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Week 7

9/25-9/29

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Agenda 9/25

  • Finish Acids, Bases, Buffers Notes
  • Finish Cell Notes
  • LabQuest Operation

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HW - Create a data table for Acids, Bases & Cells Lab

Define the functions of all the cell parts listed in the slide deck

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Amphoteric

Compounds that can act as either an acid or a base depending on the situation.

    • Ex: water

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Cells

Prokaryote

Eukaryote

No nucleus or membrane- bound organelles

Nucleus w/ organelles

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Bacteria

Plants, Animals, Protists, Fungi

Similarities

DNA, Ribosomes, cell membrane and/or cell wall, cytoplasm

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A few more things…

  • pH a bit over 7 (basic)
  • inside some organelles, pH is more acidic (lysosome)
  • cytosol = everything inside the cell (cytoplasm + cell parts/organelles)

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Know the following cell parts & their functions

  • ribosome
  • nucleus
  • ER (rough and smooth)
  • Golgi apparatus
  • cell membrane
  • cell wall
  • lysosome
  • chloroplast (plastids in general)
  • mitochondria
  • nucleolus
  • vacuole
  • vesicle (general use)

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Agenda 9/27

  • Acids, Bases & Cells Lab
    • Test tap water, liver homogenate, potato homogenate & commercial buffer

HW - Read Section 7.2 & answer review questions

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How to use the LabQuest & pH probe (end 2:43)

the pH probe should almost never be dry (rinse after each use and return to distilled water bucket or place in solution to take pH)

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Agenda 9/29

  • Graphing & Conclusions - due Monday
  • Lab 2f Part I & II Write up
    • Modification to procedure: we have no caps for the tubes, you can use your gloved finger or parafilm