Review the key concepts, formulae, and examples before starting your quiz.
🔑Concepts
Amoeboid Movement: Exhibited by specialized cells like macrophages and leucocytes in blood. It is effected by pseudopodia formed by the streaming of protoplasm. Cytoskeletal elements like are also involved in this type of movement.
Ciliary Movement: Occurs in internal tubular organs lined by ciliated epithelium. Examples include the coordinated movement of in the to remove dust particles and the passage of ova through the .
Flagellar Movement: This type of movement helps in the swimming of , maintenance of water current in the canal system of sponges, and locomotion in protozoans like .
Muscular Movement: A significant characteristic of multicellular organisms. It utilizes the contractile property of muscles. Movement of limbs, jaws, and tongue require muscular movement, which involves the coordination of muscular, skeletal, and neural systems.
Relationship between Locomotion and Movement: All locomotions are movements, but all movements are not locomotions. For instance, the beating of in the is movement but not locomotion.
📐Formulae
💡Examples
Problem 1:
Which type of movement is responsible for the removal of dust particles from the and how is it achieved?
Solution:
Ciliary movement.
Explanation:
The is lined with ciliated epithelium. The coordinated, rhythmic beating of these moves the mucus-trapped dust particles upwards toward the pharynx, away from the lungs.
Problem 2:
Identify the movement exhibited by and the cellular components involved.
Solution:
Amoeboid movement involving .
Explanation:
move through tissues to reach sites of infection by forming (false feet). This protoplasmic streaming is assisted by elements known as .