Based on location how many types of muscles are reported?

  • Three, skeletal, visceral and cardiac

  • Two, smooth and skeletal

  • Four, skeletal, visceral, cardiac and Digestive system's muscles

  • Only one ie contractile muscles

The muscles which have striped appearance under the microscope can be

  • Striated muscles

  • Cardiac muscles

  • Skeletal muscles

  • All of these

The muscles which have no striations and are smooth in appearance, cannot be

  • Non striated muscles

  • Involuntary muscles

  • Visceral muscles

  • Cardiac muscles

Which of the following is not a feature of skeletal muscles?

  • Are associated with skeletal components of the body

  • Striped appearance

  • Voluntary control

  • Transportation of food through digestive tract

The primary function of skeletal muscles would not be

  • Locomotory actions

  • Change in body postures

  • Movement of gamete through genital tract

  • Both B and C

Which of the following is not a feature of Visceral muscles?

  • Located in visceral organs of the body like the alimentary canal

  • No striations and smooth in appearance

  • Involuntary muscles

  • Transportation of food through Digested tract and maintenance of body postures are Main functions of it.

Which of the following is not a feature of cardiac muscles?

  • Muscles of heart

  • Muscles assemble in a unbranched pattern

  • Striated

  • Involuntary

Which of the following is a syncitium?

  • Muscle

  • Muscle fibre

  • Myofilaments

  • Myofibrils

Sarcoplasmic reticulum, sarcolemma, sarcoplasm are the features of

  • Muscle fibre

  • Myofibrils

  • Myofilaments

  • Muscle

Which of the following is not a characteristic feature of muscle fibres?

  • Myofilaments

  • Myofibrils

  • Thickness of muscle fibre

  • Both B and C

Myofibrils has not

  • Alternate dark and light bands

  • Striated appearance because of distribution pattern of two important proteins- Actin and Myosin

  • Both A and B

  • Sarcolemma

The light band has….. and is called….

  • Actin, A band

  • Actin,. I band

  • Myosin, M band

  • Myosin, A band

I in light band of muscle fibril stands for

  • Isotropic

  • Isolated

  • Innervated

  • Inosonic

A in dark band of muscle fibril stands for

  • Anisotropic

  • Animated

  • Ancient

  • Annulated

Which of the following is not a correct match?

  • Light band - I band

  • Dark band- H band

  • Light band- Actin

  • Dark band- Myosin

Actin and Myosin in muscle fibril are arranged

  • Parallel to each other and perpendicular to the longitudinal axis of the myofibrils

  • Perpendicular to each other and parallel to the longitudinal axis of the myofibrils

  • Parallel to each other and parallel to the longitudinal axis of the myofibrils

  • Perpendicular to each other perpendicular to the longitudinal axis of the myofibrils

Which of the following is/are attributed with Actin filament?

  • Thin filament

  • Light bands

  • Isotropic bands

  • all of these

Which of the following is not true regarding Z line?

  • Made up of elastic fibres

  • Present in centre of each I band

  • It bisects the I band

  • Thin Filaments are superficially touching to Z line.

Which of the following is not true regarding M line?

  • Thin membrane

  • Fibrous

  • Holds thick filament of A band

  • Keeps the Actin filament in centre

Sarcomere is

  • Functional unit of contraction

  • Portion between two successive Z lines

  • A part of myofibrils

  • All of these

H zone is not

  • Central portion of thin filament.

  • Central portion of thick filament

  • Present in resting state

  • Both A and C

The Central portion of thick filament is not overlapped by thin filament during…….. and is known as

  • Motion, Z line

  • Motion, H zone

  • Resting State, H zone

  • Resting state, Z line

Thin filament is made up of two.....which in turn are made up of many…..

  • F actins, G actins

  • G actins, Factins

  • G actins, g actins

  • F actins, f actins

How many G actins are there in a thin filament?

  • Two Filaments of many G actins

  • One filament of hundreds of G actin

  • Two Filaments of two hundreds of G actin

  • Two Filaments of two G actins

How many Filaments are there in thin filament?

  • Two F-actin Filaments and two tropomyosin filaments

  • Two F-actin Filaments and one tropomyosin filaments

  • One F-actin filament and one tropomyosin filament

  • One F-actin and two tropomyosin filament

Subunit of troponin masks the

  • Active binding sites for Myosin on actin

  • Active binding sites for actin on Myosin

  • In resting state, active binding sites for Myosin on actin

  • In resting state, active binding sites for actin on Myosin

Each Myosin filament is also a

  • Polymeric Protein

  • Monomeric Protein

  • Monomeric Glycoprotein

  • Polymeric Glycoprotein

Which of the following is a monomeric protein of thick filament?

  • Troponin

  • Meromyosins

  • Macromyosins

  • Tropomyosin

Each meromyosin has two

  • globular head with a short arm

  • Important part- HMM and LMM

  • Tails and one head

  • Short arms and one tail

The HMM of muscle fiber has not got

  • Head

  • Short arm

  • Tail

  • Both 2 and 3

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Practice Zoology Quiz Questions and Answers