NMDCAT Quiz Biology//Support and Movement

A detailed illustration of human skeletal muscle anatomy, highlighting muscle fibers, bands, and contraction mechanisms in an educational style.

Understanding Muscle Function

Welcome to the NMDCAT Quiz on Biology focused on support and movement in muscle function. Test your knowledge of how muscles operate, their anatomy, and the biochemical processes involved in muscle contraction.

This quiz is designed for students preparing for their NMDCAT exams. Check out what you will learn:

The role of calcium in muscle contraction.
Types of muscle fibers and their characteristics.
Muscle fatigue and energy sources.

20 Questions5 MinutesCreated by LiftingBrain247

When the muscle is required to contract, calcium ions bind with which molecule and cause them to move slightly:

Tropomyosin

Troponin

Actin

Myosin

During contraction of a skeletal muscle, the degree of contraction depend upon:

The type of scleral muscle

Number of sarcomeres involved

Number of muscle fibers participate in contraction

Size of muscle

Thin myofilament consists of:

Actin, myosin, troponin

Actin, tropomyosin, troponin

Actin, tropomyosin, fibrin

Actin, myoglobin, troponin

Which of the following changes occur when skeletal muscle contract?

The A-band shortens

The I-band shortens

The Z-lines move further apart

The H-zone becomes more visible

All the fibers innervated by a single motor neuron called as:

Motor box

Neuron-unit

Muscle unit

Motor-unit

Each A-band has a lighter stripe in its mid-section called:

A-zone

M-zone

H-zone

Z-line

During evolution , the muscles not evolved first:

Cardiac

Skeletal

Smooth

Both cardiac and skeletal

A sarcomere is a region between two:

A-bands

H-bands

Z-lines

I-bands

If the muscles were deprived of ATP, which of the following would not be affected:

Na pump of muscle membrane

Ca pump of sarcoplasmic reticulum

Length of myosin filament

Velocity of shortening

Sarcoplasm refers to a specific kind of:

Cytoplasm

Nucleoplasm

Protoplasm

Muscle cell

The primary source of energy in muscle cell is:

Glucose

ATP

Creatine phosphate

Glycogen

Not correct for Pectoral Muscle:

Striated muscle

Striped muscle

Skeletal muscle

Involuntary muscle

Amount of lactic acid restored to glycogen during rest is:

1/5th

4/5th

1/4th

3/4th

Sarcoplasm has more:

Hemoglobin

Glycogen

Myoglobin

Water in the cytosol

The brachialis muscle on the contraction lifts the,

Radius

Humerous

Ulna

Fibula

Bicep muscle:

Flexar

Extensor

Involved in locomotion

Helping in sitting

Muscles with no branched fibers and multinucleate:

Smooth

Cardiac

Skeletal

Some smooth muscles at earlier stages of development

Muscle get fatigued;

Smooth

Cardiac

Skeletal

Cardiac muscles during development

Muscle fatigue is due to:

Deprivation of ATP and deposition of lactic acid

Deposition of ATP and lack of lactic acid

Lack of ATP and lactic acid

Deposition of ATP and deposition of lactic acid

An oxygen debt develops during:

An aerobic work

Aerobic work

Tetany

Tetanus

NMDCAT Quiz Biology//Support and Movement

Understanding Muscle Function

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