Biology · General Awareness

Muscle Biology

836 Questions

Muscle biology covers the structures, functions, and contraction mechanisms of skeletal, cardiac, and smooth muscles. Test questions target filaments, stimuli, and specific muscle roles. A clear understanding helps secure marks in biology sections.

Skeletal muscle controlCardiac muscle propertiesMuscle contraction mechanismActin and myosin filamentsMuscle functions

Muscle Biology Questions

Multiple choice biology multicellular structure: tissue defense mechanism in plants epidermal tissue system kinds of plant tissue permanent tissues and their types

Out of the following, find the odd one out. 

  1. Epiblema

  2. Muscle fibre

  3. Nerve fibre

  4. Skin
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Muscle fibre, nerve fibre,and skin are present in the animal body. Epiblema is a special epidermal cells present in rootlets. They are specially adapted for absorbing liquids. Epiblema is present in plants. 

So, the correct answer is option A.

Multiple choice biology skeleton - movement and locomotion gait of animals basics of joints joints and type of joints skeleton, joints and muscles

Major constituent of human body is

  1. Skeleton

  2. Muscles

  3. Connective tissue

  4. Extracellular fluid
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

  • A skeleton is the hard structure that protects the internal organs of a living thing. 
  • Skeletons can be inside the body or outside the body. 
  • In mammals, which include humans, the skeleton is made of bones. 
  • All the bones, when they are joined together, make the "skeletal system" of a body. Hence, the major constituent of the human body is a skeleton.
So, the correct answer is 'skeleton'.

Multiple choice evs - i substances, objects and energy renewable and non-renewable resources renewable and non-renewable sources of energy solar energy and its applications renewable resources alternative fuels and energy sources alternative sources of energy

The muscular energy required by our body is given to us by :

  1. air

  2. water

  3. oxygen

  4. food
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Food provides the chemical energy that our bodies convert into muscular and other forms of energy through metabolic processes.

Multiple choice biology transport in animals cardiac cycle heart, blood vessels and cardiac cycle human heart

'Bundle of His' is a network of

  1. Muscle fibres distributed throughout the heart walls

  2. Muscle fibres found only in the ventricle wall

  3. Nerve fibres distributed in ventricles

  4. Nerve fibres found throughout the heart
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

'Bundle of His' is a network of muscle fibres, found in the walls of ventricles. They originate from AV node and further give rise to Purkinje fibres. This helps in maintaining the rhythmic contraction of the ventricles. 

Multiple choice biology animal tissue muscle tissue structure of protein muscle tissues

All the following are examples of connective tissue except _______________.

  1. Tendons

  2. Ligaments

  3. Muscle

  4. Adipose tissue
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Connective tissue serves a connecting function. It supports and binds other tissues in the body. This tissue typically has cells scattered throughout an extracellular matrix of fibrous proteins and glycoproteins attached to a basement membrane. The primary elements of connective tissue include a ground substance, fibres, and cells. Adipose tissue is a type of specialised connective tissue and the ligaments and the tendons belong to the dense type of connective tissue while the muscle belongs to another class of tissues namely muscle tissue which are different from the connective tissue.
So, the correct answer is 'Muscle'.
Multiple choice biology animal tissue muscle tissue structure of protein muscle tissues

Movement in body are brought about by?

  1. Muscular tissue

  2. Epithelial tissue

  3. Bones

  4. Tendon and ligaments
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The main function of the muscular system is movement. Muscles are the only tissue in the body that has the ability to contract and therefore move the other parts of the body & the maintenance of the body posture & body position.

So, the correct option is 'Muscular tissue'.

Multiple choice biology animal tissue muscle tissue structure of protein muscle tissues

Contractile proteins are found in_________________.

  1. Bones

  2. Blood

  3. Muscles

  4. Cartilage
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

From all the above options, only muscle has a property of contraction. Muscle possess contractile proteins named, acitn and myosin on myofibrils. Hence, option C is correct. 

Multiple choice zoology tissue level of organisation muscle tissue structure of protein muscle tissues

Which is true of contractile tissue of sphincter?
$1.$ Mesodermal
$2$. Contain stretch receptors
$3$. Rhythmicity
$4$. Indefatigible.

  1. All the four
  2. Only $1, 2$ and $3$
  3. Only $1, 2$ and $4$
  4. Only $1, 3$ and $4$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sphincter muscles are typically smooth muscles (mesodermal), contain stretch receptors to regulate tone, and exhibit rhythmicity in some cases (like the pyloric sphincter). They are generally not indefatigable; like other muscles, they can fatigue.

Multiple choice biology multicellular structure: tissue muscle tissue structure of protein muscle tissues

Involuntary muscle fibres are unique of

  1. Diaphragm; eye muscles; intercostal muscle

  2. Urinary bladder; blood vessels

  3. Both A and B

  4. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Involuntary muscles are those, which are not under our control. Diaphragm muscles are internal muscle, that divides the thorax and the abdomen and are involuntary. The walls of large organs like stomach, intestines, uterus and urinary bladder are involuntary.
Thus, the correct answer is option (C), 'Both (A) and (B)'.

Multiple choice biology multicellular structure: tissue muscle tissue structure of protein muscle tissues

Their contraction is involuntary, vigorous and rhythmic holds true for

  1. Striated muscles

  2. Cardiac muscles

  3. Unstriated muscles

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Cardiac muscles are the muscles of the heart. They are self-contracting, autonomically regulated (meaning involuntary and must continue to contract in a rhythmic fashion for the whole life of the organism.
Thus, the correct answer is option (B), 'Cardiac muscles'.

Multiple choice biology multicellular structure: tissue muscle tissue structure of protein muscle tissues

Which one of these muscles tires out easily?

  1. Cardiac

  2. Unstriated

  3. Striated

  4. All of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Skeletal muscle fiber or striated muscles are characterized as fast or slow based on their activity patterns. Fast, also called white muscle fibers, contract rapidly, have poor blood supply, operate without oxygen and tire quickly.
Thus, the correct answer is option (C), 'Striated'.

Multiple choice biology multicellular structure: tissue muscle tissue structure of protein muscle tissues

High contents of myoglobin and cytochromes are present in

  1. Red muscles

  2. White muscles

  3. Intermediate muscles

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Red muscle gives a fused contraction at a slower frequency of stimulation. The red color of muscles is due partly to myoglobin, which is probably freely dissolved in the sarcoplasm and partly to the cytochrome, which are mainly associated with the particulate components of the cytoplasm.
Thus, the correct answer is option (A), 'Red muscles'.