XI Chap 20 Locomotion and Movement Flashcards
Movement is one of the significant features of ______________
living beings
Streaming of protoplasm in unicellular organisms like ______________ is a simple form of movement
Amoeba
Movement of cilia, flagella and ______________ are shown by many organisms
tentacles
Voluntary movements that result in a change of place or location are called ______________
locomotion
Locomotory structures are distinct from those affecting other types of movements. T or F?
False, need not be, they can be the same
In Paramoecium, cilia helps in movement of food through ______________ and in ______________ as well
cytopharynx, locomotion
Hydra can use its tentacles to capture prey and for locomotion. T or F?
True
All locomotions are movements but not all movements are locomotion. T or F?
True
Methods of locomotion performed by animals vary ______________ and ______________
habitats, demand of situation
Locomotion is generally for:
search of food, shelter, mate, suitable breeding grounds, favourable climatic conditions, escape from enemies/predators
Cells of human body exhibit how many types of movement? What are they?
- Amoeboid
- Ciliary
- Muscular
Some specialised cells in our body like ______________ and ______________ in ______________ exhibit amoeboid movement
macrophages, leucocytes, blood
Amoeboid movement is effected by ______________ formed by the streaming of ______________
pseudopodia, protoplasm
Cytoskeletal elements like ___________ are also involved in amoeboid movements
microfilaments
Ciliary movement occurs in most of our ___________ organs which are lined by ___________
internal tubular, ciliated epithelium
Coordinated movements of cili in the trachea help us in removing ___________ and some ___________ inhaled with atmospheric air
dust particles, foreign substances
Passage of ___________ through the female reproductive tract is also facilitated by ciliary movement
ova
Movement of our limbs, jaws, tongue, etc. require ___________ movement.
muscular
The ___________ property of muscles are effectively used for locomotion and other movements by humans and a majority of multicellular organisms.
contractile
Locomotion requires a perfect coordinated activity of ___________, ___________ and ___________ systems
muscular, skeletal, neural
___________ movement helps in swimming of spermatozoa
Flagellar
___________ movement helps in maintenance of water current in canal system of sponges
Flagellar
___________ movement helps in locomotion of Protozoans like Euglena
Flagellar
Muscle is a specialised tissue of ___________ origin
mesodermal