PPT-1 B- Eukaryotic Cell

Copyright 2002 Pearson Education Inc publishing as Benjamin Cummings Eukaryotes 3 Microtubules and microfilaments The Cytoskeleton الهيكل الخلو ي A network of fibres شبكة من الالياف. Prokaryotic vs. Eukaryotic Cells. Two Basic Types. Remember….cells are the basic unit of life for ALL living things.. There are two basic types of cells:. Prokaryotic cells . – found in bacteria. 2.3.1, 2.3.2: Liver cell. 2.3.3: Electron micrograph of liver cell (rat). Glycogen. 2.3.4: Prokaryotic VS Eukaryotic cell. FEATURE. Prokaryotic cell. Eukaryotic cell. DNA. Naked DNA. DNA associated. with proteins. Eukaryotes, Prokaryotes and Measuring Cells. Lesson Objectives. To understand the difference between eukaryotic and prokaryotic cells.. To describe the features of a prokaryotic cell such as a bacterium.. Copyright © 2002 Pearson Education, Inc., publishing as Benjamin Cummings. Eukaryotic Cell. 3. Eu. = True. Karyon. = Nucleus. B- The Eukaryotic Cell. Animal Cell. Plant Cell. Compare Animal and Plant cell. Two Basic Types. Remember….cells are the basic unit of life for ALL living things.. There are two basic types of cells:. Prokaryotic cells . – found in bacteria. Eukaryotic cells . – found in . Unit. Context of Unit in Course . Unit is for a second year, intro cell biology or intro microbiology course, scalable to first year intro biology. This . unit comes in . the middle . of . the course. Prokaryotic . Cell. The . term prokaryote is derived from the Greek word- . “prokaryote”. meaning before nuclei. . Prokaryotic . cells are simpler and smaller than the eukaryotic cells. . These cells lack membrane bound organelles. . Eukaryotic translation. Eukaryotic mRNAs are characterized by two post-transcriptional modifications: the 5-terminal 7methyl-GTP cap and the 3-terminal poly(A) tail .. The 7methyl-GTP cap is essential for mRNA binding by eukaryotic . A primary transcript . is the initial, linear, RNA copy of a transcription unit—the segment of DNA between specific initiation and termination sequences. . The primary transcripts of both prokaryotic and eukaryotic . P & E UKARYOTIC C ELLS  As you have already learned, everything is made up of living cells.  And the cells themselves are made up of many different parts .  There are many different cell A cell wall is defined as the non-living component, covering the outmost layer of a cell. Its composition varies according to the organism and is permeable in nature. The cell wall separates the interior contents of the cell from the exterior environment. It also provides shape, support, and protection to the cell and its organelles. However, this cellular component is present exclusively in eukaryotic plants, fungi, and few prokaryotic organisms. As stated above, fungi also possess cell walls, but they are made up of chitin, a derivative of glucose which is also found in the exoskeletons of arthropods. And just like the cell walls in plants, they provide structural support and prevents desiccation. AP Biology. Mrs. Gionta. SC9. The Microscopic World of Cells. Cells are marvels of complexity. Trillions of cell in human body. Many specialized types. Main tool for exploration--Microscope. Microscopes as Windows on the World of Cells. An early developmental stage of a starfish. Kingdom . Animalia. Invertebrates. Some reproduce sexually, others asexually. Can regenerate from just one arm. B- Mammal Intestine. (Multicellular/Eukaryotic). This theory . is . one . of the foundations . of . biology.. 2. Antonie . van. . Leeuwenhoek. The first man to witness . a . live cell . under a . microscope was Antonie . van . Leeuwenhoek, who .