Ok so here is the thing..I am sorry for not updating this...On Friday the 11th I only got through the lesson with my first period class...I had my second period work on their reveiw sheets. (Had an allergic reaction and it was a mess!) Monday (B day) I was absent due to another allergic reaction so they also worked on the review....
Tuesday Dec 15-
A day- reviewed
B day- did the lesson from friday and then reviewed.
Objective: The scholars will perform an activity in order to differentiate the different types of osmosis.
Warm Up:
1. Which organelle is correctly matched with the cell process it performs?
F vacuole - protein synthesis in leaf cells
G chloroplast - diffusion of water in root systems
H mitochondrion - energy production in muscle tissue
J ribosome - production of messenger RNA molecules in yeast cells
2. Keratin is a protein found in hair. What organelle is involved in the production of keratin?
A the nucleus
B the vacuole
C the ribosomes
D the mitochondria
Use the information below to answer Numbers 3 and 4.
Researchers have discovered a toxin that stops cells from releasing stored energy. Cells exposed to this toxin cannot carry out many of their normal processes.
3. Which of these cell organelles are most directly affected by this toxin?
F ribosomes
G chloroplasts
H mitochondria
J vacuoles
4. When cells are exposed to this toxin, which of these processes is least affected?
A cell division
B osmosis
C aerobic respiration
D photosynthesis
5. What would happen to an animal cell with an internal salt concentration of 0.8% if it were placed in a salt solution with a concentration of 20%?
F The cell would swell and burst, because the 20% salt solution is hypotonic with respect to the cell,
causing a net movement of water into the cell.
G The cell would swell and burst, because the 20% salt solution is hypertonic with respect to the cell,
causing a net movement of water out of the cell.
H The cell would lose water and shrivel, because the 20% salt solution is hypertonic with respect to
the cell, causing a net movement of water out of the cell.
J The cell would lose water and shrivel, because the 20% salt solution is hypotonic with respect to the
cell, causing a net movement of water into the cell.
Vocabulary:
1. Cell Membrane
2. Cell Wall
3. Lipid Bilayer
4. Concentration
5. Diffusion
P.O.A- Plan of action
1. Warm up and vocabulary
2. Hand in homework
3. Classwork- notes
4. review
Tonight's Homework:
Complete the review sheet
STUDY FOR TEST!!!
Homework due-
Read and outline 7-4
Tuesday, December 15, 2009
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