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What are all living things made of?

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Presentation on theme: "What are all living things made of?"— Presentation transcript:

1 What are all living things made of?

2 Cells

3 What life process is happening here?

4

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6 The taking in of food from the environment
Nutrition Ingestion The taking in of food from the environment Ingestion is part of nutrition

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8 Which structures in our bodies carry out the life processes?
ORGANS

9 Cell Organelles Various specialized structures which carry out the life functions in cells

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11 Cell Organelles

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15 J C E D A G H I B F

16 D J C E F H A K G B I

17 Which diagram represents biological organization?

18 Cells Tissues Organs Organ Systems Organism

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21 Plasma (cell) membrane

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23 The Cell Membrane Glycoprotein Glycolipids Phospholipid bilayer
Fatty acid tails Cholesterol Integral protein or transmembrane protein Peripheral protein Phosphate heads

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26 Endocytosis and Exocytosis

27 cell membrane

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31 Organelle and Function
 Plasma membrane is the outer membrane of the cell * It is selectively permeable (semipermeable).

32 Cell membrane Functions
regulates the transport of certain materials into and out of the cell. Cell to cell communication Cellular Response to extracellular signals e.g. hormones, antigens

33  Cytoplasm is a fluid‑like environment between the nucleus and the plasma membrane in which other organelles are suspended and within which diffusion and many biochemical processes occur.

34 Cytoplasm

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36  Nucleus is spherical, often found in the center of the cell, and surrounded by the nuclear membrane. It contains genetic information (within chromosomes) and directs cell activities.

37 Nucleus

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40 Nucleolus, found within the nucleus, is involved with the synthesis of ribosomes (mRNA) which manufacture proteins.

41 Nucleolus

42 Endoplasmic reticulum is a series of interconnecting channels (membranes) associated with storage, synthesis, and the transport of substances (mainly proteins) within the cell.

43 Endoplasmic reticulum (ER)

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45 Which organelle is this?

46 Ribosomes are the sites of protein (enzyme) synthesis, either occurring as free bodies or attached to membranes of the endoplasmic reticulum.

47 Ribosomes

48 Translation Protein synthesis

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50 Mitochondria

51 Mitochondria are the “powerhouses” of the cell, sites of cellular respiration (energy conversion) and production of ATP.

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54 Golgi complex

55 The golgi complex, a series of small membrane‑bound sacs, synthesizes, packages, and secretes cellular products to the plasma membrane.

56 The lysosomes contain digestive enzymes and help with intracellular digestion when fused with food vacuoles.

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58 A vacuole is a space in a cell surrounded by a membrane which may contain water or other materials.

59 Specialized vacuoles are present in unicellular organisms: food vacuoles are digestive organelles and contractile vacuoles help maintain water balance.

60 Vacuole

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62 Specialized vacuoles are present in unicellular organisms: food vacuoles are digestive organelles and contractile vacuoles help maintain water balance.

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65 Centrioles are cylindrical structures found in the cytoplasm which appear to function during cell division. * Commonly found in animal cells.

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68 Chloroplasts, primarily found in plant and algae cells, are pigment containing structures which serve as a site for photosynthesis. Their main pigment is chlorophyll.

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71 The cell wall, made of cellulose, is a nonliving structure which surrounds, protects, and supports a plant cell.

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73 Bacteria vs. Animal Cell

74 no membrane- membrane-bound bound organelles organelles
Prokaryotes vs. Eukaryotes no nucleus nucleus no membrane- membrane-bound bound organelles organelles

75 Animal vs. Plant Cells no cell wall cell wall
irregular shape regular shape no chloroplasts chloroplasts centrioles no centrioles

76 Animal vs. Plant Cells no large vacuole large vacuole
lysosomes no lysosomes centrosomes no centrosomes

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80 The Cell as a Factory

81 Part of Factory Cell organelle
The Cell as a Factory Part of Factory Cell organelle Factory Manager Box of parts Power Plant Assembly Line Hallway Shipping Center Liquid Storage Tank Security Guard

82 Part of Factory Cell organelle Factory Manager - Nucleus
The Cell as a Factory Part of Factory Cell organelle Factory Manager - Nucleus Box of parts - Food Vacuole Power Plant - Mitochondria Assembly Line - Ribosome Hallway - Endoplasmic Reticulum

83 Part of Factory Cell organelle
The Cell as a Factory Part of Factory Cell organelle Shipping Center - Golgi Apparatus Liquid Storage Tank - Vacuole Security Guard - Cell Membrane

84 Cytoskeleton

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90 Endosymbiont Theory Mitochondria and Chloroplasts have their own DNA Their genetic code is different from most other living things They reproduce independently of their host cell Their membranes resemble those of primitive bacteria Mitochondria can move in “packs” inside their host cell

91 http://alonsolivingenvironment. blogspot

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93 Cell organelles

94 cytoplasm vacuole centrioles membrane Smooth ER nucleolus chromosome ribosome mitochondria Rough ER nucleus Golgi bodies Food vacuole

95 nucleolus chromosome vesicles chloroplast nucleus Golgi Cell wall membrane ribosome Water vacuole mitochondria ER cytoplasm


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