5 points, cite sources in APA format after your answer. Strawberries are an excellent source for extracting DNA because they are easy to pulverize which breaks the cells of the strawberries apart. The homogenate of strawberries is produced through the kinetic energy (heat which can weaken or even destroy intermolecular forces) mechanically breaking down of the cell wall and structure. (Wilbraham, A. C. (2005). Prentice Hall chemistry.
Why? Experiment 2: Starch Test Fill in the table below with the results from the starch test experiment. Results Starch Test Solution Initial Color Color with Iodine Solution starch solution water Iodine solution is added to a chocolate chip cookie solution. The color changes to purple. Based on this result, what biological molecules are present in the chocolate chip cookie solution?
The Effects of Different Enzymes on Apple Juice Production By: Lars Schoppmann 12/5/14 Period 6 Mrs. Cushing Lab Partners: Matt Thompson and Chris Butler Introduction: The question of this experiment is " How do different enzymes affect the production of applesauce ?" The enzymes which gets tested are pectinase and cellulase. Cellulase is an enzym that is used to break down cellulose, wich reinforces the cell walls. Pectinase breaks down pectin , which breaks down cell walls of plant cells. The experiment hypothesis " If three drops of pectinase are stirred into applesauce and used to produce apple juice then it will produce more than water or cellulase because the fruit cells walls gets breaken down and gets turned into apple juice".
“Hey there’s corn in my candy!” corn syrup is a sweet substance made from processed cornstarch. Corn syrup that is made in food and drinks is called “High-Fructose Corn Syrup” (HFCS). It is mostly used in soft drinks, and many foods and baked goods. Most people say sugar is a white powdery substance that we use to make our food sweet, but actually, it is more than that. Sugar is known as sucrose and it comes from two different plant sources.
magnets zipper locking plastic bags beakers Petri dishes micro spatulas tongs 13- x 100-mm test tubes; rubber or cork stoppers to fit rings, ring stands, gauzes, burners, ignitors ice paper towels filter paper funnels Using this equipment, devise a procedure for the separation of the four substances. Design experiments, and write procedures for the designs. Ask the instructor to approve each experimental design. Questions Explain why the sodium chloride is contaminated with benzoic acid. Suppose sawdust from wood less dense that water were incorporated into the mixture.
Purpose (5 points): The purpose of this lab is to learn how to extract DNA and to analyze extracted DNA. This lab allows the conductor of the lab to analyze the steps taken to extract the DNA and realize the purpose of each step. This lab activity teaches one how cell barriers can be broken. Hypothesis: If the enzyme, alcohol, detergent, alcohol, and salt are all used accordingly to extract the DNA from the split peas, then a small amount of the DNA will separate from the solution, looking like long thin strands. DNA is insoluble in alcohol, but soluble in water, so this experiment will test this scientific principle of alcohol.
You can investigate the effect of increasing size on uptake by diffusion using agar jelly ‘animals’. Safety Wear eye protection. Avoid skin contact with potassium manganate. If potassium manganate solution is spilt do not clean it up yourself – tell the teacher/lecturer. Procedure 1 Cut the agar jelly to give three cubes with heights of 0.5 cm, 1 cm and 2 cm.
Jamie and Adam are both the control group and the experimental group which makes this a within subject design. Simply put, they are going to take a urinalysis before and after consuming poppy seeds to see if it will result in a false positive. To begin, Jamie and Adam take a supervised, preliminary drug test. The reason for doing this is to make sure the control is negative before they consume any poppy seeds. Both Jamie and Adam test negative for any type of drug in their urinalysis.
This will be tested using a 2, 6 dichlorophenolindophenol (DCPIP) dye which is coloured in its oxidized form but when it is reduced it will become colourless. The reduction happens when the Krebs cycle produces reducing agents for the reduction to happen. This will help us identify and compare the rate at which these reducing agents are formed under the different condition (Carleton University. 2012). The objective of this lab is to extract mitochondria from an etiolated Mung bean seedling in order to study the metabolic functions of the mitochondria.
After a little research what was hypothesized was that the night crawlers would make the apple decay faster because they are a special breed. For the experiment I bought two types of worms; Canadian night crawlers and red worms. I made sure that both worms were containing the same amount of soil, and same brand of soil. Next I bought one apple and cut in half and placed two slices into each container, containing the two different types of worms. Every three days would record the growth of the mold or anything that’s changing about the apple.