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 (black oval), which contains the animal's genetic information and the nucleolus (green). A mitochondrion (yellow) provides the cell with energy. Endoplasmic reticulum (pink) is the site of lipid and protein synthesis in the cell. The Golgi complex (black with red outline) packages proteins. A flagella (orange) runs the length of the cell and is used for locomotion.
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