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A&P Lab
Chapter 3,4,6
Question | Answer |
---|---|
Nucleus: | control center of the cell; site of genes and genetic material, DNA, |
Plasma membrane: | separates the cell contents from the surrounding environment. |
Ribosome: | makes copy of DNA |
Rough endoplasmic: | provides an area for protein made on the ribosomes transported to other cell areas; external face synthesizes phospholipids |
Rough endoplasmic: | site of steroid and lipid synthesis, lipid metabolism and drug detox. (no protein synthesis related function.) |
Golgi apparatus: | Associated with small vesicles; packs protein or other substances that will be exported from the cell or incorporated into the plasma membrane; packaging lysosomeal enzymes |
Lysosome: | membrane sacs containing digestive enz; digest worn-out cell organelles and foreign substances; if rupture can destroy whole cell |
Mitochondria: | power house of the cell; ezn oxidizes food stuff produce ATP |
Chromatin: | structure in the nucleus that carry the hereditary factors/ genes; genetic material in a threadlike form |
Chromosome: | tightly coiled chromatins visible during cell division |
Cytosol: | liquid part of the cytoplasm |
Organelle: | small organs; structures of the cell |
Organelle: | small organs; structures of the cell |
Active transport: | net movement of a substance across a membrane against a concentration or electrical gradient; requires release and use of cellular energy |
Passive transport: | membrane transport process that does not require cellular energy (ATP); Diffusion which is driven by kinetic energy |
Diffusion: | the spreading of particles in a gas or solution with a movement towards uniform distribution of particles |
Osmosis: | the diffusion of a solvent through a membrane from a dilute solution into a more concentrated one |
Selective permeability: | a barrier allows some substances to pass through it while excluding other, nutrients in undesirables out |
Isotonic solution, | soulution has same concentration |
Hypotonic solution | concentration goes out |
Hypertonic solution | concentration goes in |