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Any organism having as its fundamental structural unit a cell type that contains specialized organelles in the cytoplasm, a membrane-bound nucleus enclosing genetic material organized into chromosomes, and an elaborate syst of division by mytosis or meiosis, characteristic of all life forms except bacteria, blue-green algae, and other primitive organisms.
5 Organelles contained in microbial eukaryotic cells
1. Nuclei: DNA containing-defining characteristic of eukaryote
2. Mitochondria: Energy production
3. Endoplasmic reticulum: Translation of proteins
4. Golgi apparatus: package materials for secretion
5. vacuoles: food or other storage
Each organelle is surrounded by a membrane that defines its inside from its outside
Do not have organelles
Defining characteristics of eukaryotic cell:
- employ active transport across the cytoplasmic membrane
- have an additional type of transport called "bulk transport"
a cell wants to engulf a large molecule (endocytosis) or secrete whole antibody molecules (exocytosis), it can do so by the creation of a vesicle.
-cell receptor binds to a ligand. The cell membrane then invaginates into the cell and pinches off to form vesicle
-opposite process of endocytosis
- digestive organelle
Distinguish between flagella and cilia:
- similar to each other in cross-section, but flagella are much longer than cilia
Defining characteristic of eukaryotic cell:
- has a nuclei
- a long lashlike appendage serving as an organ of locomotion in protozoa
- hairlike orgonelles, identical to flagella, that line the surfaces in certain cells and beat in rhythm waves, providing locomotion and moving liquids along internal epithelial tissue in animals.
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