We have compiled the NCERT MCQ Questions for Class 11 Biology Chapter 20 Locomotion and Movement with Answers Pdf free download covering the entire syllabus. Practice MCQ Questions for Class 11 Biology with Answers on a daily basis and score well in exams. Refer to the Locomotion and Movement Class 11 MCQs Questions with Answers here along with a detailed explanation.
Locomotion and Movement Class 11 MCQs Questions with Answers
Question 1.
The only immediate source of energy for muscular contraction is
(a) ATP
(b) Phosphocreatinine
(c) Phosphoarginine
(d) Glucose
Answer
Answer: (a) ATP
Question 2.
Epimysium of muscle are made up of
(a) White fibrous connective tissue
(b) Adipose connective tissue
(c) Reticular connective tissue
(d) Areolar connective tissue
Answer
Answer: (a) White fibrous connective tissue
Question 3.
Isotonic contraction takes places during:
(a) Load on head
(b) Walking
(c) Exercise
(d) All of the above
Answer
Answer: (b) Walking
Question 4.
Sella turcica is
(a) Depression of long bone
(b) Ridge over a bone
(c) Depression in the skull in the area of pituitary gland
(d) Ridge in the skull over the area of pituitary gland
Answer
Answer: (c) Depression in the skull in the area of pituitary gland
Question 5.
Which joint occurs between humerus and radioulna?
(a) Ball and socket joint
(b) Sliding
(c) Pivot
(d) Hinge joint
Answer
Answer: (d) Hinge joint
Question 6.
Rigor mortis is:
(a) Contraction of muscles after death
(b) Contraction of muscles before death
(c) Shivering of muscles
(d) None of the above
Answer
Answer: (a) Contraction of muscles after death
Question 7.
ATPase enzyme needed for muscle contraction is located in
(a) Myosin
(b) Actin
(c) Troponin
(d) Actinin
Answer
Answer: (a) Myosin
Question 8.
Contractile unit of muscle fibres:
(a) H line
(b) Sarcomere
(c) H zone
(d) None of the above
Answer
Answer: (b) Sarcomere
Question 9.
Number of cervical vertebrae in camel is:
(a) more than that of rabbit
(b) less than that of rabbit
(c) same as that of whale
(d) more than that of horse
Answer
Answer: (c) same as that of whale
Question 10.
A meromyosin molecule doesn’t contain :
(a) arm
(b) trunk
(c) tail
(d) head
Answer
Answer: (b) trunk
Question 11.
Select the correct statement regarding the specific disorder of muscular or skeletal system:
(a) Muscular dystrophy – agerelated shortening or muscles.
(b) Osteoporosis – decrease in bone mass and higher chance of fractures with advancing age.
(c) Myastheniagrav is – Auto immune disorder which inhibits sliding of myosin filaments
(d) Gout – inflammation of joints due to extra deposition of calcium.
Answer
Answer: (b) Osteoporosis – decrease in bone mass and higher chance of fractures with advancing age.
Question 12.
One of following has contractile properties:
(a) Actin
(b) Coronin
(c) Troponin
(d) None of the above
Answer
Answer: (a) Actin
Question 13.
Which one of the following membranes secretes a watery fluid that lubricates and cushions the joint?
(a) Tendons
(b) Synovial membrane
(c) Ligaments
(d) Cartilage
Answer
Answer: (b) Synovial membrane
Question 14.
Mitochondria in cardiac muscles:
(a) More than other muscles fibres
(b) Less than other muscles fibres
(c) Equal than other muscles fibres
(d) None of the above
Answer
Answer: (a) More than other muscles fibres
Question 15.
Study of muscles is called
(a) Musclogy
(b) Mycology
(c) Myology
(d) Sarcology
Answer
Answer: (c) Myology
Question 16.
Which one of the following is the correct pairing of a body part and the kind of muscle tissue which moves it?
