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. No blood circulation
- B. mostly contain type li collagen
- C. They can be shaped
- D. No inorganic salts
Explanation: Cartilage does contain inorganic salts, particularly calcium salts, which contribute to its hardness and rigidity.
Correct answer: No inorganic salts- A. Maxilla
- B. Lacrimal
- C. Mandible
- D. Palatine
Explanation: The mandible is the correct answer. It is the only unpaired facial bone and forms the lower jaw
Correct answer: Mandible- A. Calcium carbonate
- B. Calcium phosphate
- C. Potassium hydroxide
- D. Calcium chloride
Explanation: The major inorganic component of vertebrate bone is hydroxyapatite, which is a crystalline structure made primarily of calcium phosphate.
Correct answer: Calcium phosphate- A. Long bones
- B. Appendicular skeleton
- C. Trabeculae
- D. Axial Skeleton
Explanation: The bones in the long axis of the body, which include the skull, vertebral column, and ribcage, collectively make up the axial skeleton.
Correct answer: Axial Skeleton- A. Sternum
- B. Clavicle
- C. Pelvic bone
- D. Hyoid bone
Explanation: The pectoral girdle, also known as the shoulder girdle, is the set of bones that connect the upper limbs (arms) to the axial skeleton.
Correct answer: Clavicle- A. Myocardium
- B. Cartilage
- C. Bone
- D. Periosteum
Explanation: Option B is correct. The connective tissue that consists of cells known as chondrocytes is cartilage.
Correct answer: Cartilage- A. Calcified
- B. Elastic
- C. Fibrous
- D. Hyaline
Explanation: At the beginning of the menstrual phase, the levels of ovarian hormones, specifically estrogen and progesterone, are at their lowest.
Correct answer: Hyaline- A. Tendons
- B. Smooth muscles
- C. Ligaments
- D. Nerves
Explanation: Bones are held together at joints by ligaments. Ligaments are fibrous connective tissues that connect bones to other bones, providing…
Correct answer: Ligaments- A. Fibrous joint
- B. Cartilaginous joint /sliding joint
- C. Hinge joint
- D. Ball and socket joint
Explanation: Option B is correct. The joint between wrist bones is a cartilaginous joint.
Correct answer: Cartilaginous joint /sliding joint- A. Cartilaginous joints
- B. Synovial joint
- C. Hinge joint
- D. Ball and socket joint
Explanation: Hip and shoulder joints are examples of ball and socket joints, while ball and socket joints and hinge joints are examples of synovial…
Correct answer: Ball and socket joint- A. Skeletal muscles
- B. Smooth muscles
- C. Cardiac muscles
- D. All of the above
Explanation: Smooth muscles are uniquely adapted to sustain long-term contractions with minimal energy consumption.
Correct answer: Smooth muscles- A. Released from the sarcoplasmic reticulum into the sarcoplasm
- B. Transported back from the sarcoplasm into the sarcoplasmic reticulum
- C. Further released from the sarcoplasmic reticulum into the sarcoplasm
- D. Remain constant without any movement
Explanation: During muscle relaxation, calcium ions are actively transported back from the sarcoplasm into the sarcoplasmic reticulum, which decreases…
Correct answer: Transported back from the sarcoplasm into the sarcoplasmic reticulum- A. I-Line
- B. A-Line
- C. Z-Line
- D. M-Line
Explanation: Option C is correct. The sarcomere is the region of a myofibril between two successive Z-lines.
Correct answer: Z-Line- A. Sodium
- B. Calcium
- C. Magnesium
- D. Potassium
Explanation: Option B is correct. According to the sliding filament hypothesis, the release of calcium ions from the sarcoplasmic reticulum causes the…
Correct answer: Calcium- A. Adenosine triphosphate, Lactic acid
- B. Adenosine triphosphate, Ionic imbalance
- C. Glucose, Lactic acid
- D. Glucose, Ionic imbalance
Explanation: Muscle fatigue occurs when muscles are unable to generate force or contract due to a combination of factors. The two main factors are: 1.
Correct answer: Adenosine triphosphate, Lactic acid- A. Striped
- B. Unstriped
- C. Cardiac
- D. Triceps
Explanation: The correct answer is 'Cardiac' because cardiac muscles are uniquely adapted to contract continuously throughout a person's life without…
Correct answer: Cardiac- A. Tendon
- B. Ligaments
- C. Elastic fibers
- D. Areolar
Explanation: The correct answer is 'Tendon'. Tendons are strong bands of connective tissue that connect muscles, like the bicep, to bones such as the…
Correct answer: Tendon- A. Bone
- B. Connective tissue
- C. Muscles
- D. Cartilage
Explanation: Myoglobin is a protein found in muscle fibers, responsible for storing oxygen and facilitating its availability during muscle contraction.
Correct answer: Muscles