Cell Organelle Review You Need…

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Cell Organelle Review You need…. Table cleared White Board Marker Eraser Mouth Closed! Word Bank • Vacuole • Cell Membrane • Cell Wall • Chloroplast • Mitochondrion • Cytoplasm • Nucleus Click to watch cell organelle video • http://www.youtube.com/watch?v=- zafJKbMPA8&feature=bf_prev&list=PLn6MYtn BEzPt5jgU8uP8lYmvuLg0JyPwn Description: surrounds the cytoplasm Organelle: Cell Membrane Structure or Function Control center Control center Nucleus Function Larger in plant cells Larger in plant cells Vacuole Structure Removes waste Removes waste Cell Membrane or Lysosome Function Chromosome are found here Chromosome are found here Nucleus Structure Converts glucose (food) into energy Converts glucose (food) into energy Mitochondrion Function Gel-like liquid that fills a cell Gel-like liquid that fills a cell Cytoplasm Structure Allows things to enter and exit the cell Allows things to enter and exit the cell Cell Membrane (Plasma Membrane) Function Provides support Provides support Cell Wall Function Storage site for water, nutrients and waste Storage site for water, nutrients and waste Vacuole Function Contains stacks of discs that house chlorophyll Contains stacks of discs that house chlorophyll Chloroplast Structure Double membrane with inner folds Double membrane with inner folds Mitochondrion Structure Site of photosynthesis (where plant food is made) Site of photosynthesis (where plant food is made) Chloroplast Function Rigid, green, surrounds plant cells Rigid, green, surrounds plant cells Cell Wall Structure Suspends organelles Suspends organelles Cytoplasm Function No nucleus No nucleus Prokaryotic Has a nucleus Has a nucleus Eukaryotic • Create a Venn Diagram using the word bank to differentiate between plant and animal cells. Word Bank Large Vacuole Small Vacuole Mitochondrion Plant Cell Both Nucleus Animal Cell Wall Cell Cytoplasm Chloroplast Cell Membrane Round Shape Square Shape • Create a Venn Diagram using the word bank to differentiate between plant and animal cells. Plant Cell Both Word Bank Animal Cell Large Vacuole Large Vacuole Mitochondrion Small Vacuole Small Vacuole Nucleus Mitochondrion Cell Wall Nucleus Cytoplasm Round Shape Cell Wall Cytoplasm Chloroplast Cell Membrane Chloroplast Cell Membrane Square Shape Round Shape Square Shape Identify the PLANT cell Identify the PLANT cell Identify the PLANT cell Identify the PLANT cell Identify the PLANT cell Identify the PLANT cell.

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Size Changes in Eukaryotic Ribosomes
Proc. Nat. Acad. Sci. USA Vol. 68, No. 12, pp. 3021-3025, December 1971 Size Changes in Eukaryotic Ribosomes (diffusion constant/sedimentation constant/ribosomal dissociation/chick embryo) JOHN VOURNAKIS AND ALEXANDER RICH Department of Biology, Massachusetts Institute of Technology, Cambridge, Mass. 02139 Contributed by Alexander Rich, September 20, 1971 ABSTRACT Evidence is presented that ribosomes two particles are similar. However, these changes suggest active in protein synthesis and attached to messenger that when the ribosome is attached to messenger RNA it has a RNA on polysomes have a smaller diameter than free cytoplasmic single ribosomes. Measurements have been smaller diameter than is found for the free cytoplastic ribo- made on these two types of ribosomes of differences in some. This more compact form of the ribosome is maintained sedimentation velocity and diffusion constant. Differences even when the nascent polypeptide chain is relased by puro- in these quantities suggest about a 20-A decrease in the mycin. We thus infer that there are substantial differences diameter of the ribosomes from chick embryo muscles in the interactions between the ribosomal subunits when when they are attached to messenger RNA. Similar dif- they ferences are also observed in rabbit reticulocytes and are attached to messenger RNA as compared to the free cyto- mouse ascites tumor cells. These two ribosomal states plasmic single ribosome, which is inactive in protein synthesis. have different sensitivity to Pronase digestion and dis- sociate into ribosomal subunits at different KCI concen- METHODS AND MATERIALS trations. This size difference is not associated with a sig- nificant difference in overall ribosomal mass and appears Preparation of Ribosomes.
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Cilia and Flagella: from Discovery to Disease Dylan J
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