molecules combine these are: fatty acid chains‚ glycerol‚ phosphate and choline. Two of the carbons of the glycerol are joined to two fatty acids in a condensation reaction creating ester bonds. The final carbon is bonded to the phosphate molecule‚ which in turn is connected via a covalent bond to choline. Due to the polar nature of the glycerol phosphate and choline molecules‚ they create a hydrophilic area (known as the hydrophilic head). Whereas‚ the fatty acids are non-polar and therefore form
Premium Cell membrane Lipid bilayer Fatty acid
Alhia Harris October 18‚ 2011 Biology Lab report Proteins are very important throughout the body. They have a lot of functions in cells. Antibodies are proteins that help cells rebuild the cells when they are destroyed. Transport proteins move substances from one place to another. Regulatory proteins control cellular metabolism in a way that cells throughout the body can have the right amount of glucose in the blood. A common protein is an enzyme; in cells they speed up chemical reactions. For
Premium Protein Amino acid
Unknown Lab Report Dr. Nathan Cahoone Microbiology 204 December 9‚ 2010 Introduction There are many reasons for knowing the identity of microorganisms. The study and test was done by applying all of the methods that have been learned so far in the microbiology laboratory class for the identification of an unknown bacterium which I was using unknown #25. Results Unknown #25 had the following morphology on a streak plate: medium sized butyrous cream colored colony. Gram-staining was utilized
Premium Bacteria Gram staining Microbiology
Lab Report Abstract: The purpose of this lab was to see how magnesium reacts with oxygen. This reaction must be forced with heat. As magnesium changes to magnesium oxide the mass increased. Procedure: 1. Set up the stand and bunsen burne. 2. Go to crucible heat oven to obtain a crucible. 3. Weigh the crucible and lids mass. 4. Break up the magnesium ribbon on the crucible and weigh the mass of the magnesium‚ crucible‚ and lid. 5. Place the crucible on the ring stand over the flame. Allow
Free Force Mass Oxide
Lab Report Janice Chisholm SCI207: Dependence of Man on the Environment Instructor: Lee Ott April 28‚ 2013 1. What patterns do you observe on the information table 4? While observing the information in table 4‚ it appears that the number of fish changes from time to time and the oxygen increases and / or decreases when this occurs. 2. Develop a hypothesis relating to the amount of dissolved oxygen measured in the water sample and the number of fish observed in the body of water?
Free Observation Scientific method Hypothesis
The objective of this lab was to. First‚ we measured out 2.00g of granular zinc and 2.03g of iodine crystals and added them together into a boiling tube‚ which we labeled "R". After‚ we added a boiling chip into a large test tube labeled "P" and we also labeled an empty regular sized test tube with a "C". When we added 5mL of acetic acid to tube R‚ the solution turned red and was hot. After we add 30 drops of the red solution into tube C and continued to swirl tube R‚ the solution became
Premium Chemistry Water Solution
Year 11 Lab Report Template Experiment – Modelling A. Title • A brief concise descriptive title B. Aim • What are you trying to find out? • What do you want to learn? C. Hypothesis • Write a possible solution to the problem. • If ………………………………………………………………………………………….then ………………………………………………………………………………………………………. • Make sure the above statement is testable. • The Independent variable is ……………………………………………………..
Premium Measurement Experiment Control
Tim Readmond AP Biology Lab Report I. Title a. Modeling Diffusion and Osmosis II. Introduction a. If one places a 1.0 M solution of glucose inside a bag and then places that bag into a beaker containing a 1.0 M solution of sucrose‚ the percent of mass lost in the bag is 10.5%. The solution in the bag is hypertonic while the solution in the beaker is hypertonic‚ which is why water moves from the bag to the beaker and the bag loses mass. b. The purpose of this experiment is to see whether
Premium Sucrose Glucose
In this lab activity students performed an experiment with the use of distilled water and baking soda solutions as control. The experimental controls are accuracy indicators of laboratory results. Thus‚ controls are important in a lab because the observation results are dependent on the controls. The experimental results can be determined to be valid when it is compared with the control solution. The higher the similarity between the results and the control solution‚ the more accurate the investigation
Premium Chemistry Experiment Test method
10/24/2013 LAB TITLE: Single Replacement Reaction of Solid Copper with Silver Nitrate PURPOSE The purpose of this lab is to: • Observe a single replacement reaction‚ and • Calculate the mole ratio of silver (Ag) to copper (Cu) in the reaction MATERIALS • Copper wire (30 cm) • Large test tube • 250 ml beaker • Silver nitrate (AgNO3) powder • Dilute AgNO3 solution • Distilled water • Electronic balance • Glass stir rod • Watch glass PRE-LAB DISCUSSION A single
Premium Silver Copper Force