What is the structure that acts as a scaffolding for chromosomal attachment and movement?
spindle fibers and microtubules that attach to the kinetichores during miosis
Mitotic Spindle which forms between the centrioles, and the asters ("stars"), which radiate outward from the ends of the spindle and anchor it to the plasma membrane. The spindle acts as a scaffolding for the attachment and movement of the chromosomes during later mitotic stages. Meanwhile, the nuclear envelope and the nucleus break down and disappear.
The cytoskeleton is a cellular "scaffolding" or "skeleton" contained within the cytoplasm. The cytoskeleton is present in all cells; it was once thought this structure was unique to eukaryotes, but recent research has identified the prokaryotic cytoskeleton. It is a dynamic structure that maintains cell shape, and also has been known to protect the cell, enables cellular motion (using structures such as flagella, cilia and lamellipodia), and plays important roles in both intracellular transport (the…
Which structure is responsible for the restriction of movement of large complex substances into the bloodstream of your body?
In cells (Bacterial), the structure present for movement is Flagella. In human cells, no such structure is present, then also movement occurs. There is a molecular mechanism attached with it. The presence of calcium ions (intracellular) which on excitation binds with the specific protein and initiate the chain of reaction which leads to contraction. It produces movement. Ca-Calmodulin complex-Initiation of Myosin light chain kinase-Phosphorylation-Contraction.