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The largest known virus is the Mimivirus with a length of 800 nanometers.
human cell
In most cases the nucleus is the organelle that takes up the most volume in an animal cell. In the nuclei is where DNA of an animal can be found. This makes the nucleus the most important organelle as well.
When size of cell increases ,its surface to volume ratio decreases , control of cell activities become difficult , contact area with surrounding decreases .
neurons aka nerve cells
Skin
The largest known virus is the Mimivirus with a length of 800 nanometers.
The anterior horn cell (nerve cell in the cerebellum) is the largest cell in diameter (135 μm). The longest cell also belongs to the nervous cells (such as the pseudounipolar neurons).
The egg is the largest human cell.
Depends on how you define "largest." The longest cell in the human body is actually a nerve cell in the leg (because it stretches essentially the entire human body - from brain to foot). But in terms of microns (how cells are measured), the anterior horn cell of the spine is the largest in circumfrance at 135 micrometers.
human cell
the ovum
The second largest cell in the human body is found in the female reproductive system. It is the female egg cell.
The largest cell in the human body is the ovum cell. The ovum cell is approximately one millimeter in length and is the only cell that can be seen without a microscope.
The nucleus
yes
In most cases the nucleus is the organelle that takes up the most volume in an animal cell. In the nuclei is where DNA of an animal can be found. This makes the nucleus the most important organelle as well.