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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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Human SkeletonMusclesMuscle ContractionJointsArthritis
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738 questions · page 30 of 37

581. The contractile protein of a muscle is?

  • A. Actin
  • B. Myosin
  • C. Tubulin
  • D. Tropomyosin

Explanation: Myosin interacts with actin filaments for contraction and has ATPase activity.

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Correct answer: Myosin

582. The functional unit of the contractile system in striated muscle is?

  • A. Sarcomere
  • B. Z line
  • C. Cross bridges
  • D. Myofibril

Explanation: The sarcomere is the functional unit of striated muscle fibers, defined as the segment between two Z lines.

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Correct answer: Sarcomere

583. Which joint type is found between skull bones ?

  • A. Synovial joint
  • B. Cartilaginous joint
  • C. Fibrous joint
  • D. Pivot joint

Explanation: The skull bones are connected by immovable fibrous joints (sutures).

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Correct answer: Fibrous joint

584. The sarcolemma of muscle fibers folds inwards and forms a system of tubes which run through the sarcoplasm called:

  • A. Myofilaments
  • B. Z-lines
  • C. Sarcoplasmic reticulum
  • D. Transverse tubules

Explanation: Transverse tubules, also known as T-tubules, are formed by the invagination of the sarcolemma into the sarcoplasm.

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Correct answer: Transverse tubules

585. The microtubules in the cytoskeleton are made up of the protein:

  • A. Tropomyosin
  • B. Myosin
  • C. Tubulin
  • D. Actin

Explanation: Microtubules are cylindrical structures in the cytoskeleton made of tubulin protein, which assembles into long, hollow tubes.

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Correct answer: Tubulin

586. Which of the following joint is also known as an ellipsoidal joint?

  • A. Saddle joint
  • B. Condyloid joint
  • C. Ball and socket joint
  • D. None of these

Explanation: An ellipsoidal joint is also known as a condyloid joint. This type of joint is a synovial joint that allows for movement in two planes…

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Correct answer: Condyloid joint

587. Joints found at the vertebrae are:

  • A. Gliding joints
  • B. Sliding joints
  • C. Partially moveable joints
  • D. Fixed joints
  • E. Pivot joints

Explanation: Gliding joints are present between vertebrates.

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Correct answer: Gliding joints

588. The first vertebrae of the cervical region of the vertebral column is known as:

  • A. Atlas
  • B. Sacral
  • C. Thoracic
  • D. Axis

Explanation: The first vertebra of the cervical region is known as the atlas. It supports the skull and allows for nodding movements of the head.

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Correct answer: Atlas

589. Find the Error.One of the things(A) that really makes(B) me angry is (C)people who don't answer(D) emails.

  • A. One of the things
  • B. That really make
  • C. Is
  • D. Don't answer

Explanation: The error lies in the phrase 'that really makes.' Here, 'that' refers to 'things,' which is plural, so the verb should be 'make' instead…

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Correct answer: That really make

590. Spot the error.At the car park entrance turn the right along the road to return to the junction by the bridge over the river.

  • A. The car park
  • B. The right
  • C. The junction
  • D. The river

Explanation: The correct answer is B. The sentence should read: "At the car park entrance, turn right along the road to return to the junction by the…

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Correct answer: The right

591. Spot the error. I cannot say anything about me going to Karachi as the flights are getting delayed.

  • A. cannot
  • B. me
  • C. as
  • D. delayed

Explanation: This is the error. In formal English, when talking about oneself about actions (like going somewhere), "my" is the correct possessive…

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Correct answer: me

592. Find the error of punctuation"These were good days,Jess! That's why I remember this mountain."

  • A. Days
  • B. Jess
  • C. That's
  • D. Mountain

Explanation: The correct answer is B) Jess. The error in punctuation lies in the lack of spacing after the comma following 'days,' which should be…

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Correct answer: Jess

593. Select the most suitable synonym for the given word:BASHFUL

  • A. Timid
  • B. Susceptible
  • C. Bold
  • D. Invulnerable

Explanation: Bashful means to be shy and unwilling to attract attention, similarly timid also means to be shy.

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Correct answer: Timid

594. Directions: In the following question, a number sequence is given with one term missing. Choose the correct term that will continue the same pattern and replace the question mark in the given sequence.71,25,83,37,95,49,?

  • A. A: 61
  • B. B: 107
  • C. C: 59
  • D. D: 105

Explanation: The given sequence is: 71, 25, 83, 37, 95, 49, ?Separate the sequence into two alternating patterns:1st, 3rd, 5th terms: 71, 83, 952nd…

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Correct answer: B: 107

595. In this question, a statement is given followed by two courses of action numbered I and II. It is required to grasp the statement, analyze the problem or policy it mentions and then decide which of the courses of action logically follow / most appropriate.Statement:The teenager was arrested by the police for taking drugs.Courses of action:I) The teenager should be meted with corporal punishment by the police.II) The teenager should be sent to a drug rehabilitation centre.

  • A. If only I follows
  • B. If only II follows
  • C. If either I or II follows
  • D. If neither I nor II follows
  • E. If both I and II follow

Explanation: The correct answer is Option B: If only II follows. Sending the teenager to a drug rehabilitation center (Course of Action II) is the most…

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Correct answer: If only II follows

596. Skull, vertebral column, ribs, and sternum form:

  • 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.

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Correct answer: Axial skeleton

597. Which of the following is not a unique feature of a synovial joint?

  • A. Articular capsule
  • B. Articular cartilage
  • C. Synovial fluid
  • D. Fibrocartilage

Explanation: Fibrocartilage is the tough, very strong tissue found predominantly in the intervertebral disks and at the insertions of ligaments and…

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Correct answer: Fibrocartilage

598. Which of the following are parts of the functional classification of joints?

  • A. Ellipsoidal
  • B. Gomphosis
  • C. Syndesmosis
  • D. None of these options are correct

Explanation: Classification of joints is given below:

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Correct answer: None of these options are correct

599. Which of the following occurs during muscular contraction?

  • A. Actin slides past myosin
  • B. ATP supplies energy
  • C. Calcium ions are involved
  • D. All of these

Explanation: When muscles need to contract, calcium ions bind with the troponin molecule and cause them to move slightly. ATP is hydrolysed.

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Correct answer: All of these

600. The function of tropomyosin is to prevent actin and myosin from - when the muscle is at rest.

  • A. Interacting
  • B. Separation
  • C. Both A an B
  • D. None of these

Explanation: Tropomyosin blocks myosin binding sites on actin molecules, preventing cross-bridge formation, which prevents contraction in a muscle…

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Correct answer: Interacting
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