Tag: skeleton and joints

Questions Related to skeleton and joints

Which of the following helps in the movement of biceps and triceps?

zoology skeleton and joints introduction to movement introduction to locomotion movement

  1. Muscles

  2. Bones

  3. Cartilage

  4. All of the above

Show answer
Correct Option: A
Explanation:
  • Flexor muscle decreases the angle between the bones that converge at the joint.
  • Extensor muscle increases the angle between the bones that converge at the joint.
  • The biceps is a large muscle that lies on the front of the upper arm between the shoulder and the elbow and The triceps is a large muscle on the back of the upper limb.
  • The biceps is the flexor, and the triceps is the extensor of the elbow joint.
  • Hence muscles help in the movement of biceps and triceps.
  • So, the correct answer is'Muscles'.

Which of the following parts of the body moves by using muscular force?

zoology skeleton and joints introduction to movement introduction to locomotion movement

  1. Biceps

  2. Legs

  3. Jaws

  4. All of the above

Show answer
Correct Option: D
Explanation:

A muscle is a tissue composed of cells or fibers, the contraction of which produces movement in the body. Muscular force is needed to bring movement, which needs energy for the contraction and relaxation of the same. Muscles are attached to bones to bring about the required movement.

The biceps are the muscles present in the upper arms, which require muscular force for its movement.
The legs are consist of bones attached to muscles which require muscular force for movement.
Jaws i.e. the mandibular region also requires muscular force to cause movement, because the muscles attached need force for resulting in movement.
Thus, the correct answer is 'All of the above'.

Innominate or hip bone is formed by the fusion of how
many bones

zoology skeleton and joints introduction to movement introduction to locomotion movement

  1. 2

  2. 3

  3. 4

  4. 5

Show answer
Correct Option: B
Explanation:

Hip bone is formed by the fusion of three bones; ilium on upper side, pubis on inner side and ischium below the pubis.

The ciliary body is located.

zoology skeleton and joints introduction to movement introduction to locomotion movement

  1. Near the ciliary muscles

  2. Near the blind spot

  3. Just behind the cornea

  4. At the junction of iris and choroid

Show answer
Correct Option: D

The amoeboid movements result from_____________.

zoology skeleton and joints introduction to movement introduction to locomotion movement

  1. Interaction among actin, myosin, and ATP

  2. Coordinated beats of cilia

  3. Whip-like action of flagella

  4. Action by the mitotic spindle, similar to what happens during mitosis and meiosis

Show answer
Correct Option: A
Explanation:

Interaction among actin, myosin and ATP

The amoeba uses two mechanically distinct mechanisms to push itself forward a filopodia - lamellipodia mechanism that depends on action polymerisation and a bleb mechanism in which a local region of membrane where the cortical - cytoplasmic pressure generated by myosin. 

In mammals each half of Pedoral girdle consists of

zoology skeleton and joints introduction to movement introduction to locomotion movement

  1. Supra scapula

  2. Scapula

  3. Coracoid

  4. All the above

Show answer
Correct Option: D
Explanation:

The ventral part of each half of pectoral girdle is comprise three skeletal pieces scapula, supra scapula, and coracles.

In Amoeba, the conversion of plasma gel into plasma sol at the trailing end and the conversion of plasma sol into plasma gel at the advancing end explains

zoology skeleton and joints introduction to movement introduction to locomotion movement

  1. attachment to substratum

  2. contraction theory

  3. continuous viscosity changes

  4. theory of rolling movement

Show answer
Correct Option: A
Explanation:

Sol-gel theory explains that it is the method for producing solid material from small molecules. The process involves the conversion of monomers into a colloidal solution (sol) that acts as the precursors for an integrated network (or get) or either discrete particles or network polymers.

So, the correct option is 'attachment to substratum'.

Select the correct option. 

biology skeleton and movements introduction to locomotion skeleton and joints movement in animals

  1. Locomotion is shown by multi cellular organisms

  2. Paramecium uses tentacles for locomotion

  3. Hydra uses cilia for locomotion

  4. Kangroo cannot walk backward

Show answer
Correct Option: D
Explanation:

  • Locomotion is a feature exhibited by both unicellular and multicellular organisms. 
  • Paramecium uses cilia for its locomotion and Hydra uses somersaulting or gliding movement for its locomotion. 
  • Kangaroos can't walk backward. An unusual feature of the kangaroo is that it cannot walk backwards. This is because of its unusually shaped hind legs and bulky tail which can grow up to four feet long.

So the correct option is 'Kangaroo cannot walk backward'.

What does the word pseuopod mean ?

biology skeleton and joints introduction to locomotion movement in animals skeleton and movements

  1. Hidden arm

  2. False foot

  3. Soft bodied

  4. Multi limbed

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Correct Option: A

Which of the following statements is not true?

biology skeleton and joints introduction to locomotion movement in animals skeleton and movements

  1. The cartilage is not as hard as bones.

  2. A snake moves by making loops.

  3. All animals show exactly similar movements.

  4. Snails move with the help of their muscular feet.

Show answer
Correct Option: C
Explanation:

All animals exhibit different patterns of movements. The movements differ with differences in the types of joints present in the animals. Example: In birds, the forelimbs are modified to result in wings, which leads to flying movement. In case of kangaroos, the hind limbs are modified such that they contain flexible muscles resulting in their jumping movement. In humans, the legs are modified so that they walk with two limbs only, as opposed by other vertebral mammals like dogs, cats etc. which have 4 limbs.

Hence the statement, 'all animals show exactly same movements' is false.