Half Day - Cell Diverstiy Wrap up

Wednesday October 24th Daily Questions

While looking under the microscope at a plant leaf, tell me three notable features you saw AND what their function is for the cell. (Hint – the notable features would be ones that distinguish it from an animal cell)

The most notabe feature would be that it was GREEN.... Why was it green???  Because it contained CHLOROPLAST.  What is the function of the chloroplast?  This is where photosynthesis occurs in plant cells.  (Solar energy is converted into chemical energy)

A second notable feature on ANY of the plant cells was the cell wall.  This aid in structure and support of plant cells and are not found in animal cells.

The last notable feature was the presence of Central/Contractile vacuoles.  THis looked like big "empty spaces" in many of the plant cells you looked at.  They are actually storage unites for water and nutrients.  Animal cells also have vacuoles but they are MUCH smaller.

When looking at any of the animal tissue cells, what was one notable feature you were able to see and what is it’s function.  Why couldn’t you see this in the bacteria slide?

The only real notable feature about any of the animal tissue was the presence of a nucleus.  The nucleus provides the instructions for all cellular functions because it contains the DNA.  We could not see these on the bacterial slide because bacteria are prokaryotic and do not contain a nucleus.  Remember, this does NOT mean they don't have DNA.  The DNA is found in the cytoplasm in bacterial cells.

The human heart and lungs contain cells that

A.  produce a hormone involved in respiration

B.  Have the same genetic information but perform different specialized functions

C.  use one part of the genetic code to synthesize all enzymes needed by the cell

D.  Contain different number of DNA molecules

Once we got through these questions I instructed you to turn in all the work we have been doing over the past three days in the following order
**Cell Diversity Lab
**SAS Questions
**Vocabulary review (remember, you WILL use letter A)

Don't forget to check Edline for the extra credit option!!!!