Saturday, November 21, 2009

Week Nine

This week we learned about prokaryotic and eukaryote. We now know that prokaryotic cells lack a nucleus and membrane bound organelles (except ribosomes and cytoplasm). Eukaryotics have a complex structures. We then made a concept chart of photosynthesis. When we made it, we realized the three key pieces are CO2, water, and light. We thought about three experiments that we could do to test if you need these elements to photosynthesize.
Our outcome is that CO2 is needed qualitatively and light is definitely needed. We weren't sure if water was need though.
The next day we started learning about the sugars in photosynthesis and what parts do what for the plant.
sucrose--> sugar for coffe/ cereal (from sugar cane)
maltose/glucose--> plants/vegetables
fructose--> fruit/vegetables
lactose--> milk
galactose--> milk
roots--> water
whole plant--> sunlight
leaf--> carbon dioxide
At the end of class we started making Lego models of the molecules. For my group, black was a oxygen atom, green was a carbon atom, and blue was a hydrogen atom.

Sunday, November 8, 2009

Week Eight

This week was very short and mostly a repeat of what we learned before.
We first did a little research on paramecium and answered these questiopns:
"Is paramecium an animal cell?" and "How are paramecium moving?"
Paramecium aren't an animal cell or a plant cell, they're in a category called protozoa. Despite this, they are most like an animal cell with their function and organelles. Paramecium have little cilia all around a slick, hard shell like cover which helps them move. They have a very trial-and-error kind of process when moving around. They also move very quickly from place to place so ypou have to be quick when looking at one.
Also this week we did a chart comparing and contrasting animal, plant, and bacteria cells. (I emailed you the chart because it wouldn't paste into the document.)
Another thing we did was try to find paramecium in pnd water. We found some little circular things flying around. It looked like they hadd a bunch of little legs on the side.