(a) Biceps of upper arm – Smooth muscle fibres
(b) Abdominal wall – Skeletal muscle
(c) Heart wall – Involuntary unstriated muscle
(d) Iris – Involuntary smooth muscle
Answer
Answer: (d) Iris – Involuntary smooth muscle
Question 17.
At the base of skull, a large hole is present which allows brain to continue with the spinal cord. That hole is called:
(a) Foramen ovale
(b) Foramen magnum
(d) Vertebral foramen
(d) Obturator foramen
Answer
Answer: (b) Foramen magnum
Question 18.
The H-zone in the skeletal muscle fibre is due to:
(a) The central gap between myosin filaments in the A-band.
(b) The central gap between actin filaments extending through myosin filaments in the A-band
(c) Extension of myosin filaments in the central portion of the A-band.
(d) The absence of myofibrils in the central portion of A-band.
Answer
Answer: (b) The central gap between actin filaments extending through myosin filaments in the A-band
Question 19.
Muscles are attached to bones via :
(a) Tendon
(b) Ligament
(c) Both (a) & (b)
(d) None of these
Answer
Answer: (a) Tendon
Question 20.
A deltoid ridge occurs in:
(a) Radius
(b) Ulna
(c) Femur
(d) Humerus
Answer
Answer: (d) Humerus
Question 21.
Skeletal muscle bundles [fascicles] are held together by a common connective tissue layer called:
(a) Perimysium
(b) Endomysium
(c) Fascia
(d) Aponeurosis
Answer
Answer: (c) Fascia
Question 22.
Myo fibres also known as:
(a) Sarco axis
(b) Sarco mysium
(c) Sarcostylets
(d) None of the above
Answer
Answer: (c) Sarcostylets
Question 23.
Papillary muscle found in:
(a) Heart
(b) Liver
(c) Kidney
(d) Lung
Answer
Answer: (a) Heart
Question 24.
Cori cycle relationship between the
(a) Muscle glycogen & liver glycogen
(b) Muscle glycogen & liver glucose
(c) Muscle glycogen & blood glucose
(d) All of the above
Answer
Answer: (a) Muscle glycogen & liver glycogen
Question 25.
Myoglobin was the first protein to have its three-dimensional structure revealed. Ravi was diagnosed with myoglobin in his bloodstream. This had occurred due to
(a) myasthenia gravis
(b) muscle injury
(c) conversion of Hb into Mb
(d) Arthritis
Answer
Answer: (b) muscle injury
Question 26.
What is the type of movable joint present between the atlas and axis?
(a) Gliding
(b) Saddle
(c) Hinge
(d) Pivot
Answer
Answer: (d) Pivot
Question 27.
The contractile unit of muscle is a part of myofibril between
(a) A band and I band
(b) Z line and Z line
(c) Z line and A band
(d) Z line and I band
Answer
Answer: (b) Z line and Z line
Question 28.
The membranous areas between the cranial bones of the foetal skull are called
(a) Sutures
(b) Areolas
(c) Foramina
(d) Fontanelle
Answer
Answer: (d) Fontanelle
Question 29.
Actin filaments are found in all eukaryotic cells but reportedly absent in
(a) Fish sperms
(b) Both (a) & (c)
(c) Nematode sperms
(d) Human sperms
Answer
Answer: (c) Nematode sperms
Question 30.
Myosin filament appear dark under microscope due to :-
(a) Dark colour
(b) Melanin colour
(c) Black colour
(d) Double-refractive index
Answer
Answer: (d) Double-refractive index
Question 31.
Long bones function in:
(a) support
(b) support, erythrocyte and leucocyte synthesis
(c) support and erythrocyte synthesis
(d) erythrocyte formation
Answer
Answer: (b) support, erythrocyte and leucocyte synthesis
Question 32.
A functional G-Actin molecule in its free state is bound to :
(a) Sodium ion and ATP
(b) Mangnese ion and ATP
(c) Magnesium ion and ATP
(d) None of the above
Answer
Answer: (c) Magnesium ion and ATP
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