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Most prominent or organelle in a eukaryotic cell, enclosed within two concentric membranes that form the nuclear envelope.
It contains molecules of DNA, extremely long polymers that encode the genetic information of the organism
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| Giant DNA molecules that become visible under a light microscope when they become more compact in preparation to divide. |
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| Present in essentially all eukaryotic cells, they are among the most conspicuous organelles in the cytoplasm. Each mitochondria is enclosed into two separate membranes. They contain their own DNA and reproduce by dividing in two. |
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Large green organelles that are found only in the cells of plants and algae, not in cells of animals or fungi. They contain large internal sacks of membranes containing the green pigment Chlorophyll
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An irregular maze of interconnected spaces enclosed by a membrane. This is the site where most cell membrane components, as well as materials destined for export from the cell, are made.
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| The golgi is involved in the synthesis and packaging of molecules destined to be secreted from the cell. Also responsible for the routing of newly synthesized proteins to the correct cellular compartment. |
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| Small, irregularly shaped organelles in which intracellular digestion occurs, releasing nutrients from food particles and breaking down unwanted molecules for recycling or excretion. |
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| Small, membrane enclosed vesicles that provide a contained environment for reaction in which hydrogen peroxide is generated and degraded. |
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| The part of the cytoplasm that is not partitioned off within intracellular membranes. Usually the largest single compartment |
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| The molecular machines that make the protein molecules, are visible with the electron microscope as small particles in the cytosol. |
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| Filaments that are anchored at one end of the plasma membrane or irradiate out from a central site adjacent to the nucleus |
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| Thinnest filaments which are present in all eukaryotic cells but occur in especially large numbers inside muscle cells. |
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| Thickest filaments because they have the form of minute hollow tubes, aid in pulling duplicated chromosomes in opposite directions |
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| Serve to strengthen the cell mechanically |
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| Promote intracellular chemical reactions by providing intricate molecular surfaces that can cradle or exclude specific molecules |
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Molecule made from a long chain of amino acids linked to its neighbor through a covalent peptide bond.
(referred to as polypeptides or polypeptide chains) |
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