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21 Cards in this Set
- Front
- Back
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Centrioles |
Organize spindle microtubules to move chromosomes during cell division |
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Chromatin |
"Colored stuff" found in nucleas; consists of uncoiled chromosomes |
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Ribosomes |
Free:float in cytoplasm Fixed: attached to ER Both involved in producing protien |
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Mitochondria |
Powerhouse Produce ATP Cellular respiration |
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Nucleus |
Chromatin Contains chromosomes Contains genetic material DNA |
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Endoplasmic reticulum |
Network of hollow tubes. Site of lipid synthesis and detoxification of drugs n alcohol(smooth ER) (Rough ER) synthesizes protiens destined for the cell membrane, lysosomes,or secretion. |
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Golgi apparatus |
Modifies protien Synthesis and packaging of secretions Packaging of enzymes,modifies protien,and sorts organells for delivery |
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Lysosome |
Contain cellular digestive enzymes. Breakdown of intracellular debris Recycles damaged organells Sometimes rupture,kills entire cell |
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Peroxisomes |
Abundant in liver Contain catalase to break down hydrogen peroxide Breakdown lipids and toxic substances by converting them to hydrogen peroxide and then water and oxygen |
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Cytoplasm |
Suspends cellular organelles Contains enzymes that mediate cystolic reactions |
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Cytoskeleton |
Provides main structural support for cell Composed of microtubules,intermediate fillaments, and microfillaments |
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Plasma membrane/plasmalemma |
Double phospholipid bilayer Proteins embedded Hydrophylic and hydrophobic Protection Sensitivity Support Control of entrance/exit of materials Distribute materials by diffusion
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Cillia |
Movement of materials over cell surface Hair like and tail projections |
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Microvilia |
Increase surface area to facillitate absorption of extracellular materials |
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Nucleolus |
Synthesizes RNA Assembles ribosomes in nucleus |
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Diffusion |
Movement of molecules from area of high concentration to low concentration Permeability |
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Osmosis |
Movement of water from high concentration to low Only water |
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Facilitated diffusion |
Solutes passively transported by carrier ptotien Glucose and amino acids are involved |
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Active transport |
Solutes actively transported by carrier protein regardless of concentration ATP Sodium, potassium, calcium,magnesium |
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Endocytosis |
Pinocytosis-vesicles bring small molecules into cell Phagocytosis-bring solid particles |
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Exocytosis |
Release of fluids ,solids from cells when intracellular vesicles fuse |
