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15 Cards in this Set
- Front
- Back
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Cell membrane |
Boundary between extracellular and intracellular compartments; controls passage of substances into and out of cell; maintains membrane receptors for attachment of ligands |
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Celia |
Many fine hairlike structures on luminal surface of cells that beat rhythmically in unison |
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Celia (function) |
Fast phase of rhythmic beat propels mucus and fluid across luminal surface of cell in one direction |
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Flagellum |
Single long hairlike structure found in sperm, cells and some pathogens |
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Function of Flagellum |
Thrashing movement of flagellum propels cell forward |
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Function of the cell membrane |
Boundary between extracellular and intracellular compartments; controls passage of substances into and out of cell; maintains membrane receptors for attachment of ligands |
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Nucleus |
Wide variety of shapes, sizes and number of nuclei within each cell type; DNA, rRNA, and ribosomal subunits |
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function of nucleus |
Site of transcription, (transfer of genetic code from DNA to mMRNA) and production of ribosomal units |
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Nuclear envelope |
Double- layered membrane w/countless nuclear pore complexes; outer membrane is continuous with ER |
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Function of nuclear envelope |
Separates nucleus from surrounding custodial; restricts movement of molecules into and out of nucleus |
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Chromatin |
Located in nucleoplasm. Composed of nucleosomes (DNA wrapped around 8 Justine proteins) connected by sections of linker DNA; normally arranged in loose strands |
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Function of chromatin |
DNA portion contains sequence code for making proteins and enzymes that control molecular interactions; supercoils to form x-shaped chromosomes during cell division |
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Nucleolus |
Dense cluster of ribosomal RNA and protein( nucleoli are non membrane bound |
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Nucleolus |
Dense cluster of ribosomal RNA and protein( nucleoli are non membrane bound |
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Function of nucleolus |
Location of synthesis of ribosomal subunits |
