... diffusion because there is more surface area to absorb the solute with a smaller volume to diffuse into. More solutes enter the cell with a larger surface area to volume ratio. Materials: - 2% agar containing NaOH and the pH-indicator dye phenolphthalein - 1% phenolphthalein solution - 0.1M HCl - 0.1 M NaOH - Squares of hard, thin plastic (from disposable plates); non-serrated knives; or scalpels from dissection ... kits - Metric rulers - Petri dishes and test tubes - 2% agar with phenolphthalein Procedures: 1. Place some phenolphthalein in two test tubes. Add 0.1 M HCl to one test tube...

• Word Count: 2017
• Approx Pages: 8
• Grade Level: High School

... microscope size of most cells. The test was done to observe the relationship between the surface area and the volume of the cell. By using different sized samples of blue agar as our "cells", we observed how fast and how well they could take in an acid. Introduction Almost all cells are unable to be seen by the naked eye. The ... , the cell will die. The survival of the cell depends heavily upon the relationship between its surface area and volume (Petersen 59). In this experiment, different size samples of blue agar were used as cells of various sizes. I believe that that the "cells" of...

• Word Count: 511
• Approx Pages: 2
• Grade Level: High School

... /1979.htm). "Danish Steen Willadsen cloned the first sheep in 1984. He fused a cell from an 8-cell lamb embryo with an enucleated unfertilized egg. The fertilized embryos were coated with agar and placed in the oviducts of a sheep to grow for a week. They were then placed into a uterus of a surrogate mother, and one sheep survived birth v/s the first cloned mammal by ... ...

• Word Count: 1955
• Approx Pages: 8
• Grade Level: High School

... -carotene, lutein, and zeaxanthin. All red algae reproduce sexually; a female egg is fertilized by a male sperm. It is not unusual for red algae to alternate between diploid and haploid generations. Agar, which is used to grow colonies of microorganisms, is extracted from rhodophytes; agarose is extracted from Gracilaria (Margulis 1998). Phylum Gamophyta Gamophytes are green algae that reproduce sexually, although they ... ...

• Word Count: 3806
• Approx Pages: 15
• Grade Level: Undergraduate