Tag: introduction to locomotion

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Multiple choice zoology skeleton and joints introduction to movement introduction to locomotion movement

The amoeboid movements result from_____________.

  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
Reveal answer Fill a bubble to check yourself
A Correct answer
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. 

Multiple choice zoology skeleton and joints introduction to movement introduction to locomotion movement

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

  1. attachment to substratum

  2. contraction theory

  3. continuous viscosity changes

  4. theory of rolling movement
Reveal answer Fill a bubble to check yourself
A Correct answer
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'.

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

Select the correct option. 

  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
Reveal answer Fill a bubble to check yourself
D Correct answer
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'.

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

Which of the following statements is not true?

  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.
Reveal answer Fill a bubble to check yourself
C Correct answer
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.

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

Streaming of protoplasm in amoeba is an example of

  1. Locomotion

  2. Movement

  3. Both A and B

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  •  Locomotion is when the movement of a part of the body leads to change in the position and location of the organism. 
  •  In multicellular animals, these movements include walking, running, jumping, crawling, climbing, swimming, flying, galloping, slithering, and so on. 
  • Cytoplasmic streaming, also called protoplasmic streaming, the movement of the fluid substance (cytoplasm) within a plant or animal cell.  If one of the proteins remains fixed on a substrate, such as a microfilament or a microtubule, the motor proteins can move organelles and other molecules through the cytoplasm. 
  •  In some unicellular organisms, such as amoeba, it provides the mechanism for cell locomotion. Hence, Streaming of protoplasm in amoeba is an example of Movement.
    • So, the correct answer is 'Movement'.
Multiple choice biology locomotion and movements introduction to locomotion skeleton and joints movement in animals

The cells of human body exhibits type of movement is

  1. Amoeboid

  2. Ciliary

  3. Muscular

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Movement is a characteristic feature of living organisms. The different types of movement exhibited by cells of the human body are: 

  • Amoeboid movement: Leucocytes present in the blood show amoeboid movement. 
  • Ciliary movement: Reproductive cells such as sperms and ova show ciliary movement.
  •  Muscular movements:  Muscle tissue found inside of the heart, digestive organs, and blood vessels serve to move substances throughout the body. Hence, The cells of the human body exhibits type of movement are Amoeboid, Ciliary and Muscular.
So, the correct answer is 'All of the above'.

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

Which of the following is the form of locomotion?

  1. Swimming

  2. Opening of stomata

  3. Blooming of flowers

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Locomotion can be seen in  different media. 
Animals move through, or on, four types of environment: 

  • Aquatic (in or on water), 
  • terrestrial (on the ground or other surfaces, including arboreal, or tree-dwelling),
  •  fossorial (underground), and 
  • aerial (in the air). Hence, Swimming is the form of locomotion.
So, the correct answer is 'Swimming'.