Both play a key role in many non-muscle motility such as, cytokinesis, cell migration, amoeboid movement, and cytoplasmic streaming.
This type of movement is accompanied by protrusions in the cytosol called pseudopodia. The cells have an outter layer of thick actin-rich cytosol (gel) and an inner fluid layer of cytosol(sol).
The regulation of muscle contraction is dependent on _______,
Actins and myosins are present in almost all eukaryotic cells, including ________ cells.
Movement is coupled to
The model that explains muscle contraction.
These consist of -Muscle Fibres
-Myofibrils divided by sarcomeres.
-Thin filaments arranged around thick filaments in a hexagonal pattern.
Microtubules provide a set of tracks for the transport of organelles and vesicles. ___________ toward the minus end (at centre of cell), __________ directed toward the periphery.
the smallest functional unit of striated muscle tissue.
Down
Cilia and flagella share a common structure. This structure is called _________
Microtubules provide a set of tracks for the transport of organelles and vesicles. ______4____ toward the minus end (at centre of cell), ______5____ directed toward the periphery.
Occur in large numbers on the surface of ciliated cells, unicellular organisms use for locomotion and food collection, multicellular organisms use to move environment past cell.
Is important to cilia and flagella. Contains two heavy chains, two light intermediate chains, and various light chains. The heavy chains interact with MT. Requires help in order to bind to cargo.
This term describes two populations of microtubules.
These elements are important in movement of a cell (or whole organism) Movement of components within the cell Shortening of the cell itself (contractility) Movement of environment past or through the cell.
Variability of what region among myosins gives them the ability to bind to various molecules or cell structures.
This can be MT or MF based.
_________ is a directional movement in response to stimuli.
Move cells through fluid environment, differs from its relative in nature of beat.
These consist of a globular head, a coiled helical region and a light chain region. The head attaches to MTs and hydrolyzes ATP, the light-chain attaches to other proteins/organelles. Is processive, and efficient.
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