The spindle is a structure made of microtubules, strong fibers that are part of the cell’s “skeleton.” Its job is to organize the chromosomes and move them around during mitosis. The spindle grows between the centrosomes as they move apart.
Which animal cell structures help to move the chromosomes during cell division?
Centrioles help to arrange the microtubules that move chromosomes during cell division to ensure each daughter cell receives the appropriate number of chromosomes. Centrioles are also important for the formation of cell structures known as cilia and flagella.
Which organelles are responsible for arranging and moving chromosomes in cell division?
Besides the intracellular movement of organelles, the cytoskeleton is responsible for chromosome movement during cell division and for cytokinesis. This intricate network of protein filaments, which runs throughout cytoplasm, makes up a dynamic, continuously reorganizing framework, not a static scaffolding.
What structures are responsible for the movement of chromosomes?
With the separation of the sister chromatids/homologues at anaphase, the equilibrium is broken, the chromosomes move towards the poles at the rate of about 1 pm/min. Spindle fibers extend from centrioles to kinetochores and are responsible for moving chromosomes around during mitosis.
What is the main function of ribosome?
Ribosomes have two main functions — decoding the message and the formation of peptide bonds. These two activities reside in two large ribonucleoprotein particles (RNPs) of unequal size, the ribosomal subunits. Each subunit is made of one or more ribosomal RNAs (rRNAs) and many ribosomal proteins (r-proteins).
Which structure is responsible for chromosome movement during cell division quizlet?
Microtubles are responsible for the movement of chromosomes during cell division.
What are chromosomes How are they different between prokaryotes and eukaryotes?
In prokaryotes, the circular chromosome is contained in the cytoplasm in an area called the nucleoid. In contrast, in eukaryotes, all of the cell’s chromosomes are stored inside a structure called the nucleus. Each eukaryotic chromosome is composed of DNA coiled and condensed around nuclear proteins called histones.