on Electrical Stimulation
Describe the important steps in muscle contraction.
MEDIUM
Biology>Human Physiology>Skeleton and Movement>Properties of Muscles on Electrical Stimulation
Consider the following diagram showing four stages (A-D) of muscle contraction and select the option with the incorrect information regarding these stages.
Question Image