Dec 7 and Dec 8

Objective: Students will perform an activity in order to describe the structure and function of organelles.
Warm Up:
1. Which of the following is a function of the cell membrane?
A breaks down lipids, carbohydrates, and proteins from foods
B stores water, salt, proteins, and carbohydrates
C keeps the cell wall in place
D regulates which materials enter and leave the cell

2. Diffusion is the movement of molecules from
F an area of low concentration to an area of high concentration.
G an area of high concentration to an area of low concentration.
H an area of equilibrium to an area of high concentration.
J all of the above

3. Which of the following organisms are prokaryotes?
A plants
B animals
C bacteria
D all of the above

4. Starch turns blue-black in the presence of iodine solution. A selectively permeable dialysis sac containing a starch solution is placed into a beaker of iodine solution.
If the dialysis sac is permeable only to water and iodine, what will the solutions in the beaker and the sac look like after two hours?



F the iodine solution in the beaker will turn blue-black, the starch solution will not change.
G the starch solution in the dialysis bag will turn blue-black; the iodine solution won’t change
H neither solution will turn blue-black
J both solutions will turn blue black

5. When the concentration of molecules on both sides of a membrane is the same, the molecules will
A move across the membrane to the outside of the cell.
B stop moving across the membrane.
C move across the membrane equally, in both directions.
D move across the membrane to the inside of the cell.

Vocabulary:
1. Nucleolus
2. Ribosome
3. Endoplasmic Reticulum
4. Golgi Apparatus
5. Lysosome

Classwork:
1. Warm Up and Vocabulary
2. Hand in homework
3. Notes on the Cell
4. Foldable (might not get to this today)


Homework Due:
Finish Lab

Tonight's Homework:
Read and Outline 7-3
Have notebooks ready for warm up and vocabulary check next class. (Nov 1-Dec 8) Counts as a test grade.