Monday, September 20, 2010

Cells + Diffusion and Osmosis

DOWNLOAD "DIFFUSION AND OSMOSIS" SLIDES HERE:

YOU REALLY NEED TO KNOW HOW TO:

(CELLS)
  1. Explain what the words "cell", "organelle", "tissue" and "system" mean.
  2. Draw an animal cell and plant cell and label their organelles accordingly!
  3. State the function of each organelle (nucleus, mitochondrion, chloroplast, cell membrane, cellulose cell wall, cytoplasm, vacuoles, starch and glycogen granules)
  4. State the differences between plant and animal cells.
  5. Explain what "specialization" of cells means.
  6. Give examples of specialization and explain them properly (e.g. root hair, xylem, red blood cell).
(DIFFUSION AND OSMOSIS)
  1. Define diffusion and osmosis, and give examples of both!
  2. Know what the terms "semi-permeable" and "equilibrium" mean.
  3. State differences between diffusion and osmosis.
  4. Give definitions of PLASMOLYSIS and TURGIDITY and state how either of them affect plants.
  5. Give definitions of hypertonic, hypotonic and isotonic! (plus examples!)


VIDEOS:

1. ANIMATION: HOW DIFFUSION WORKS (CLICK TO SEE!)

2. ANIMATION: HOW OSMOSIS WORKS (CLICK TO SEE!)

3. VIDEO OF OSMOSIS


4. DISPLAY OF PLASMOLYSIS IN ONION CELLS


5. ISOTONIC, HYPERTONIC AND HYPOTONIC SOLUTIONS

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