BI110 Study Guide - Final Guide: Amoeboid Movement, Intermediate Filament, Depolymerization
Document Summary
Cytoskeleton is a complex network of proteins that provides the cell with structural support, provides the cell with cellular locomotion, and anchors intercellular components in place. Rudolph peters theorized that a intercellular scaffolding organized organelles and facilitated cellular movement. Prokaryotic cells also have a cytoskeleton, the component fibres differ. Architecture of the fibrous network provides strength to the cell. Based on 3 main components: microtubules. Responsible for amoeboid movement (finger-like projections called psedopia move the cell forward) Functions in the motility (contraction of muscles that mix and propel contents) of the cell and the components inside the cell. Pseudopodia finger like projections that help amoebic movement, helps cell move . In plant cells, cytoskeleton allows cytoplasmic streaming, ensuring delivery of nutrients to the entire cell. Forms phragmoplast, a structure that serves as a scaffold for the synthesis of a new cell wall. Are polymers of the globular protein actin.
