Monday, November 22, 2010

11/22/10 Period 8



Today we went over our homework which was to answer 4 questions about the onion and plant cells.




1. What is a cell and why are they called building blocks?




A cell is a microscopic organism made up of organelles. A cell makes up a tissue, but is also maade up by other living things. They are called building blocks because they all need to work together. They all work together to build up the tissue and make it work.




2. Why did the grass have to be very thin?




The grass had to be thin so we could see the detail of the cell and the different parts of the cell.




3. Why didn't we see any chloroplasts in the onion cell.




We did not see any chloroplasts in the onion cell because it is not green. Also, onions are grown in the ground and do not get any sunlight which means the chloroplasts can't survive.




4. Make a table comparing plant and animal cells.




Plants vs. Animals




Similarities- They both have a nucleus. They are both microscopic. Differences- The plant cells are green and the animal cells are brown. It is harder to see the parts of a grass cell because they were too small.




Mr. Finley said to know all parts of the cell and be able to label them very soon.




If you are having trouble with these questions you could ask a friend to explain them to you or go in early or afterschool to do them again if possible. If that doesn't work you can always ask Mr. Finley.







JR Period 8


















4 comments:

  1. Lloyd here.
    One correction I'd like to suggest is that Mr. Finley told us that cells are actually not organisms.

    ReplyDelete
  2. Rohan
    A cell is not entirley made of other living things. Many are not living.

    ReplyDelete
  3. Kevin Dackow: in addition to what the author said for the questions we answered in class, the grass had to be thin so the light could go through it and so it could fit under the coverslip.

    ReplyDelete