Here, you will get Class 11 Biology MCQ of Chapter 20 Locomotion And Movement for cracking NEET/AIIMS. By solving these MCQs of Class 11 Biology Chapter 20 Locomotion And Movement, you will get the confidence to crack NEET. Practice MCQ Questions for Class 11 Biology with Answers on a daily basis and score well in exams.
Locomotion And Movement Class 11 MCQs Questions with Answers
The elements associated with muscle contraction are
(a) Mg and Ca
(b) Mg and Cl
(c) Na and Ca
(d) Ca and K
Answer: (c) Na and Ca
Match the columns.
A. Hinge Joint – 1. Carpals
B. Saddle Joint – 2. Knee
C. Pivot Joint – 3. Thumb
D. Gliding Joint – 4. Vertebra
(a) A-4, B-3, C-1, D-2
(b) A-3, B-1, C-2, D-4
(c) A-2, B-3, C-4, D-1
(d) A-3, B-1, C-4, D-2
Answer: (c) A-2, B-3, C-4, D-1
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: (d) Iris – Involuntary smooth muscle
Long bones function in
(a) support
(b) support, erythrocyte and leucocyte synthesis
(c) support and erythrocyte synthesis
(d) erythrocyte formation
Answer: (b) support, erythrocyte and leucocyte synthesis
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: (c) Nematode sperms
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: (b) Osteoporosis – decrease in bone mass and higher chance of fractures with advancing age
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: (b) Z line and Z line
A functional G-Actin molecule in its free state is bound to
(a) Sodium ion and ATP
(b) Manganese ion and ATP
(c) Magnesium ion and ATP
(d) None of the above
Answer: (c) Magnesium ion and ATP
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: (a) More than other muscles fibres
The membranous areas between the cranial bones of the foetal skull are called
(a) Sutures
(b) Areolas
(c) Foramina
(d) Fontanelle
Answer: (d) Fontanelle
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: (b) muscle injury
Which is a part of pectoral girdle?
(a) Acetabulum
(b) Ilium
(c) Sternum
(d) Glenoid cavity
Answer: (d) Glenoid cavity
What happens in osteoporosis?
(a) Decrease in progesterone
(b) Increase in progesterone
(c) Decrease in estrogen
(d) Both 2 and 3
Answer: (c) Decrease in estrogen
Which one of the following pairs is wrong about cardiac muscles?
(a) Location – only in the heart
(b) Function – Pumping of blood
(c) Gap junctions – No
(d) Striated – Yes
Answer: (c) Gap junctions – No
Which one of the following is correct pairing of a body part and the kind of muscle tissue that moves it?
(a) Iris – Involuntary smooth muscle
(b) Heart wall – Involuntary unstriated muscle
(c) Biceps of upper arm – Smooth muscle fibres
(d) Abdominal wall – Smooth muscle
Answer: (a) Iris – Involuntary smooth muscle
Hyoid is a
(a) cavity
(b) cartilage
(c) bone
(d) fluid
Answer: (c) bone
Ilium, ischium, and pubis join at the ______ to form coxal bone
(a) Acetabulum
(b) Ilium
(c) Sternum
(d) Glenoid cavity
Answer: (a) Acetabulum
Which joint occurs between humerus and radioulna?
(a) Ball and socket joint
(b) Sliding
(c) Pivot
(d) Hinge joint
Answer: (d) Hinge joint
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: (c) same as that of whale
______ is used to capture prey in Hydra
(a) Cilia
(b) Flagella
(c) Tentacles
(d) Forelimbs
Answer: (c) Tentacles
Ilium, ischium, and pubis join at the __ to form coxal bone
(a) Acetabulum
(b) Ilium
(c) Sternum
(d) Glenoid cavity
Answer: (a) Acetabulum
Myo fibres also known as
(a) Sarco axis
(b) Sarco mysium
(c) Sarcostylets
(d) None of the above
Answer: (c) Sarcostylets
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: (b) Foramen magnum
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: (b) The central gap between actin filaments extending through myosin filaments in the A-band
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: (c) Depression in the skull in the area of pituitary gland
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