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Two Main Types of Eukaryotic Cells

Two Main Types of Eukaryotic Cells. Animal Cell. Plant Cell. 1. Organelles. Very small size Can only be observed under a microscope Have specific functions Found throughout cytoplasm. 2. Organelles Found in Cells. Examples of Organelles include:.

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Two Main Types of Eukaryotic Cells

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  1. Two Main Types of Eukaryotic Cells Animal Cell Plant Cell 1

  2. Organelles Very small size Can only be observed under a microscope Have specific functions Found throughout cytoplasm 2

  3. Organelles Found in Cells Examples of Organelles include: Endoplasmic reticulum (rough & smooth) – canals for movement Golgi Bodies – wrap & export proteins Nucleolus – makes ribosomes Lysosomes – digests & gets rid of wastes Ribosomes – makes proteins 3

  4. Golgi Bodies Stacks of flattened sacs Have a shipping side & a receiving side Receive & modify proteins made by ER Transport vesicles with modified proteins pinch off the ends Transport vesicle 4

  5. Lysosome Contain digestive enzymes Break down food and worn out cell parts for cells Programmed for cell death (lyse & release enzymes to break down & recycle cell parts) 5

  6. Nucleolus Cell may have 1 to 3 nucleoli Inside nucleus Disappears when cell divides Makes ribosomes that make proteins 6

  7. Smooth & Rough Endoplasmic Reticulum Smooth ER lacks ribosomes & makes proteins USED In the cell Rough ER has ribosomes on its surface & makes proteins to EXPORT 7

  8. Cell Powerhouse Mitochondrion( mitochondria ) • Rod shape • Site of Cellular respiration 8

  9. In Animal Cells: Mitochondria • Active cells like muscles have more mitochondria • Burn sugars to produce energy ATP 9

  10. Surrounding the Cell Cell membrane • Lies immediately against the cell wall in plant cells • Made of protein and phospholipids • Selectively permeable 10

  11. Cell Membrane Cell membrane • Living layer • Controls the movement of materials into and out of the cell • Selectively permeable 11

  12. Cytoplasm of a Cell Cytoplasm • Liquid substance enclosed by cell membrane 12

  13. More on Cytoplasm Cytoplasm • Contains organelles to carry out specific jobs • Examples: chloroplast & mitochondrion 13

  14. Control Organelle Nucleus • Controls the normal activities of the cell • Bounded by a nuclear membrane • Contains chromosomes 14

  15. More on the Nucleus Nucleus • Each cell has DNA that carry genes • Genes control cell characteristics 15

  16. Plant Cell Organelles Chloroplast • Contain the green pigment chlorophyll • Traps sunlight to make to make sugars (food) • Process called photosynthesis 16

  17. Plant Cell Cell wall • Dead layer • Large empty spaces present between cellulose fibers • Freely permeable 17

  18. Plant Cell Made of cellulose which forms very thin fibers Strong and rigid Found in plant cells Cell wall 18

  19. Plant Cell Cell wall • Protect and support the enclosed substances (protoplasm) • Resist entry of excess water into the cell • Give shape to the cell 19

  20. Plant Cell Organelles Vacuole • Have a large central vacuole • Surrounded by tonoplast • Contains cell sap • Sugars, proteins, minerals, wastes, & pigments 20

  21. Different kinds of plant cells Onion Epidermal Cells Guard Cells root hair Root Hair Cell 21

  22. Animal cell vacuole cytoplasm No cell wall or chloroplast Stores glycogen in the cytoplasm for food energy nucleus mitochondrion cell membrane glycogen granule 22

  23. Different kinds of animal cells white blood cell Amoeba red blood cell muscle cell sperm cheek cells nerve cell Paramecium 24

  24. Similarities between plant cells and animal cells Both have a cell membrane surrounding the cytoplasm Both have a nucleus Both contain mitochondria 25

  25. Differences between plant cells and animal cells Animal cells Plant cells Relatively smaller in size Relatively larger in size Irregular shape Regular shape No cell wall Cell wall present 26

  26. Differences between Plant Cells and Animal Cells Animal cells Plant cells Vacuole small or absent Large central vacuole Glycogen as food storage Starch as food storage Nucleus at the center Nucleus near cell wall 27

  27. Plant Cells -have chloroplasts and cell walls -can make their own food through photosynthesis -have large vacuoles to store water V. Plant vs. Animal Cells Animal Cells -have centrioles used in cell division -can’t make their own food Both Plant & Animal Cells -both have: Plasma membranes Mitochondria Cytoplasm Nucleus’ Nucleolus’ Golgi E.R. DNA -both are living

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