Free Support and Movement MCQs with Answers
738 Support and Movement MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Support and movement covers the axial and appendicular skeleton, bone structure, joints and the arrangement of skeletal muscles. Muscle contraction is explained through actin, myosin, sliding filaments, calcium ions and ATP, while arthritis is distinguished as a disorder of joints rather than a normal part of movement.
Last updated
Read the Support and Movement notesFree MDCAT chapter notes with key terms738 questions · page 14 of 37
- A. Thick filaments
- B. M-line
- C. H-zone
- D. All of these options are correct
Explanation: The H zone-the central region of the A zone-contains only thick filaments and is shortened during contraction.
Correct answer: H-zone- A. The A-band becomes short.
- B. The I-band elongates.
- C. There is no change in the sarcomere length.
- D. The Z-lines get closer.
Explanation: When a sarcomere contracts, the Z lines move closer together, and the I-band gets smaller.
Correct answer: The Z-lines get closer.- A. Nerve impulse
- B. Energy
- C. Calcium
- D. All of these options are correct
Explanation: Muscle contraction begins when the nervous system generates a signal. The signal, an impulse called an action potential, travels through a…
Correct answer: All of these options are correct- A. Oxygen
- B. Adenosine
- C. Cytosine
- D. Phosphate
Explanation: By adding a phosphate group, ADP is transformed into ATP. The phosphate group is transferred by creatine phosphate, which forms creatinine…
Correct answer: Phosphate- A. Flexion and extension
- B. Adduction and abduction
- C. Rotation
- D. Extension flexion and rotation
Explanation: A pivot joint allows rotation around an axis, e.g., between the first and second neck vertebrae.
Correct answer: Rotation- A. Cervical region
- B. Lumbar region
- C. Pelvic region
- D. Thoracic region
Explanation: The coccyx, also known as the tailbone, is a small, triangular bone resembling a shortened tail located at the bottom of the spine in the…
Correct answer: Pelvic region- A. Appendicular skeleton
- B. Hydrostatic skeleton
- C. Exoskeleton
- D. Axial skeleton
Explanation: The axial skeleton forms a vertical axis that includes the head, neck, back, and chest.
Correct answer: Axial skeleton- A. Protein and Sodium Bicarbonate
- B. Protein and Calcium Carbonate
- C. Protein and Potassium Carbonate
- D. Protein and Sodium Carbonate
Explanation: Chitin is translucent and tough in its pure form, but it also combines with other materials to form a strong outer structure.
Correct answer: Protein and Calcium Carbonate- A. Hip and shoulder joints
- B. Hip and knee joints
- C. Shoulder and knee joints
- D. Hip and elbow joints
Explanation: The ball and socket joint also called as the spheroidal joint is a joint in which the ball-like rounded surface of a bone moves within a…
Correct answer: Hip and shoulder joints- A. Exoskeleton
- B. Appendages
- C. Endoskeleton
- D. Reduced mitosis
Explanation: As the body underneath the exoskeleton grows, the animal begins to outgrow its tough exterior.
Correct answer: Exoskeleton- A. Sarcolemma
- B. Epimysium
- C. Both A and B
- D. Microtubules
Explanation: The outermost sheath of connective tissue covering each muscle is called 'Epimysium'.
Correct answer: Epimysium- A. Trachea
- B. Collenchyma cells
- C. Sclereids
- D. Tracheids
Explanation: The trachea is an organ, not a cell so it cannot be Option A. Collenchyma cells can reach up to 2.5mm. Sclereids are typically 1mm.
Correct answer: Tracheids- A. Chlorenchyma
- B. Mesoderm
- C. Sclerenchyma
- D. Mesenchyme
Explanation: Chlorenchyma, Mesoderm, and Sclerenchyma are cellular so the correct answer is D: Mesenchyme.
Correct answer: Mesenchyme- A. Motor unit
- B. Neuromuscular junction
- C. Neural unit
- D. Microtubules
Explanation: A motor unit consists of a motor neuron and all the muscle fibers it supplies so the correct answer is Option A.
Correct answer: Motor unit- A. Silica
- B. Polyester threads
- C. Groups of cell fibers
- D. Calcium and phosphorous
Explanation: Option (c) suggests that muscles are composed of groups of cell fibers. This statement is partly correct.
Correct answer: Groups of cell fibers- A. Tendon
- B. Ligament
- C. Reticular tissue
- D. Cartilage
Explanation: Option (a) is correct. Tendons are fibrous connective tissues that attach muscles to bones.
Correct answer: Tendon- A. Better adapted for slow sustained activities.
- B. For energy, they depend on fatty acids.
- C. The myoglobin content is high.
- D. Possess mitochondria in huge numbers.
Explanation: Option A is incorrect as smooth muscles are better adapted for slow sustained activity.
Correct answer: The myoglobin content is high.- A. Cardiac tissue
- B. Connective tissue
- C. Epithelial tissue
- D. Nervous tissue
Explanation: Correct option is B. Cartilage is a form of connective tissue. Cartilage is a strong, flexible connective tissue that protects your joints…
Correct answer: Connective tissue- A. Tropomyosin
- B. Troponin C
- C. Troponin I
- D. Troponin T
Explanation: Correct option is B. Calcium is released from the sarcoplasmic reticulum through calcium ion channels when the membrane of the T-tubular…
Correct answer: Troponin C- A. Z-line
- B. Actin
- C. Sarcomere
- D. Sarcolemma
Explanation: A sarcomere is the basic contractile unit of a myocyte (muscle fibre). A sarcomere is composed of two main protein filaments (thin actin…
Correct answer: Sarcomere