1) The dark, circular Nucleolus is where ribosome assembly begins.
2) The thread-like chromosomes are spread throughout the nucleus in the form of chromatin.
3) The membrane of the nucleus is dotted with nuclear pores to allow material in and out.
Like an organ in the body, an organelle is a subcellular structure that performs one or more particular functions for the cell. Some of the more important cell organelles are the nucleus, which contains genetic material, the mitochondria, which provide chemical energy, and the ribosomes, which assemble proteins.
As a result, the lysosome breaks down large molecules to create small molecules, whereas the mitochondrion breaks down large molecules to produce energy. Since the mitochondrion depends on all of its pathways, proteins, and enzymes to convert one chemical to another, they must be divided since the lysosome needs an acidic pH.
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