FRANCIS LEROY, BIOCOSMOS / SCIENCE PHOTO LIBRARY FRANCIS LEROY, BIOCOSMOS / SCIENCE PHOTO LIBRARY
Trypanosome protozoan. Artwork of a section through a Trypanosoma congolense protozoan. This parasite is a cause of the disease nagana in cattle and other livestock in Africa. Seen within the cell are the nucleus, which contains the animal's genetic information and the nucleolus. A mitochondrion provides the cell with energy. Endoplasmic reticulum is the site of lipid and protein synthesis in the cell. The Golgi complex packages proteins. A flagella (orange) runs the length of the cell and is used for locomotion.
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