The Osmosis Lab SHS Lacrosse Monster #2 Dates performed: 10/10/11 and 10/11/11 Introduction: The purpose of the laboratory investigation was to observe the diffusion of water across a semi-permeable membrane. In this lab‚ dialysis tubing was used to represent the semi-permeable cell membrane. Three dialysis tubes were prepared with 5% sucrose solution and were soaked in solutions of different concentrations. The diffusion of water across a semi-permeable membrane is called osmosis. When
Premium Concentration Semipermeable membrane Osmosis
BIO/101-PRINCIPLES OF BIOLOGY DECEMBER 8TH 2013. JEBA INBARASU Organism Physiology is the method in which many diverse living organisms are considered to have developed from earlier forms during the history of the earth that can be defined as Evolution. Several organisms have evolved as a result of environmental changes within their habitats. Example is a diagram of a whale and details about how the whale has evolved
Premium Cetacea Ocean Mammal
Chris Brunelle Biology 112-online Professor Gaskin September 10‚ 2014 Minimal Organism “A minimal genome is generally defined as the smallest set of genes that allows for replication of the organism in a particular environment (Cho‚ M.‚ 1999). The creation of these minimal genomes can be helpful and harmful at the same time. There are many opinions out there about the subject‚ I will share some of those and my position on the subject. First let me just start with my personal position on minimal
Premium Gene Bacteria Virus
Introduction Osmosis is the movement of water from a region of higher concentration ( hypertonic ) to a region of lower concentration ( hypotonic solution ) through a cell membrane or other semi-permeable membrane until an equilibrium is reached. It is a special case of diffusion called “ passive transport “ which means no energy is required. Diffusion is the movement of a substance by which the molecules move from a region of higher concentration to a region of lower concentration. Aim
Premium Concentration Chemistry Potato
Joshua Annan Biology Section-04 Diffusion and Osmosis December 14‚2012 Alexis‚ Adiba‚ Elliot and Joey Purpose: The purpose of this lab is to get a better understanding of osmosis and diffusion in molecules. We will do this by studying different solutions and how they move through the permeable membrane. Hypothesis: The three different possible predictions were the lab were that the mass would stay the same‚ the mass will increase‚ or the mass will decrease
Premium Diffusion Osmosis Glucose
Mahavira asserted existence of unseen microbiological creatures living in earth‚ water‚ air and fire.[20] Jain scriptures also describe nigodas‚ which are sub-microscopic creatures living in large clusters and having a very short life and are said to pervade each and every part of universe‚ even in tissues of plants and flesh of animals.[21] However‚ the earliest known idea to indicate the possibility of diseases spreading by yet unseen organisms was that of the Roman scholar Marcus Terentius Varro in a
Premium Infectious disease Avicenna Centuries
Science & Health‚ Part C -- Environmental Carcinogenesis & Ecotoxicology Reviews‚ 24(1)‚ 103- 154. doi:10.1080/10590500600614303 Reid‚ M. (2007). Mythical Flower Stories. Lulu.com Skousen‚ M. B. (1992). Aloe vera handbook. Summertown‚ TN: Healthy Living Publications.
Premium Seed Plant morphology
The Effect of pH on the Rate of Osmosis Using a Glucose Solution Melissa Werderitch Biology 157 11/6/06 Introduction In a journal article written by Florian Lang‚ osmosis is essentially explained as the flow of water from one area to another that are separated by a selectively permeable membrane to equalize concentrations of particles in the two locations (Lang‚ 1997). Osmosis is able to maintain osmotic pressure and regulate a cell’s volume. In a hypotonic () or hypertonic () environment
Premium Glucose Enzyme Metabolism
One major ways for the survival of all organisms is called adaptation. When it comes to Intertidal Organisms their no different. Intertidal Organisms inhabit the specific area between low tide and high tide next to the rocks on the coasts‚ marshes and or wetlands. Theses organisms can be from sea stars to types of algae and many more. As the tides come in‚ the habitat of intertidal organisms are sprayed with salt water. Then after the tide depletes‚ the habitat is exposed to the sun. It makes
Premium Tide Intertidal zone Moon
rate of osmosis across a potato’s cell membrane submerged for 94 hours in the solutation. Background Information: Osmosis is the movement of solvent molecules across a partially permeable membrane. They move from a region of low concentration (hypotonic) to a region of high concentration (hypertonic). The rate of osmosis across a eukaryotic cell membrane can be affected by different factors; including temperature‚ concentration gradient‚ water potential and the surface area for osmosis to occur
Premium Osmosis Potato Concentration