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.
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- A. Chondrioblasts
- B. Chondriocutosis
- C. Chondrogenesis
- D. None of these
Explanation: Chondrification (also known as chondrogenesis) is the process by which cartilage is formed from condensed mesenchyme tissue.
Correct answer: Chondrogenesis- A. Pectoral
- B. Tensor
- C. Appendicular
- D. All of these
Explanation: Birds power flight primarily by large pectoralis muscles that depress the wings at the shoulder. Refer to the image below:
Correct answer: Pectoral- A. Tibia and fibula
- B. Humerus and ulna
- C. Humerus and scapula
- D. Ulna and radius
Explanation: Humerus and ulna - hinge jointHumerus and scapula - ball and socket jointUlna and radius - pivot jointTibia and fibula - synovial joint
Correct answer: Ulna and radius- A. 4
- B. 6
- C. 7
- D. 8
Explanation: There are eight carpal bones in hand arranged in two rows of four and four.
Correct answer: 8- A. Air spaces - Lighter body
- B. Pectoral muscles - Strong pull of wings
- C. Urinary bladder - Producing semisolid urine
- D. Keel - Attachment of muscles
Explanation: The urinary bladder, in most vertebrates, except birds, is the organ for the temporary storage of urine from the kidneys, connected to the…
Correct answer: Urinary bladder - Producing semisolid urine- A. Osteoclasts
- B. Osteoblasts
- C. Osteogenesis
- D. Osteocytes
Explanation: 'Osteoclasts' are multinucleated cells that derive from hematopoietic progenitors in the bone marrow, which also give rise to monocytes in…
Correct answer: Osteoclasts- A. Myosin and Actin
- B. Globulin and Albumin
- C. Troponin and Tropomyosin
- D. Fibrin and Fibrinogen
Explanation: The myofibrils are made up of thick and thin myofilaments, which help give the muscle its striated appearance.
Correct answer: Myosin and Actin- A. Coccygeal vertebrae
- B. Cervical vertebrae
- C. Sacral vertebrae
- D. Lumbar vertebrae
Explanation: In tetrapods, 'cervical vertebrae' (singular: vertebra) are the vertebrae of the neck, immediately below the skull.
Correct answer: Cervical vertebrae- A. Cardiac
- B. Smooth
- C. Skeletal
- D. Hard
Explanation: It is characteristic for the skeletal muscles to be linked to the bones and be neurogenic (controlled consciously).
Correct answer: Skeletal- A. Myofibrils; Sarcomeres
- B. Myofibrils; Thin filaments
- C. Myosin; Thin filaments
- D. Myosin; Sarcomeres
Explanation: Each skeletal muscle fibre is a single cylindrical muscle cell. An individual skeletal muscle may be made up of hundreds, or even…
Correct answer: Myofibrils; Sarcomeres- A. Z-line, H-zone, I-band
- B. I-band, Z-line, H-zone
- C. Z-line, I-band, H-zone
- D. H-zone, I-band, Z-line
Explanation: The mechanism of contraction is the binding of myosin to actin, forming cross-bridges that generate filament movement.
Correct answer: Z-line, I-band, H-zone- A. Option A
- B. Option B
- C. Option C
- D. Both A and B
- E. Both A and C
Explanation: Smooth muscles are present in the walls of internal organs such as the stomach, intestine, bladder, etc.
Correct answer: Option A- A. Cranium and facial bones
- B. Sternum, ribs, vertebrae
- C. Lumbar, Thoracic and pelvic bones
- D. Pectoral girdles, pelvic girdle, and appendages
Explanation: The axial skeleton includes the bones along the central axis of the body, including the cranium and facial bones, the sternum, ribs, and…
Correct answer: Pectoral girdles, pelvic girdle, and appendages- A. Exoskeleton
- B. Endoskeleton
- C. Axial skeleton
- D. Appendicular skeleton
Explanation: Option A: An exoskeleton is a hard, external skeleton that protects the body of some animals, such as insects and crabs.
Correct answer: Appendicular skeleton- A. Scapula
- B. Hip bone
- C. Sacrum
- D. Coccyx
Explanation: Option A: The scapula is the shoulder blade, which is part of the pectoral girdle.
Correct answer: Hip bone- A. Striated
- B. Are multinucleated
- C. Are involuntary
- D. Help in movement
Explanation: Skeletal muscles are striated, multinucleated, and voluntary. They help in movement by contracting and relaxing.
Correct answer: Are involuntary- A. The skull, pectoral girdle, and ribs
- B. The skull, ribs, and bones of arms and legs
- C. The pectoral and pelvic girdles
- D. The ribs, the skull, the sternum, and the vertebrate
Explanation: The axial skeleton involves the ribs, skull, the sternum and the vertebrate.
Correct answer: The ribs, the skull, the sternum, and the vertebrate- A. Breathing
- B. Pumping of blood
- C. Skeletal muscle movement
- D. Blinking of eyes
Explanation: Involuntary functions are those that occur without our conscious control.
Correct answer: Skeletal muscle movement- A. 15
- B. 25
- C. 35
- D. 45
Explanation: Sarcomere length is reduced by only about 35% (to a little under 2 mm) by a maximal shortening of the muscle.
Correct answer: 35- A. Kidney
- B. Liver
- C. Heart
- D. Stomach
Explanation: Cardiac Muscle is an involuntary striated muscle tissue found only in the heart and is responsible for the ability of the heart to pump…
Correct answer: Heart